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1983[X]
1Author    Annegret LipkaRequires cookie*
 Title    Darstellung und Kristallstruktur des 2:3-Adduktes von Antimontrichlorid und 4-Phenylpyridin, 2 SbCl3 * 3 (CnH9N) Preparation and Crystal Structure of the 2:3 Adduct of Antimony Trichloride and 4-Phenylpyridine, 2SbCl3 * 3(CnH9N)  
 Abstract    A congruently melting phase of molar ratio 2:3 was identified in the system SbCl3/4-phenylpyridine. The structure consists of two different types of complex units: One SbCl3 molecule is bonded to one 4-phenylpyridine ligand only, whereas the other one forms a complex with two 4-phenylpyridine ligands. The SbCl3 unit in the 1:1 species is pyrami-dally shaped, whereas the SbCl3 unit in the 1:2 species displays a T-shaped geometry. The mean angle between the phenyl and pyridyl planes is 33.3°; mean bond lengths are <Sb-Cl> = 247.6 pm and <Sb-N> = 241.7 pm. 
  Reference    Z. Naturforsch. 38b, 341—346 (1983); eingegangen am 27. September 1982 
  Published    1983 
  Keywords    Antimony Trichloride, Crystal Structure, Stereochemistry 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0341.pdf 
 Identifier    ZNB-1983-38b-0341 
 Volume    38 
2Author    Brigitte Eisenmann, Hanna Jordan, Herbert SchäferRequires cookie*
 Title    Preparation and Crystal Structure of Ba6Sn2P6  
 Abstract    The new compound BaeSn2P6 crystallizes in the monoclinic system, space group P2i/c with lattice constants a = 883.7 ± 0.5 pm b = 1268.8 ± 0.8 pm c= 862.3 ± 0.5 pm ß = 114.42 ± 0.10°. The compound is isotypic to KeSn2Te6 and contains the Sn2P6 12_ -anions which are isosteric with the Sn2Te6 6_ -units. 
  Reference    Z. Naturforsch. 38b, 404—406 (1983); eingegangen am 4. November 1982 
  Published    1983 
  Keywords    Bariumhexaphosphidohypodistannate, Zintl Phase, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0404_n.pdf 
 Identifier    ZNB-1983-38b-0404_n 
 Volume    38 
3Author    HeinzDieter Lutz, Willi Buchmeier, Bernward EngelenRequires cookie*
 Title    Crystal Structure of Lead Sulfite  
 Abstract    The crystal structure of orthorhombic PbSOß (Pnma, Z = 4, a = 790.3(1), b = 548.8(1), c = 680.2(1) pm) has been determined using single crystal X-ray diffraction data (final R for 663 reflections with I > 2<r(I) = 0.052). The para-meters of the atoms in the asymmetric unit are: Pb(4c) 0.. The sulfite ion has S-O distances of 149.4(7) and 153.7(5) (twice) pm. The Pb-0 distances of the edge-connected Pb-0 7 polyhedra (distorted mono-capped trigonal prism) range from 253.4(5) to 284.8(5) pm. The structure is closely related to that of PbS04. 
  Reference    Z. Naturforsch. 38b, 523—525 (1983); eingegangen am 16. Dezember 1982 
  Published    1983 
  Keywords    Lead Sulfite, Crystal Structure, Sulfite 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0523_n.pdf 
 Identifier    ZNB-1983-38b-0523_n 
 Volume    38 
4Author    Karl-Friedrich Tebbe, Roland FröhlichRequires cookie*
 Title    Untersuchungen an Polypseudohalogeniden, II [1] Darstellung und Kristallstruktur des Rubidiumdicyanotriiodids, Rb[I(ICN)2] Preparation and Crystal Structure of Rb[I(ICN)2]  
 Abstract    The new compound Rb[I(ICN)2] can be prepared in aqueous solution by simple addition of two mole equivalents of ICN to one formula unit Rbl. The solid is isotypic with CS[I(ICN)2] and crystallizes in the orthorhombic space group Pmmn with a = 16.246 A, b = 6.795 A, c = 4.397 A and Z = 2. The crystal structure has been solved from diffracto-meter data and refined to R = 0.035 for 313 observed reflections. The structure may be interpreted as a layer-like package of Rb+ cations and pentahalide-analogous anions [I(ICN2]~. The anionic groups are angular with symmetry mm 2 and y(I-I--I) = 128.69°, 0>(I--I-C) = 175.5°, <p(I-C-N) = 177°, d(I~-I) = 3.271 A, d(I-C) = 2.11 A, d(C-N) = 1.13 A. The cation is surrounded by a distorted cube of iodine atoms with a minimum distance d(Rb-I) = 3.775 Ä. Some additional results on the reactions of alkali halides and halogenocyans in different solvents are mentioned and compared with those described elsewhere. 
  Reference    Z. Naturforsch. 38b, 549—553 (1983); eingegangen am 14. Februar 1983 
  Published    1983 
  Keywords    Rubidiumdicyanotriiodide, Polypseudohalide, Pseudopentahalide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0549.pdf 
 Identifier    ZNB-1983-38b-0549 
 Volume    38 
5Author    Wilhelm Isenberg, NaylaK. Homsy, Jens Anhaus, HerbertW. Roesky, GeorgeM. SheldrickRequires cookie*
 Title    Synthese und Struktur von N2S3C1 + SbCI^ Synthesis and Structure of N2S3C1+ SbCl6~  
 Abstract    N2S3C1+ SbClö -was prepared by chlorination of N4S4 • SbCls with elemental chlorine. The crystals are monoclinic, P2i/c, with a = 1492.4(4), b = 1233.6(2), c = 1437.5(4) pm, ß = 91.40(2)°, and R = 0.059 for 3663 observed reflections. There are two independent cations and anions in the asymmetric symmetric unit. The appreciable interionic inter-action results in a high density of q = 2.642 g • cm -3 (calcd). In einer vorausgegangenen Arbeit berichteten wir u.a. über Reaktionen des Chlortrithiadiazylchlorids 1 mit Lewis-Säuren [1], Bei diesen Reaktionen wird im allgemeinen nur das ionogen gebundene Cl sub-stituiert, so daß sich Verbindungen der Formel N2S3C1+ MCI4-(M = AI, Fe) ergeben. Lediglich SbCls reagiert mit 1 unter Substitution beider Cl zu N2S3(SbCle)2. Die Bildung der monosubstituierten Verbindung N2S3C1+ SbCls -2 wurde nicht beob-achtet. Nun gelang uns die Darstellung von 2 durch Chlorierung des Addukts N4S4 • SbCls [2] mit ele-mentarem Chlor. Experimenteller Teil 
  Reference    Z. Naturforsch. 38b, 808—810 (1983); eingegangen am 25. März 1983 
  Published    1983 
  Keywords    Chlorotrithiadiazol, Hexachloroantimonate, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0808.pdf 
 Identifier    ZNB-1983-38b-0808 
 Volume    38 
6Author    Walter AbrielRequires cookie*
 Title    Die Kristallstruktur von [Na(H20)3]2TeBr6, ein Hydrat mit Ketten aus flächenkondensierten Na(H20)6-Oktaedern The Crystal Structure of [Na(H20)3]2TeBr6, a Hydrate with Chains of Face-Sharing Na(H20)6 Octahedra  
 Abstract    Using 293 K diffractometer intensity data the structure of [Na(H20)3]2TeBr6 has been determined by single crystal X-ray technique and refined to a final Rw of 0.048. The crystals are monoclinic (space group C2/m) with a — 13.039(4) A, b = 10.899(8) A, c = 6.838(3) A, ß = 115.89(2)° and Z = 2. The structure contains infinite chains parallel [001] built up by face-sharing Na(H20)6-octahedra. Isolated TeBrß 2-octahedra between these chains represent the anion part of the structure, which can be regarded as a packing of layers based on a 3 3 .4 2 .-net consisting of oxygen and bromine atoms. 
  Reference    Z. Naturforsch. 38b, 1543—1547 (1983); eingegangen am 20. Juli 1983 
  Published    1983 
  Keywords    Crystal Structure, Hydrates, Tellurates 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1543.pdf 
 Identifier    ZNB-1983-38b-1543 
 Volume    38 
7Author    Rüdiger Kniep, Lutz Körte, Dietrich MootzRequires cookie*
 Title    Kristallstrukturell von Verbindungen A2X2 (A = S, Se; X = Cl, Br) Crystal Structures of Compounds A2X2 (A = S, Se; X = Cl, Br)  
 Abstract    The crystal structures of compounds A2X2 (A = S, Se; X = Cl, Br) contain molecules X-A-A-X with dihedral angles between 83.9° and 87.4°. Three different types of molecular packing are realized: S2CI2, S2Br2 (a-Se2Br2) and /?-Se2Br2(Se2Cl2). Details of molecular geometries as well as crystal structures are discussed. 
  Reference    (Z. Naturforsch. 38b, 1—6 [1983]; eingegangen am 20. August 1982) 
  Published    1983 
  Keywords    Sulfur(I) Halides, Selenium(I) Halides, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0001.pdf 
 Identifier    ZNB-1983-38b-0001 
 Volume    38 
8Author    Kurt Klepp, Weif BrongerRequires cookie*
 Title    Na6CoS4 -ein Thiocobaltat mit isolierten CoS4-Anionen Na6CoS4 -A Thiocobaltate with Isolated C0S4 Anions  
 Abstract    NaeCoS4 crystallizes in the hexagonal space group P 63111c with a —890.9(2) pm and c = 687.8(2) pm, Z = 2. The crystal structure was determined from four circle diffracto-meter data and refined to a conventional .ff-value of 0.020. NaöCoS4 is isotypic with NaeZnC>4. The crystal structure can be derived from a h.c.p. arrangement of S atoms. Co atoms occupy tetrahedral voids, the resulting CoS4-tetrahedra being almost regular with an average Co-S distance of 235 pm. Na atoms occupy tetrahedral and octahedral voids in the ratio 1:1. 
  Reference    (Z. Naturforsch. 38b, 12—15 [1983]; eingegangen am 27. August 1982) 
  Published    1983 
  Keywords    Crystal Structure, Ternary Chalcogenides, Cobalt Compounds 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0012.pdf 
 Identifier    ZNB-1983-38b-0012 
 Volume    38 
9Author    Hans Hartl, Irene Brüdgam, Farbod Mahdjour-Hassan-AbadiRequires cookie*
 Title    Synthese und Strukturuntersuchungen von Iodocupraten(I): II. Diiodocuprate(I) RCuI2 mit isoherten Ketten ^ [Cul4 2~] * R 1 = N-Methylpyridinium, R 2 = Dimethyl ( 3 -dimethylamino -2 -aza -2 -propenyliden ) ammonium [1] Syntheses and Structure Analyses of Iodocuprates(I): II. Diiodocuprates(I) RCUL2 with Isolated Chains [CULI/2~]; R 1 = N-Methylpyridinium, R 2 = Dimethyl(3-dimethylamino-2-aza-2-propenyliden) Ammonium  
 Abstract    N-Methylpyridinium-diiodocuprate(I), CßHgNCuI^ and dimethyl(3-dimethylamino-2-aza-2-propenyliden)ammonium-diiodocuprate(I), C6H14N3CUI2, are obtained by reacting Cu with C6H8NI3 or C6H14N3I3 in acetone. Both compounds are built up by the organic cations and chains of edge sharing tetrahedra<jo[Cul4/2-]. The iodocuprate(I) anions are in intimate contact with the cations via intermolecular I • • • C interactions. Though nearly the same average Cu-I distance of 267.2 or 268.2 pm was found for both iodocuprate(I) anions there are different Cu-Cu distances (301-354 pm). 
  Reference    (Z. Naturforsch. 38b, 57—61 [1983]; eingegangen am 30. September 1982) 
  Published    1983 
  Keywords    Diiodocuprates(I), Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0057.pdf 
 Identifier    ZNB-1983-38b-0057 
 Volume    38 
10Author    Karl Wieghardt, Ursula Bossek, Martina Guttmann, Johannes WeissRequires cookie*
 Title    Metallkomplexe der Liganden  
 Abstract    1.4.7-Triazacyclononan-N.N .N -tris-2-ethansulfonat (TES) und 1.4.7-Triazacyclononan-N.N' .N'' -trisethylacetat (TEA). Die Kristallstrukturen von Na[Ni(TES)(H20)] • 5 H20 und Na[Cu(TES)] • 3 H20 Transition Metal Complexes Containing the Ligands 1,4,7-Triazacyclononane-N,N',N"-tris-2-ethanesulfonate (TES) and l,4,7-Triazacyclononane-N,N , ,N"-tris-ethylacetate (TEA). The Crystal Structures of Na[Ni(TES) (H20)] • 5H20 and of Na[Cu(TES)] • 3H20 The syntheses of two new, potentially hexadentate ligands with an N3O3 donor set is reported: l,4,7-triazacyclononane-N,N , ,N"-tris-2-ethanesulfonate (TES) and 1,4,7-tria-zacyclononane-N,N',N"-tris-ethylacetate (TEA). Complexes of the divalent transition metals Co(II), Ni(II), Cu(II) containing these ligands have been prepared. The kinetics of the reactions of [Co n (TEA)H20] 2 + and [Co II (TCTA)]-(TCTA= 1,4,7-triazacyclononane-N^^N'^tris-acetate) with [Fe m (CN)6] 3 ~, respectively, have been measured. A stable binuclear [Co(TEA)(CN)6Fe]~ species has been characterized in solution whereas the reaction of [Co(TCTA)]-with [Fe(CN)6] 3 -yields [Co in TCTA] and [Fe(CN)6] 4 -via an outer-sphere electron transfer reaction (k = 5,9 x 10 3 1 mol -1 sec -1 ; 25 °C, I = 0,26 M). Na[Ni(TES)H20] • 5H20 crystallizes in the triclinic space group P I (C^-No 2) with cell constants a = 806,7(4), b = 1468,4(8), c = 2317,9(8) pm, a = 72,36(4)°, ß = 83,48 (3)°, y = 81,99(4)°, and Z = 4. The nickel(II) center is in a distorted octahedral environment of a pentadentate TES ligand (N3Ü2)_and a coordinated H20. Na[Cu(TES)] 3H20 crystal-lizes in the triclinic space group P I (C^-No 2) w T ith cell constants a = 747,3(3), b — 1082,6(5), c = 1459,3(9) pm, a = 81,13(5)°, ß = 84,75(4)°, y = 79,39(3)°, and Z = 2. The copper(II) center is in a distorted quadratic pyramidal environment of a pentadentate TES ligand. Each of the complex anions contains one uncomplexed CH2-CH2-SC>3 _ group. 
  Reference    (Z. Naturforsch. 38b, 81—89 [1983]; eingegangen am 27. September 1982) 
  Published    1983 
  Keywords    Crystal Structure, O-Coordinated R-S03-group, Metal Complexes 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0081.pdf 
 Identifier    ZNB-1983-38b-0081 
 Volume    38 
11Author    Hans-Jörg Deiseroth, Han Fu-SonRequires cookie*
 Title    Cs6Ga2Se6, ein ternäres Selenogallat(III) mit isolierten [Ga2Se6] 6 --Ionen Cs6Ga2Se6, a Ternary Selenogallate(III) with Isolated [Ga2Se6] 6_ Ions  
 Abstract    Cs6Ga2Se6 can be prepared from mixtures of Cs2Se and Ga2Se3. The transparent single crystals of the moisture sensitive compound (m.p. 685 °C) crystallize in the monoclinic system with a = 848.0(5), b = 1364.4(5), c = 1111.5(5) pm, ß = 126.22(5)° (T = —150 °C, Z — 2, space group P2i/c). The gallium atoms pairwisely occupy selected tetrahedral holes between layers formed by the cesium and selenium ions. This structural principle leads to the formation of double tetrahedral isolated [Ga2Se6] 6-ions. 
  Reference    Z. Naturforsch. 38b, 181—182 (1983); eingegangen am 15. Oktober 1982 
  Published    1983 
  Keywords    Cesium Selenogallate, Crystal Structure, Thermal Properties 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0181.pdf 
 Identifier    ZNB-1983-38b-0181 
 Volume    38 
12Author    Dieter Weber, Karl Peters, Hans Georg, Schnering, Ekkehard FluckRequires cookie*
 Title    Kristallstruktur yon Pyrrolidinium-bis(diisopropylphosphinoyl)phosphid, einem System mit zweifach koordiniertem Phosphor Crystal Structure of Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide, a System with Bicoordinated Phosphorus  
 Abstract    Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide crystallizes triclinically in the space group Pi with a = 1019.6(8), b = 1271.5(4), c = 999.5(7) pm, a = 100.90(5)°, ß = 91.24(5)°, y = 99.10(5)° and Z = 2 formula units. The mean P-P bond length is 212.2 pm and hence shorter than in derivates in which the electron pairs of the bicoordi-nated phosphorus atom are bonded to one or two M(CO)5-groups. Additional p.-z-d* bonding explains the shortening of the P-P bond. 
  Reference    Z. Naturforsch. 38b, 208—211 (1983); eingegangen am 13. Oktober 1982 
  Published    1983 
  Keywords    Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide, Crystal Structure, NMR Spectra 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0208.pdf 
 Identifier    ZNB-1983-38b-0208 
 Volume    38 
13Author    W. Urland, E. WarkentinRequires cookie*
 Title    Darstellung and Kristallstruktur  
 Abstract    von [(C6H5)4As]2M(N03)5 (M = Ho, Er, Tm, Yb) Preparation and Crystal Structure of [(C6H5)4As]2M(N03)5 (M = Ho, Er, Tm, Yb) The compounds [(C6H5)4As]2M(N03)5 (M = Ho, Er, Tm, Yb) were prepared and in-vestigated by X-ray diffraction. It has been found that they are isotypic with [(CeH5)4As]2Eu(N03)5. The structure was refined by single crystal data for [(C6H5)4Asj2Er(N03)5. 
  Reference    Z. Naturforsch. 38b, 299—302 (1983); eingegangen am 29. November 1982 
  Published    1983 
  Keywords    Preparation, Pentanitrates of Lanthanides, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0299.pdf 
 Identifier    ZNB-1983-38b-0299 
 Volume    38 
14Author    Achim Müller, Winfried Hellmann, Uwe Schimanski, Rainer Jostes, WilliamE. NewtonRequires cookie*
 Title    On the Central Role of Sulfur in Multi Metal Aggregates with Different Electron Populations: [S2WS2CoS2WS2]' 1 - (n -2, 3)  
 Abstract    The hetero metal sulfur aggregates [Co(WS4)2] n ~ (with variable electron popula-tion: n = 2, 3) could be isolated as salts and characterized by physical measurements (in-cluding X-ray structure analysis). Experimental and theoretical investigations show that due to a strong metal -> ligand electron delocalisation WS4 2-(like M0S4 2 -) is a non-innocent ligand and that the additional charge upon reduction is located mainly at the S atoms of the ligand system. 
  Reference    Z. Naturforsch. 38b, 528—529 (1983); eingegangen am 12. November 1982 
  Published    1983 
  Keywords    Preparation, Crystal Structure, Molecular Structure, Electronic Structure, Thioanions 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0528_n.pdf 
 Identifier    ZNB-1983-38b-0528_n 
 Volume    38 
15Author    Ulrich Müller, Paul KlingelhöferRequires cookie*
 Title    /3-NbBr5, eine neue Modifikation von Niobpentabromid mit einer eindimensionalen Lagenfehlordnung ß-NbBrs, a New Modification of Niobium Pentabromide Having One-Dimensional Stacking Disorder  
 Abstract    While trying to react NbBrs with sulfur in a closed tube, crystals of the new modification /?-NbBra were obtained. Its X-ray diffraction patterns have sharp reflexions and diffuse streaks showing the presence of a one-dimensional disorder. From the sharp reflexions alone, a statistically averaged sub-structure results; it has the space group Ccmm and the lattice constants ao = 644, bo = 1867 and Co = 615 pm. Taking into account the diffuse streaks, the true structure was deduced; its lattice constants are a = 2ao, c = Co, b indefinite due to the disorder. /?-NbBrs is isostructural to tantalum pentaiodide. It consists of layers of (NbBrs)2 molecules that are stacked with displacement faults in the direction of b. The bromine atoms have a hexagonal close-packing arrangement. 
  Reference    Z. Naturforsch. 38b, 559—561 (1983); eingegangen am 25. Januar 1983 
  Published    1983 
  Keywords    Niobium Pentabromide, Crystal Structure, Stacking Faults 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0559.pdf 
 Identifier    ZNB-1983-38b-0559 
 Volume    38 
16Author    Gerhard Thiele, Kurt WittmannRequires cookie*
 Title    Über Hydraziniumsalze von Iodoplatinaten On Hydrazinium Salts of Iodoplatinates  
 Abstract    The new compounds (N2H5)2Ptl6 and (^Hs^Ptls • H2O were obtained by reaction of H2PtCl6 with N2H5CI and HI in aqueous solutions. In the crystal structure of the ortho -rhombic bis[hydrazinium(+I)]hexaiodoplatinate(IV) (^Hs^Ptle the N2H5+ cations and Ptlö 2-anions build up a K^PtClß-like arrangement. Bis[hydrazinium(+I)]pentaiodo-platinate(II,IV)hydrate, (N2Hs)2Ptl5 • H20, is classed with the group of linear chain mixed-valence platinum complexes which have highly anisotropic properties. In the crystal structure are structurally undistinguishable Ptl4-units (Pt-I = 264 pm) connected by asymmetric I-bridges (Pt-I = 270 pm and 338 pm) to 1 [Ptl4l2/2] chains. 
  Reference    Z. Naturforsch. 38b, 674—679 (1983); eingegangen am 15. Februar 1983 
  Published    1983 
  Keywords    Iodoplatinates, Hydrazinium Salt, Mixed-Valence Compound, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0674.pdf 
 Identifier    ZNB-1983-38b-0674 
 Volume    38 
17Author    H.-J Kraus, H. Werner, C. KrügerRequires cookie*
 Title    Synthese und Struktur von C5Me5Pd(PR3)X: Palladiumkomplexe mit einem unsymmetrisch gebundenen Pentamethylcyclopentadienylring [ 1 ] Synthesis and Structure of CsMe5Pd(PR3)X: Palladium Complexes with an Unsymmetrically Bonded Pentamethylcyclopentadienyl Ring [1]  
 Abstract    The complexes C5Me5Pd(PR3)X (1-4) are prepared from [Cl(PR3)Pd]2(iM-OCOCH3)2 and TICsMes. Attempts to replace the halide ligand by a second CsMes or a C5H5 unit remained unsuccessful. The X-ray structure analysis of C5MesPd[P(i-Pr)3]Cl (3) indicates that the five-membered ring shows a tendency of »^-bonding towards the metal. Das Interesse an Pentamethylcyclopentadienyl-metall-Verbindungen ist in den letzten Jahren stän-dig gestiegen, nachdem an zahlreichen Beispielen gezeigt werden konnte, daß die Einführung des CsMes-an Stelle des CsHs-Liganden eine Zunahme der Stabilität der Ring-Metall-Bindung bewirkt [2], In der Reihe der Platinmetalle sind Komplexe mit CsMes vor allem von Rhodium und Iridium darge-stellt und auch strukturell charakterisiert worden; die Arbeiten von P. M. Maitlis und seiner Gruppe haben hier bahnbrechend gewirkt [3]. Im Vergleich dazu ist nur relativ wenig über Pentamethylcyclopentadienylpalladium-Verbindun-gen bekannt. Wir hatten kürzlich gefunden [4], daß bei der Umsetzung der Acetat-verbrückten Zwei-kernkomplexe [Cl(PR3)Pd]2(//-OCOCH3)2 mitTICsHö die Verbindungen (^ 5 -C5H5)Pd(?? 1 -C5H5)PR3 entste-hen, die in Lösung ein fluktuierendes Verhalten zei-gen. Aufgrund von !H-und 13 C-NMR-spektrosko-pischen Messungen sind zwei dynamische Prozesse nachweisbar, wobei der Prozeß mit der größeren Aktivierungsenergie ein nja-(bzw. rf/r] 1 -)-Aus-tausch der beiden unterschiedlich gebundenen Cy-clopentadienylliganden und derjenige mit der kleine-ren Altivierungsenergie eine metallotrope Umlage-rung ist. Die Koaleszenztemperatur für den 
  Reference    Z. Naturforsch. 38b, 733—737 (1983); eingegangen am 1. März 1983 
  Published    1983 
  Keywords    Pentamethylcyclopentadienylpalladium Complexes, Synthesis, Crystal Structure, Bonding Mode 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0733.pdf 
 Identifier    ZNB-1983-38b-0733 
 Volume    38 
18Author    Roland Schmidt, Wolfgang Hiller, Gerhardt PausewangRequires cookie*
 Title    Peroxofluorokomplexe der Übergangsmetalle, V [1-3]  
 Abstract    Kristallstruktur von K2Ti(02)F4 • H20 (orange) mit einem Di(/i-fluoro)diperoxo-hexafluorodititanat(IV)-Anion Transition Metal Peroxofluoro Complexes, V [1-3] Crystal Structure of K2Ti(02)F4 • HcO (orange) with a Di(J«-fluoro)diperoxo-hexafluorodititanate(IV) Anion Orange crystals of K2Ti(02)F4 ' H20 have been obtained from aqueous solution. The crystal structure (space group P2i/n, a = 604.3(3), b = 1424.6(4), c = 761.0(2) pm, ß = 103.98°, Z = 4, dc = 2.63 gem-3 , dm = 2.62 gem-3 , R = 0.051 for 2257 independent reflections) shows isolated di(ja-fluoro)-bridged [Ti2(02)2Fg] 4 -anions, which are inter-connected by hydrogen bonded H20 forming infinite chains. 
  Reference    Z. Naturforsch. 38b, 849—851 (1983); eingegangen am 17. März 1983 
  Published    1983 
  Keywords    K2Ti(02)F4 @BULLET H20, Crystal Structure, Preparation, Properties 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0849.pdf 
 Identifier    ZNB-1983-38b-0849 
 Volume    38 
19Author    Brigitte Eisenmann, Herbert Schäfer, Heike SchrodRequires cookie*
 Title    Über das o-Natriumtelhirostannat(rV) Na4SnTe4 On the o-Sodium-tellurostannate(IV), Na4SnTe4  
 Abstract    The new compound Na4SnTe4 crystallizes in the orthorhombic system, space group P2i2i2i with lattice constants a = 865.8(5) pm, 6 = 884.0(5) pm, and c = 1526.9(8) pm. In the structure there are isolated SnTe4 4 ~-tetrahedra. In seinen binären Chalkogenverbindungen tritt das Zinn gegenüber 0, S und Se in den beiden Oxi-aationsstufen 11+ und IV + auf, während mit Tellur bisher nur das SnTe charakterisiert werden konnte. Auch in ternären Telluriden ist mit Aus-nahme des AggSnTee [1, 2] und des K2SnTe5 [3] Zinn in der Oxidationsstufe IV+ gegenüber Tellur unbekannt. Es überrascht daher, daß sich die Ver-bindung Na4SnTe4, wie wir jetzt fanden, in glatter Reaktion aus den Elementen synthetisieren läßt. Darstellung Zur Darstellung wurden die Elemente in stöchio-metrischen Anteilen unter feuchtigkeits-und sauer-stofffreier Argonatmosphäre in eine bei 150 °C vor-getrocknete Quarzampulle eingewogen. Dabei mußte das Natrium, um den Verlust durch die Reaktion mit dem Gefäßmaterial auszugleichen, nach empi-rischem Befund im Überschuß von ca. 15 Gew.-% zugesetzt werden. Die Ampullen wurden eva-kuiert, abgeschmolzen und in mit Argon gefüllten 
  Reference    Z. Naturforsch. 38b, 921—923 (1983); eingegangen am 17. Mai 1983 
  Published    1983 
  Keywords    o-Sodiumtellurostannate(IV), Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0921.pdf 
 Identifier    ZNB-1983-38b-0921 
 Volume    38 
20Author    Ali Mahan, Albrecht MewisRequires cookie*
 Title    A B2X2 -Verbindungen mit CaAl2Si2-Struktur, IX [1] Compounds with the CaAl2Si2 Structure, IX [1]  
 Abstract    The compounds ZrCu2P2, YZnCuP2, LaZnCuP2, and CeZnCuP2 have been prepared and their structures have been determined. They are isotypic and crystallize trigonally in the CaAl2Si2-type structure (space group P3m 1) with the lattice constants: ZrCu2P2 a = 381,2(1) pm, c = 617,1(2) pm, YZnCuP2 a = 398,3(1) pm, c = 652,3(2) pm, LaZnCuP2 a = 408,2(1) pm, c = 674,2(2) pm, CeZnCuP2 a = 406,4(1) pm, c = 669,7(2) pm. 
  Reference    Z. Naturforsch. 38b, 1041—1045 (1983); eingegangen am 13. Mai 1983 
  Published    1983 
  Keywords    Ternary and Quaternary Phosphides, Copper, Zinc, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1041.pdf 
 Identifier    ZNB-1983-38b-1041 
 Volume    38 
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