Go toArchive
Browse byFacets
Bookbag ( 0 )
'X Ray' in keywords
Results  269 Items
Sorted by   
Publication Year
2001 (1)
1998 (1)
1997 (14)
1996 (17)
1995 (17)
1994 (17)
1993 (13)
1992 (16)
1991 (11)
1990 (3)
161Author    Matthias Moll, Behrens* Werner Helmut, Günther Popp, WolfPeter Liehr, FehlhammerRequires cookie*
 Title    Über das [C7H7Fe2(CO)5]--Anion (C7H7 = Cycloheptatrienyl) About the [C7H7Fe2(CO)5]--Anion (C7H7 = Cycloheptatrienyl)  
 Abstract    The extremely unstable anionic complex [C7H7Fe2(CO)6]~ (C7H7 = cycloheptatrienyl) which decomposes in polar solvents under CO elimination to give [C7H7Fe2(CO)s]~ can be prepared by deprotonation of C7H8Fe2(CO)6 (C7H8 = cycloheptatriene) with NaN(SiMe3)2 in CßHe-The NMR spectra of [C7H7Fe2(CO)5]~ show the highly fluctional character of this anion in solution. The X-ray structural parameters of Ph4As[C7H7Fe2(CO)5] (space group P2i/n) can be interpreted in terms of a rotation of the tub shaped C7H7 ring against the CO bridged Fe2(CO)5 fragment in the solid state. Consequently, each iron atom is alternatingly rj 3 -or ^-coordinated to the allyl anion and the diene part, respectively, of the anionic 8n system of the cycloheptatrienyl ring. 
  Reference    Z. Naturforsch. 38b, 1446—1453 (1983); eingegangen am 7. Juni 1983 
  Published    1983 
  Keywords    Cycloheptatrienyl Pentacarbonyl Diferrate, IR Spectra, NMR Spectra, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1446.pdf 
 Identifier    ZNB-1983-38b-1446 
 Volume    38 
162Author    Ulrich Schubert, Klaus Ackermann, Gertraud Kraft, Barbara WörleRequires cookie*
 Title    Hydrido-Silyl-Komplexe, IV [1] Strukturelle Änderungen in Hydrido-Silyl-Komplexen  
 Abstract    infolge Si-H-Wechselwirkung; Strukturvergleich von (^CH3C5H4)(CO)2Mn(H)SiCl3 und trans-(n-CH3C5H4)(CO)2Mn(SiCl3)2 Hydrido Silyl Complexes, IV [1] Structural Changes in Hydrido Silyl Complexes Due to Si-H Interaction; Comparison of the Structures of (7t-CH3CöH4)(CO)2Mn(H)SiCl3 and *ra7is-(7r-CH3C5H4)(CO)2Mn(SiCl3)2 The main difference between the structures of MeCp(CO)2Mn(H)SiCl3 (1) and MeCp(CO)2Mn(SiCl3)2 (2) is that in 1 the SiCl3 ligand is tilted relative to the Mn-Si vector, due to Mn-H-Si three-center two-electron bonding. Mn-Si: 225.4(1) in 1, 232.0(2) pm in 2. Comparison of the structures of MeCp(CO)2Mn(H)SiR3 complexes shows that the Mn-Si distance and the tilt angle of the SiR3 group increases as Si-H interaction increases. A stereochemical pathway of the oxidative addition of HSiR3 to the CpMn(CO)3 fragment is suggested. 
  Reference    Z. Naturforsch. 38b, 1488—1492 (1983); eingegangen am 17. Mai 1983 
  Published    1983 
  Keywords    Silyl Metal Complexes, Three-Center Bonding, Si-H Interaction, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1488.pdf 
 Identifier    ZNB-1983-38b-1488 
 Volume    38 
163Author    KlausR. Pörschke, RichardM. Ynott, Carl Krüger, M. J. Rom, Herrn ProfRequires cookie*
 Title    Tris(phosphan)-Nickel(0)-Ethen  
 Abstract    Komplexe (dmpe)(PR3)Ni(C2H4). Molekülstruktur des (dmpe)(P0 3)Ni(C2H4) Tris(phosphane)-nickel(0)-ethene Complexes (dm pe)(PR 3)Ni(C2FI4). M olecular Structure of (d m p e)(P 0 3)Ni(C2F[4) Synthesis and properties of tris(phosphane)(ethene)nickel(0) complexes (dmpe)(PR3)Ni(C2H 4) (R = CH3 (4), c-C6H u (5), and C6H5 (6)) are reported. In solution. 4—6 are thermolabile and undergo ligand exchange reactions affording tetrakis(phosphane)nickel(0) and bis(phosphane)-(ethene)nickel(O) complexes. 1H , 13C, and 31P NMR data of 4 —6 confirm the tetrahedral geo­ metry around nickel. For 6 , the crystal and molecular structure has been determined by X-ray crystallography. 
  Reference    Z. Naturforsch. 39b, 1076—1081 (1984); eingegangen am 1. März 1984 
  Published    1984 
  Keywords    Ethene, Nickel(O), Phosphanes, NMR Characterization, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-1076.pdf 
 Identifier    ZNB-1984-39b-1076 
 Volume    39 
164Author    KlausR. Pörschke, Richard Mynott, Klaus Angermund, ++, Carl KrügerRequires cookie*
 Title    Neue Bis(phosphan)-nickel(0)-alkin-Komplexe New Bis(phosphane)-nickel(0)-alkyne Complexes  
 Abstract    (Me 3 P)2Ni(C 2 H4) (5) and (dmpe) 2 Ni2(C 2 H4)3 (6) react with various alkynes including ethyne (acetylene) and 1-alkynes to form the crystalline compounds (Me 3 P) 2 Ni(C 2 RR'), (dmpe)Ni(C 2 RR'), and (dmpe)2Ni 2 (C 2 R2) 2 (R.R' = H, Me, Ph). Structural assignments were made on the basis of : H, I3 C, and 31 P NMR data. The crystal and molecular structure of (dmpe)Ni(C 2 Ph 2) (17) has been determined by X-ray crystallography. 
  Reference    Z. Naturforsch. 40b, 199—209 (1985); eingegangen am 15. Oktober 1984 
  Published    1985 
  Keywords    Alkynes, Nickel(O), Phosphanes, NMR Spectra, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0199.pdf 
 Identifier    ZNB-1985-40b-0199 
 Volume    40 
165Author    Henri Brunner, Walter Meier, Joachim Wächter, Heike Pfisterer, ManfredL. ZieglerRequires cookie*
 Title    Synthese von PR3 (R = Ph, OMe) substituierten Cubanclustern vom M2M'2S4-Typ und Molekülstruktur von (C5Me5)2Cr2Co2{P(OM e)3 }2(iM 3-S)4 Synthesis of PR3 (R = Ph, OMe) Substituted Cubanlike Clusters of the M2M'2S4-Type and Molecular Structure of (C5Me5)2Cr2Co2{P(OMe)3}2(u3-S) 4  
 Abstract    The reaction o f the cubane cluster (C 5M e5)2Cr2C o2(CO)2S4 with PR3 (R = Ph, O M e) re­ 
  Reference    Z. Naturforsch. 40b, 923 (1985); eingegangen am 16. März 1985 
  Published    1985 
  Keywords    H eterom etallic Cubane Cluster, Sulfur B ridged, CO -Substitution, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0923.pdf 
 Identifier    ZNB-1985-40b-0923 
 Volume    40 
166Author    Michael Zettlitzer, Heindirk Tom Dieck, Lutz StampRequires cookie*
 Title    Reactions of N-Silated Endiamines, I Transition Metal Complexes of l,3-Diaza-2-sila-4-cyclopentenes  
 Abstract    1,3-Diaza-2-sila-4-cyclopentenes 1 (D ISC), which are electron-rich and easily oxidizable ole­ fins, form strongly coloured, but poorly soluble 1:1 adducts with cuprous halides, while silver trifluoromethylsulfonate oxidizes 1. Much more soluble and again strongly coloured complexes of stoichiometry LPdX2, (L)15PdX2 and L 2PdX2 are formed from 1 and palladium halides. The well-crystallizing adduct (PdCl-,-L)o 3a was chosen for an X-ray structure analysis (monoclinic, space group P 21c; a = 10.215(3), b = 14.681(3), c -23.642(5) A , ß = 101.31(2)°; Z = 8 ; R = 0.054), which revealed an almost planar D ISC ligand in an oblique ?z2(C=C)-coordination relative to the 7r-plane. Structural data and rather peculiar spectroscopic properties encourage a comparison of 3a with complexes, in which an electron-rich olefin is split to give a bis(carbene) ligand system. The electronic reasons for the splitting of electron-rich olefins at d8 metals are discussed under symmetry considerations. 
  Reference    Z. Naturforsch. 41b, 1230—1238 (1986); eingegangen am 12. Februar/9. Juni 1986 
  Published    1986 
  Keywords    Endiamines, Palladium Complexes, X-Ray, Electron-Rich Olefins, Carbene-Type Complexes 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-1230.pdf 
 Identifier    ZNB-1986-41b-1230 
 Volume    41 
167Author    D. Ieter, F. Enske, PaulM. Aue, K. Urt, M. Erzw EilerRequires cookie*
 Title    Zur  
 Abstract    Reaktion von (f/5-C5H 5)F e(C O)2Br mit Se(SiM e3)2 D ie Kristallstruktur von [S e{F e(C O)2(C5H 5)} 3]2[Fe4Se4Br4] R eaction of (^ -C s H ^ F e ^ O ^ B r with Se(SiM e3) 2 T he C rystal S tructure of [Se {F e (C O)2 (C 5 H 5) } 3 ]2 [Fe4Se4 B r4] 
  Reference    Z. Naturforsch. 42b, 928 (1987); eingegangen am 17. Februar 1987 
  Published    1987 
  Keywords    Synthesis, X -Ray, Crystal Structure of [Fe4Se4B r4]2~-Cluster 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0928_n.pdf 
 Identifier    ZNB-1987-42b-0928_n 
 Volume    42 
168Author    Joachim FuchsRequires cookie*
 Title    Kristallstrukturen und Schwingungsspektren zweier  
 Abstract    isomerer Oktadekawolframatodiarsenate, (NH4)6As2W180 62 • #iH20 C rystal S tructures and V ibrational Spectra of Tw o Isom ers of O ctadecatungsto-diarsenate (N H 4)6A s2W 18 0 6 2 • mH20 H o lg er N eu b e rt Six possible structures of A s2W ,80 626~ are discussed, and an exact nom enclature is proposed. The structures of the isomeric title compounds (I and II) were determ ined by X-ray diffraction. I crystallizes in space group P I with lattice param eters a = 12.965(4), b = 14.803(5), c = 18.515(6) Ä; a = 96.280(23)°, ß = 91.420(25)°, y — 115.320(25)°. The anion has the configuration first observed in K6P2W ,80 62-14 H 20 (D awson-structure). II was not known until now. It crystal­ lizes in the trigonal space group R 3 with lattice param eters a — b — 37.857(32). c = 13.108(13) Ä; a — ß = 90°, y = 120°. The structure of this anion differs from the D awson-structure by the 60° rotation of both polar groups of three W 0 6-octahedra (/3-type), followed by the 60° rotation of one of the two new AsWyO,,-units. Both rotations are about the 3-fold axis. The anion is centrosym m etric. Vibrational spectra and preparation of the isomers are described. 
  Reference    Z. Naturforsch. 42b, 951—958 (1987); eingegangen am 4. März/11. Mai 1987 
  Published    1987 
  Keywords    T ungstoarsenates, Isomers, X-Ray, V ibrational Spectra, Preparation 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0951.pdf 
 Identifier    ZNB-1987-42b-0951 
 Volume    42 
169Author    W. Milius, A. RabenauRequires cookie*
 Title    The Crystal Structure of CuSe 2 Cl  
 Abstract    The crystal structure of CuSe2Cl has been deter-mined by single-crystal X-ray diffraction. CuSe2Cl crystallizes monoclinically in space group P2,/c with the lattice parameters a = 768.3(9) pm, b = 462.5(5) pm and c = 1455.2(3) pm, ß = 135.2(4)°, Z = 4. The structure could be shown to be isotypic with CuTe2Cl. 
  Reference    Z. Naturforsch. 43b, 243—244 (1988); received October 21 1987 
  Published    1988 
  Keywords    Copper Chalcogen Halides, Crystal Structure of CuSe2Cl, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0243_n.pdf 
 Identifier    ZNB-1988-43b-0243_n 
 Volume    43 
170Author    Bruno Lunelli, Magda MonariRequires cookie*
 Title    Molecular and Crystal Structure of Two Cyclobuten-3,4-dione Derivatives: The Dithallium Salt of 1,2-Dicyanimino-(T12CMCB) and the l,2-Diiodocyclobuten-3,4-dione (I2 CB)  
 Abstract    The crystal and molecular structure o f the dithallium salt of the 1,2-dicyanim inocyclobuten-3,4-dione dianion and o f 1,2-diiodocyclobuten-3,4-dione. determined by X-ray diffraction, are re­ ported and discussed. Results o f FT-IR and calorimetric m easurem ents are also presented. 
  Reference    Z. Naturforsch. 44b, 169 (1989); received March 18/May 30 1988 
  Published    1989 
  Keywords    M olecular Structure, C yclobutendiones, Radical Precursors, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-0169.pdf 
 Identifier    ZNB-1989-44b-0169 
 Volume    44 
171Author    PeterG. Jones, Anke Meyer, Reinhard Schmutzler, FrauM. Prof, BeckeRequires cookie*
 Title    Uber die Darstellung neuer spirocyclischer N,N'-Dimethylsulfamid-substituierter Phosphorverbindungen und N,N'-DimethyIsulfamid-verbrückter Diphosphorverbindungen The Preparation of New Spirocyclic N,N'-Dimethylsulphamide-Substituted Phosphorus Compounds, and of Some N,N'-Dimethylsulphamide-Bridged Diphosphorus Compounds  
 Abstract    The reactions of 4-chloro-l,3,5,7-tetramethyl-2,2,6,6-tetraoxa-2,6-dithia-l,3,5,7-tetraaza-4x:'-phosphaspiro[3.3]heptane (1) with trimethylsilyl compounds and sodium azide led to a series of spirocyclic N,N'-dimethylsulphamide-substituted phosphoranes (2—5). The nature of the penta-aza-spirophosphorane (4) was confirmed by an X-ray crystal structure determination (C2/c, a = 991.8(4), b = 1185.6(6), c = 1224.9(5) pm ,ß= 108.64(3)°, Z = 4, R = 0.041 for 1065 unique observed reflections); a crystallographic twofold axis passes through phosphorus and the nitrogen atom of the NMe2 group. The geometry at phosphorus is to a good approximation trigonal bipyramidal. The azido-spirophosphorane (5) undergoes Staudinger-type reactions with phosphorus(III) com­ pounds (PPh3, dppm) to form the mixed-valence phosphorus compounds 6—8 . The reaction of N,N'-dimethylsulphamide or N,N'-dimethyl-N,N'-bis(trimethylsilyl)-sulphamide with dichloro-phosphines RPC12 (R = Me, Ph) in a molar ratio 1:2 leads to the formation of the acyclic N,N'-dimethylsulphamide-bridged diphosphorus compounds 9 and 10, respectively. The spectro­ scopic properties (and, for 4, the X-ray crystal structure) of the products are compared with those of analogous urea-bridged phosphorus compounds. 
  Reference    Z. Naturforsch. 45b, 175 (1990); eingegangen am 26. Juni/7. September 1989 
  Published    1990 
  Keywords    Spirophosphoranes, NN'-Dimethylsulphamide, X-Ray, Staudinger Reactions, Diphosphorus Compounds 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-0175.pdf 
 Identifier    ZNB-1990-45b-0175 
 Volume    45 
172Author    N. Ullrich, C. Stegmair, H. Keller, E. Herdtweck, F. R. KreißlRequires cookie*
 Title    Darstellung und Struktur kationischer i^-Thiocarbenkomplexe von Molybdän und Wolfram Synthesis and Structure of Cationic //2-Thiocarbene Complexes of Molybdenum and Tungsten  
 Abstract    The reaction o f dim ethyl(m ethylthio)sulfonium tetrafluoroborate [(CH-,)-,S-SCH3][BF4] with //;'-cyclopentadienyl(dicarbonyl)carbyne com plexes o f molybdenum and tungsten Cp(CO)2M = C -R (M = M o. W; R = C H ,, C6H 5, C6H4C H 3) lc , 2 a ~ d results in an electrophilic attack o f the SCH, moiety at the metal carbon triple bond, providing orange to red, diam ag­ netic, cationic //--thiocarbene com plexes [Cp(CO):M = C(R)$CH,J[BF4] 3c, 4 a ~ d in high yields. The new com pounds were identified by X-ray structure analysis, N M R , IR and mass spectra. 
  Reference    Z. Naturforsch. 45b, 921 (1990); eingegangen am 9. November 1989 
  Published    1990 
  Keywords    Cationic ^-T hiocarbene Complexes, M olybdenum Tungsten, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-0921.pdf 
 Identifier    ZNB-1990-45b-0921 
 Volume    45 
173Author    N. Orbert, K. Uhna, Michael Schulten3, Roland Boeseb, Dieter BläserbRequires cookie*
 Title    Synthese und Struktur von l,3?6,8-Tetra-terf-butylcarbazol  
 Abstract    The synthesis o f 1,3,6,8-tetra-/er/-butylcarbazole (2) by the reaction o f carbazole with tert-butyl chloride in the presence o f aluminium chloride is reported. The X-ray structures o f 2 and its diethyl ether adduct are compared. The gap formed by the ter/-butyl groups in 1,8-position has been calculated and compared with that o f the supermesithyl substituent. 
  Reference    Z. Naturforsch. 46b, 1503—1508 (1991); eingegangen am 4. April 1991 
  Published    1991 
  Keywords    l, 3, 6, 8-Tetra-?m -butylcarbazole, Synthesis, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1503.pdf 
 Identifier    ZNB-1991-46b-1503 
 Volume    46 
174Author    Dieter Sellmann, Stefan Fünfgelder, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, LXXVI* Redox-und Additionsreaktionen von Nickelkomplexen mehrzähniger Thioether-Thiolat-Liganden. Röntgenstrukturanalysen von (N M e4)2 [Ni('S2')2 l und INi('S4-C 3 /)(PM e3)]** Transition M etal Complexes with Sulfur Ligands, LXXVI* Redox and Addition Reactions of Nickel Complexes with M ultidentate Thioether-Thiolato Ligands. X-Ray Structure Determinations of (N M e ^ fN ^ 'S ^ j] and [Ni('S4-C 3')(PM e3)]*  
 Abstract    In order to elucidate specific properties o f nickel sulfur com plexes, redox and addition-elim-ination reactions o f [Ni('OS4')]2, [N i('N HS4')]2, [Ni('S5')], [Ni('S4-C 5')]2 and [Ni('S4-C 3')] were investigated ('OS4'2-= 2,2'-bis(2-m ercaptophenylthio)diethylether(2-), 'N HS4'2~ = 2,2'-bis(2-m ercaptophenylthio)diethylam ine(2-), 'S5'2-= 2,2'-bis(2-mercaptophenylthio)diethylsul-fid e (2 -), 'S4-C 5'2-= 1,5-bis(2-m ercaptophenylthio)pentane(2-), 'S4-C 3'2-= l,3-bis(2-m er-captophenylthio)propane(2-)). Cyclovoltammetry proves the complexes to be redox inactive between -1 .4 and +0.8 V vs. N H E. A bove +0.8 V the complexes are irreversibly oxidized, below -1 , 4 V desalkylation takes place and [Ni('S2')2]2" is formed. An X-ray structure analysis was carried out o f (N M e4)2[Ni('S2'):>], which shows a planar anion with the Ni center in a nearly perfect square planar coordination. Distances and angles are practically identical to those in the [Ni('S2')2] m onoanion. The complexes coordinate only phosphines as coligands, but thioether donors simulta­ neously decoordinate and, dependant o f reaction temperature, m ono-or trisphosphine com ­ plexes are formed. [Ni('S4-C 3')(PM e3)] was characterized by X-ray structure analysis and ex­ hibits a square pyramidal coordination geometry. 
  Reference    Z. Naturforsch. 46b, 1601—1608 (1991); eingegangen am 13. Mai 1991 
  Published    1991 
  Keywords    Nickel Sulfur Complexes, Redox and Addition Reactions, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1601.pdf 
 Identifier    ZNB-1991-46b-1601 
 Volume    46 
175Author    Peer Berges, Volker Mansei, G. Ünter KlarRequires cookie*
 Title    Elementorganische Verbindungen mit ö-Phenylenresten, XXIII [1]  
 Abstract    2.3.6.9.10.13-Hexam ethoxy-5,7,12,14-tetrathia-5,7,12,14-tetrahydropentacen -2.3-Dichlor-5,6-dicyan-l,4-benzochinon (1/2) Organometalloidal Com pounds with o-Phenylene Substituents, XXIII [1] 2.3.6.9.10.13-Hexamethoxy-5,7,12,14-tetrathia-5,7,12,14-tetrahydropentacene -2.3-Dichloro-5,6-dicyano-1,4-benzoquinone (1 /2) The title com pound is prepared by com bining hot solutions o f the components. X-ray anal­ ysis shows hexam ethoxytetrathiatetrahydropentacene to act as a bifunctional donor, each o f its dimethoxybis(organylthio)benzene units being in contact with a dichlorodicyanoquinone molecule. In the crystal stacks o f the type D A 2 ,D A 2, with an alternating arrangement o f d o­ nor and acceptor molecules are formed. In the com plex the donor has a m -conform ation (boat form) in contrast to its pure form where the /ra/w-conformation (chair form) is found. 
  Reference    Z. Naturforsch. 47b, 211 (1992); eingegangen am 26. August 1991 
  Published    1992 
  Keywords    Hexamethoxytetrathiatetrahydropentacene, Bifunctional D onor, D ichlorodicyanoquinone, Crystal Structure, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0211.pdf 
 Identifier    ZNB-1992-47b-0211 
 Volume    47 
176Author    R. Castro, M.L D Urá, J.A G Arcía-Vázquez, J. Rom, A. Sousa, A. C. Astiñeiras, W. Hiller, J. SträhleRequires cookie*
 Title    Direct Electrochemical Synthesis of Pyrimidine-2-thionato Complexes of Zinc(II) and Cadmium(II): The Crystal Structure of (l,10-Phenanthroline)bis(pyrimidine-2-thionato)cadmium(II)  
 Abstract    Zn(pymt)2 and Cd(pymt)2 complexes have been obtained by electrochemical oxidation o f anodic zinc or cadmium in acetonitrile solutions o f pyrimidine-2-thione (Hpymt). W hen 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) was added to the electrochemical cell, the ad-ducts [M (pymt)2(bipy)], or [M(pymt)2(phen)] (M = Zn or Cd) were obtained. Crystals o f [Cd(pymt)2phen] are orthorhombic, with a = 9.882(2), b = 12.491(1), c = 16.513(2)A, space group P 2,2,2, and Z = 4. The cadmium atom has distorted octahedral geometry, and one ni­ trogen atom o f each pyrimidine-2-thiolato ligand is not coordinated. 
  Reference    Z. Naturforsch. 47b, 1067 (1992); received January 27 1992 
  Published    1992 
  Keywords    X -Ray, Cadmium Complexes, Pyrimidine-2-thione, Zinc Complexes 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1067.pdf 
 Identifier    ZNB-1992-47b-1067 
 Volume    47 
177Author    Hans Schum, Gert Adm, PaulT. BeurskensbRequires cookie*
 Title    Zum Koordinationsverhalten von Alkinen gegenüber dem [C5H5(P(OCH3)3)2Fe]+-Fragment: Bildung und Struktur carbonylfreier Halbsandwichkomplexe mit Alkin-und Vinylidenliganden Coordination Properties o f Alkynes towards the [C5H 5Fe(P(O C H 3)3)2]+ Fragment: Form ation and Structure o f Carbonylfree Halfsandwich Complexes with Alkyne and Vinylidene Ligands  
 Abstract    The alkyne containing halfsandwich complexes [C5H 5(P(O CH 3)3)2Fe(HC = CC6H 5)]PF6 (Ilia) and [C5H 5(P (0C H 3)3)2Fe(C H 30 2CC = C C 0 2C H 3)]PF6 (Illb) are accessible by thermal acetonitrile substitution from [C5H 5(P(OCH3)3)2Fe(N C C H 3)]PF6 (I) in the presence o f the al­ kyne. U pon standing in solution, Ilia isomerizes to give the isomeric phenylvinylidene com ­ plex [C5H 5(P(O CH 3)3)2Fe(C = C(C6H5)H)]PF6 (IV). The spectroscopic data are presented to­ gether with a discussion o f the X-ray structure determinations o f III b and IV. 
  Reference    Z. Naturforsch. 47b, 1125—1133 (1992); eingegangen am 22. Januar 1992 
  Published    1992 
  Keywords    C yclopentadienyliron-Phosphite Complexes, Alkyne Complexes, Alkyne-Vinylidene Isomerisation, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1125.pdf 
 Identifier    ZNB-1992-47b-1125 
 Volume    47 
178Author    JörgN. Euhausen+, Karl-Ludwig Stork, ElisabethP. Otthoff, W. Olfgang, TremelRequires cookie*
 Title    Synthese und Struktur von Nb0 89Fe0 93Te2 und Ta0,77Fe0990Te2 Synthesis and Structure of N b0 89Fe093Te2 and Ta077Fe090Te2  
 Abstract    N b0g9Fe093Te2 and T a0 77Fe0 90Te2 were prepared by chemical transport reactions. The crys­ tal structures of both com pounds were determined using X-ray single crystal methods. The structures of the layer com pounds N b0g9Fe093Te2 (P mna, Z = 2, a = 7.951(1) Ä, b = 7.241(1) Ä, c = 6.233(1) Ä) and T a077Fe0 90Te2 (P mna, Z = 2, a = 7.890(2) Ä, b = 7.252(2) Ä, c = 6.192(1) Ä) are based on a hexagonal close packing of Te atoms. Approximately one-half of the octahedral holes in this packing are occupied by N b (Ta) atoms, about one-quarter of the tetrahedral holes are occupied by Fe atoms. The relationship to the NiAs structure type is discussed. 
  Reference    Z. Naturforsch. 47b, 1203—1212 (1992); eingegangen am 21. April 1992 
  Published    1992 
  Keywords    Synthesis, X-Ray, M etal-Rich Layer Compounds, Early Transition Metal Tellurides 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1203.pdf 
 Identifier    ZNB-1992-47b-1203 
 Volume    47 
179Author    Harald Maelger, Falk Olbrich, Jürgen Kopf, Dirk Abein, Erwin WeissRequires cookie*
 Title    Synthese und Struktur der Basenaddukte von Kupfer(I)-Halogeniden mit Dimethylsulfid und Tetrahydrothiophen Synthesis and Crystal Structure of Lewis Base Adducts of Copper(I)-Halides with Dimethylsulfide and Tetrahydrothiophene  
 Abstract    Copper complexes o f the general formula [(CuX)a(L)J" with L = tetrahydrothiophene (THT) or dimethylsulfide (D M S) and X = Cl, Br or I are formed by direct reaction o f copper(I)halides with the corresponding ligands. All com pounds have been characterized by 
  Reference    Z. Naturforsch. 47b, 1276—1280 (1992); eingegangen am 20. Februar 1992 
  Published    1992 
  Keywords    X-Ray, Lewis Base Adducts, Copper(I)-Halides, Thioethers, Synthesis 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1276.pdf 
 Identifier    ZNB-1992-47b-1276 
 Volume    47 
180Author    Jörg Münzenberg, HerbertW. Roesky, M. Athias Noltemeyer, Susanne Besser, Regine Herbst-IrmerRequires cookie*
 Title    Synthese und struktureller Vergleich einiger TeIlur(IV)-Iminate Syntheses and Structural Com parison of Some Tellurium(IV) Iminates  
 Abstract    T e -N compounds with Ph;SN and Ph2CN ligands were synthesized by treating TeCl4, TeF4, and ArTeCl3 (Ar = p-M eO C6H4) with the corresponding silylated ligand precursors 1 and 5. The l25Te N M R spectra of the com pounds Cl3TeN SPh2 2, Cl2Te(NSPh2)2 3, ArTe(Cl2)NSPh2 4, Cl2Te(N CPh2)2 6, F2Te(N CPh2)2 7 and ArTe(Cl2)N C Ph2 8 have been deter­ mined. The X-ray structures of the com pounds 2 -Pyridin, 3 and 8 show Cl-bridged dimers in the solid state, while 6 and 7*0.5 MeCN are monomeric. In the diphenylsulfiminates 2-Pyridin and 3 short T e -N bond distances are found. 
  Reference    Z. Naturforsch. 48b, 199—208 (1993); eingegangen am 3. September 1992 
  Published    1993 
  Keywords    Diphenylsulfiminates, Diphenylketiminates, X-Ray, , 25Te N M R Spectra 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0199.pdf 
 Identifier    ZNB-1993-48b-0199 
 Volume    48 
Prev
...
6
7
8
9
10
...
Next