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1988 (51)
21Author    Roland Boese, Dieter Bläser, Wolfgang PetzRequires cookie*
 Title    [Fe(C0)  
 Abstract    4 C(0)NMe 2 ][C(NMe 2)3]; die erste Strukturbestimmung einer Organometallverbindung mit dem Carbeniumion [C(NMe 2) 3 ] + [Fe(C0) 4 C(0)NMe 2 ][C(NMe 2) 3 ]; the First Structure Determination on an Organometallic Compound with the Carbenium Ion [C(NMe 2) 3 ] + The crystal structure of the carbamoyl complex [(C0) 4 FeC(0)NMe 2 ][C(NMe 2) 3 ] (1) is de-scribed. It crystallizes in the triclinic space group PI (a = 7.876(3), b = 10.098(3), c = 12.067(5)Ä, a = 94.25(3), ß = 90.94(3), y = 97.30(3)°, Z = 2) and consists of independent ions. The cation has a planar CN 3 array with sp 2 hybridized C and N atoms. The carbamoyl group of the anion occupies an axial position in the trigonal bipyramidal environment of the iron atom. 
  Reference    Z. Naturforsch. 43b, 945—948 (1988); eingegangen am 26. Februar/14. April 1988 
  Published    1988 
  Keywords    Crystal Structure, Iron Complex, Carbamoyl Complex, Guanidinium Cation 
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 Identifier    ZNB-1988-43b-0945 
 Volume    43 
22Author    HerbertW. Roesky, Jürgen Schimkowiak, Mathias Noltemeyer, GeorgeM. SheldrickRequires cookie*
 Title    Über die Reaktion von Dicyan mit Cd(II)-Ionen Röntgenstrukturanalyse von [Cd{(CN)2} 2 S0 2 ][AsF 6 ] 2 The Reaction of Cyanogen with Cd(II) Ions X-Ray Structure Analysis of [Cd{(CN) 2 } 2 S0 2 ][AsF 6 ] 2  
 Abstract    Cd[AsF 6 ] 2 (1) reacts with cyanogen to yield [Cd{(CN) 2 } 2 S0 2 ][AsF 6 ] 2 (2). 2 crystallizes in the space group Pnma with cell constants a = 1475.2(3); b = 821.7(3); c = 1321.2(9) pm. The coordination sphere of cadmium consists of nine atoms (one oxygen, four fluorines and four nitrogens). Cyanogen forms polymeric links. 
  Reference    Z. Naturforsch. 43b, 949—951 (1988); eingegangen am 10. März 1988 
  Published    1988 
  Keywords    Crystal Structure, Metal Complexes, Liquid Sulfur Dioxide, Cyanogen 
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 Identifier    ZNB-1988-43b-0949 
 Volume    43 
23Author    Otto Mündt, Heinz Riffel, Gerd Becker, Arndt SimonRequires cookie*
 Title    Element—Element-Bindungen, IV [1] Molekül-und Kristallstruktur des Tetramethyldiphosphans und -diarsans Element—Element Bonds, IV [1] Molecular and Crystal Structure of Tetramethyldiphosphane and -diarsane  
 Abstract    The molecular and crystal structures of the isotypic compounds tetramethyldiphosphane 1 and -diarsane 2 have been determined by single crystal X-ray diffraction (monoclinic; C2/m; Z = 2; 1/2: -155/-144 °C\a = 540.6(2)/555.8(2); b = 1131.0(6)/l 136.7(6); c -602.5(2)/612.8(2) pm;/? = 97.31(3)/95.24(3)°;P-P 221.2(1)/As-As 242.9(1) pm). In accordance with the crystallographically imposed symmetry 2/m, the molecules adopt antiperiplanar conformation. Their crystal structures are closely related to those of the homologues tetramethyldistibane 3 [1] and -dibismuthane 4 [3]. As found for the latter compounds, the E —E units (E = P, As) are also aligned in linear chains, but the intermolecular E---E contacts (P-P 381/As---As 370 pm) do not allow any extended interaction between molecules, which otherwise would result in thermochromic effects. 
  Reference    Z. Naturforsch. 43b, 952—958 (1988); eingegangen am 29. Februar 1988 
  Published    1988 
  Keywords    Tetramethyldiphosphane, Tetramethyldiarsane, Conformation, Molecular Structure, Crystal Structure 
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 Identifier    ZNB-1988-43b-0952 
 Volume    43 
24Author    Harald Burger, Karl Hensen, Peter PickelRequires cookie*
 Title    Aluminiumbromid-Pyridiniumbromid-Verbindung: Kristallstruktur Kristallstrukturbestimmung von [Tris(pyridinium)bromid]bis(tetrabromoaluminat(III)) Crystal Structure Determination of [Tris(pyridinium)bromide]bis(tetrabromoaluminate(III))  
 Abstract    The compound [(PyH) 3 Br][AlBr 4 ] 2 is formed by melting stoichiometric amounts of AlBr/PyHBr in a ratio of 2:3. It crystallizes in the orthorhombic space group Pbca with lattice constants a = 1365.5(2), b = 1616.0(2), c = 2783.7(3) pm, Z = 8, D c = 2.21 g/cm 3 . The structure was solved from 2810 diffractometer measured intensities (Cu —K" radiation) and refined to /?".(F) = 0.071. The cation shows three pyridinium ions attached via N — H — Br hydrogen bonds to a central bromide ion. The N-Br distances are 321(1), 321(2) and 332(2) pm. 
  Reference    Z. Naturforsch. 43b, 963—965 (1988); eingegangen am 11. März 1988 
  Published    1988 
  Keywords    Aluminiumbromide, Pyridiniumbromide, Addition Compound, Crystal Structure 
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 Identifier    ZNB-1988-43b-0963 
 Volume    43 
25Author    Rüdiger Kniep, Heinz Jürgen Beister, Dieter WaldRequires cookie*
 Title    Polymorphie von Tellur(IV)-iodid Polymorphism of Tellurium(IV) Iodide  
 Abstract    Idiomorphous crystals of five different polymorphic modifications (a—e) of Tel 4 are simultane-ously grown from solutions of Tel 4 and concentrated HI in methanol by evaporating the solvent at room temperature. (5-TeI 4 is the only stable phase at normal conditions. Phase transformations of a-, ß-, y-and £-TeI 4 to the final stage (5-TeI 4 take place by heating and run through discrete intermediates. The observed graduations lead to a sequence y-, ß-, a-,_e-TeI 4 which indicates "increasing metastability". The crystal structures of a-TeI 4 (trigonal; P3ml; a = 4.228(2), c — 6.684(6) A, Z = 0.5; D v = 5.10 g/cm 3), /3-TeI 4 (orthorhombic; Pn2,m; a = 6.888(2), b = 14.539(3), c = 16.753(4) Ä, Z = 8; D r = 5.03 g/cm 3) and y-TeI 4 (monoclinic; P2,/c; a = 11.199(4), b = 13.599(4), c = 22.158(6) Ä,/3 = 98.10(3)°, Z = 16; D, = 5.05 g/cm 3) are related to the known crystal structure of d-TeI 4 . a-TeI 4 ("Teo.s^") is an isotype of the 2H-CdI : structure with random distribution of Te over the Cd-positions. The crystal structures of ß-, y-and d-TeI 4 contain discrete tetrameric molecules "(TeI 4) 2 (Tel3 + I _)2" which are generated by ordered distributions of Te over 1/4 of the octahedral holes of a 2H-(ß) and a 4H-sequence (y, d) of the nearly close packed iodine layers. A nearly cubic close packing of Iodine atoms is observed in the crystal structure of £-TeI 4 (tetragonal; 14,/amd; a = 16.875(6), c -11.829(5) Ä, Z = 16; D v = 5.01 g/cm 3). The ordered distribution of Te in 1/4 of the octahedral holes leads to tetrameric molecules "(Tel 3 + I~) 4 " in a cubanelike arrangement which, thus far, has been observed only in the crystal structures of TeCl 4 and TeBr 4 . The Madelung Parts of Lattice Energies, MAPLE, of ß-, y-, d-and £-TeI 4 are calculated. 
  Reference    Z. Naturforsch. 43b, 966—980 (1988); eingegangen am 11. April 1988 
  Published    1988 
  Keywords    Polymorphism, Crystal Structures, Binary Compounds, Tellurium(IV) Iodide 
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 Identifier    ZNB-1988-43b-0966 
 Volume    43 
26Author    Andre Du Bois, Walter AbrielRequires cookie*
 Title    Zur Stereochemie des freien Elektronenpaares in AX 6 E-Systemen, VIII* Statisch verzerrte Anionen in [H 3 N(CH2)3NH3]3(BiX 6 ) 2 (H 2 0) 2 mit X = Cl, Br On the Stereochemistry of the Lone-Pair Electrons in AX 6 E-Systems, VIII Statically Distorted Anion in [H 3 N(CH 2 )3NH 3 ]3(BiX 6 ) 2 (H 2 0) 2 with X = Cl, Br  
 Abstract    Using 293 K diffractometer intensity data, the crystal structures of fH 1 N(CH 2) 3 NH 3 ] 3 (BiX 6) 2 (H 2 0) 2 with X -Cl, Br have been determined by single crystal X-ray technique and refined to a final R w of 0.027 and 0.043, respectively. The structures are isotypic, space group P2,/c, Z = 2 with a = 14.415(1). b = 9.7401(7), c = 12.4609(9)Ä, ß = 105.997(8)°for X — Cl and a = 14.794(2), b = 10.127(2), c = 12.853(2)Ä, ß = 105.68(2)° for X -Br. Statically distorted BiX,, 3_ -octahedra confirm the symmetry rules for the stereochemistry of the lone pair electrons in AX ft E-systems. Basic structural data for all compounds containing BiX 6 3_ and SbX h 3 
  Reference    Z. Naturforsch. 43b, 1003—1009 (1988); eingegangen am 22. Februar 1988 
  Published    1988 
  Keywords    Lone Pair Electrons, Bismutates, Crystal Structure 
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 Identifier    ZNB-1988-43b-1003 
 Volume    43 
27Author    Wolfgang Blase, Gerhard CordierRequires cookie*
 Title      
 Abstract    NaGaSn, (trigonal; P3,12 (No. 151); a = 632.8(4), c = 617.0(3) pm, Z -1; d v = 5.33 g/cm 3) was grown from the melt. The crystal structure contains Ga and Sn atoms in a helical arrangement (six atoms per turn) along the c-axis direction. Interatomic bonding between neighbouring helices completes a distorted [2+2]-tetrahedral environment for every Ga/Sn position. The compound is classified in terms of the Zintl concept. 
  Reference    Z. Naturforsch. 43b, 1017—1019 (1988); eingegangen am 28. März 1988 
  Published    1988 
  Keywords    Gallides, Stannides, Crystal Structure, Zintl-Phases 
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 Identifier    ZNB-1988-43b-1017 
 Volume    43 
28Author    M. Buckley, S. T. Bramwell, P. Day, W.T A HarrisonRequires cookie*
 Title     
 Abstract    The crystal structure of potassium nickel arsenate. KNiAs0 4 has been determined by high resolution powder neutron diffraction at 30 K. The unit cell of KNiAs0 4 is rhombohedral. space group R3, with hexagonal cell constants, a = 4.97208(2) (Ä). c = 28.52606(10) (Ä). The com-pound is isomorphous with NaNiAs0 4 . 
  Reference    Z. Naturforsch. 43b, 1053—1055 (1988); received February 23. 1988 
  Published    1988 
  Keywords    Powder Neutron Diffraction, Crystal Structure, Potassium Nickel Arsenate 
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 Identifier    ZNB-1988-43b-1053 
 Volume    43 
29Author    Fritjof Schmock, Aida El-Kholi, Ulrich Müller, Kurt DehnickeRequires cookie*
 Title    Synthesis and Crystal Structure of PPh 3 Me[HS0 4 ]  
 Abstract    PPh 3 Me[HS0 4 ] was prepared by the reaction of (PPh,Me)I with silver sulfate in aqueous solution. OPPh : Me and benzene being the by-products. The title compound was characterized by its IR spectrum as well as by an X-ray structure determination (1730 observed independent reflexions, R = 0.043). Crys-tal data: a = 910.4(3). b = 1587.8(4), c = 1294.2(6) pm, ß = 105.52(3)°. space group P2,/c t Z = 4. The structure consists of PPh,Me® cations and of HOSO, 0 ions that are associated via strong hydrogen bonds to dimeric centrosymmetric units. 
  Reference    Z. Naturforsch. 43b, 1069—1071 (1988); eingegangen am 13. April 1988 
  Published    1988 
  Keywords    Triphenylmethylphosphonium Hydrogensulfate, Synthesis, IR Spectra, Crystal Structure 
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 Identifier    ZNB-1988-43b-1069_n 
 Volume    43 
30Author    W. Meske, D. BabelRequires cookie*
 Title    Kristallstrukturen von Octacyanomolybdaten(IV), I Ag 4 (NH 3 ) 5 Mo(CN) 8 * 1,5 H 2 0 Crystal Structures of Octacyanomolybdates(IV), I Ag 4 (NH 3 ) 5 Mo(CN) 8 -l,5H 2 0  
 Abstract    The crystal structure of the triclinic compound Ag4(NH 3) 5 Mo(CN) 8 -l,5H^O could be refined in space group PI (at T = 179 K: a = 974.6, b = 1477.6, c = 775.5 pm, a =102.5, ß = 94.6, y = 81.5°, Z = 2. Rg = 0.044 for 2744 independent reflections). The [Mo(CN) 8 ] 4 ~-groups form distorted square antiprisms with mean distances Mo—C = 215.7, C—N = 115.1 pm. They are connected to a puckered layer via four of their nitrogen ends which are tetrahedrally coordinated to silver (Ag—N = 226.7 pm). In between these layers and more or less tightly coordinated to their free cyano-N atoms dumbbells [CNAgNH 3 ] and [Ag(NH 3) 2 ] + are embedded. Their variation of distances and angles (Ag—N: 213 ... 216 pm, N —Ag-N: 150 ... 174°) is discussed. 
  Reference    Z. Naturforsch. 43b, 1167—1173 (1988); eingegangen am 20. April 1988 
  Published    1988 
  Keywords    Crystal Structure, Octacyanomolybdate, Silver-Nitrogen Coordination 
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 Identifier    ZNB-1988-43b-1167 
 Volume    43 
31Author    Gerhard Thiele, Dietmar PutzasRequires cookie*
 Title    Antiprismatische und dodekaedrische Oktaaquokationen von Calcium und Strontium in den Kristallstrukturen von Tetrahalogenocadmaten und -mercuraten Antiprismatic and Dodecahedral Oktaaquo Cations of Calcium and Strontium in the Crystal Structures of Tetrahalogeno Cadmates and Mercurates  
 Abstract    The tetrahalogenometallates CaHgBr 4 -8H 2 0, CaCdI 4 -8H 2 0 and SrCdI 4 -8H 2 0 which have been obtained by crystallization from aqueous solutions form different structures. The orthorhombic compounds CaHgBr 4 -8H^O (Cmca, a — 1720.1(6) pm, b = 1329.2(4) pm. c = 1369.5(7) pm, Z — 8, R -0.041) and SrCdI 4 -8H 2 0 (Pnma, a = 1404.6(2) pm, b = 1841.1(5) pm. c = 1420.6(3) pm, Z = 8, R = 0.037) are built up from dodecahedral [A(H 2 0) 8 ] cations (A = Ca, Sr) and tetrahedral MX 4 anions (M = Hg, Cd) which are cubic closed packed in a CuAu type structure. The tetragonal structure of CaCdI 4 -8H 2 0 (P4/nbm, a = 1268.14(13) pm, c = 536.96(35) pm. Z = 2, R = 0.034) contains antiprismatic [Ca(H 2 0) x ] 2+ cations and tetrahedral Cdl 4 anions, which form together a tetragonal primitive rod package. 
  Reference    Z. Naturforsch. 43b, 1224—1234 (1988); eingegangen am 9. Juni 1988 
  Published    1988 
  Keywords    Crystal Structure, Hydrates, Cadmium Complexes, Mercury Complexes 
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 Identifier    ZNB-1988-43b-1224 
 Volume    43 
32Author    Gerhard CordierRequires cookie*
 Title    Darstellung und Kristallstruktur von Ca 5 Ga 2 N 4 Preparation and Crystal Structure of Ca 5 Ga 2 N 4  
 Abstract    The crystal structure of Ca 5 Ga 2 N 4 (orthorhombic, space group Cmca, a = 487.3(2) pm, b = • 1110.5(3) pm, c = 1421.7(4) pm, Z = 4) contains infinite zig-zag chains of Ga atoms, which are in a tetrahedral coordination by two additional nitrogen atoms in terminal positions. 
  Reference    Z. Naturforsch. 43b, 1253—1255 (1988); eingegangen am 3. Juni/18. Juli 1988 
  Published    1988 
  Keywords    Crystal Structure, X-Ray, Alkaline Earth Gallium Nitrides 
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 Identifier    ZNB-1988-43b-1253 
 Volume    43 
33Author    MervatEl Essawi, H. Gosmann, D. Fenske, F. Schmock, K. DehnickeRequires cookie*
 Title    Synthesen und Kristallstrukturen von [PPh 3 Me]N0 2 und [PPh 3 Me]HC0 2 H 2 0 Syntheses and Crystal Structures of [PPh 3 Me]N0 2 and [PPh 3 Me]HC0 2 H 2 0  
 Abstract    Triphenylmethylphosphonium nitrite and formate have been prepared by the reaction of [PPh,Me]I with silver nitrite, and lead formate, respectively, in aqueous solutions. [PPh 3 Me]N0 2 (1) forms pale yellow crystals, and [PPh 3 Me]HC0 2 H 2 0 (2) forms white crystals. Both com-pounds are soluble in water, ethanol, and dichloromethane. In moist air 2 is hydrated to yield [PPh 3 Me]HC0 2 -2H 2 0 (3). The compounds were characterized by their IR spectra. 1 and 2 also by X-ray crystal structure determinations. [PPh 3 Me]NO-> (1): space group P2,/«, Z = 4, 2088 independent observed reflexions, R = 0.062. Lattice dimensions (20 °C): a = 914.7(3), b = 1887.5(9), c = 1080.0(4) pm, ß = 110.29(3)°. The compound consists of PPh,Me + ions and NO-," anions with bond lengths of 114.2(6) pm and a bond angle of 124.1(7)°. [PPh 3 Me]HCOi • H^O (2): space group P2,/n, Z = 4, 2973 independent observed reflexions, R = 0.069. Lattice dimensions (-20 °C): a = 931(2), b = 1558(3), c = 1281(2) pm, ß = 105.9(1)°. The compound consists of PPh 3 Me + ions and formate anions which form centrosymmetric dimeric units [HCOvftO]?" through hydrogen bridges of the water molecules. Bond lengths CO 122.4(4) and" 120.9(4) pm. bond angle OCO 129.9(4)°. 
  Reference    Z. Naturforsch. 43b, 1279—1284 (1988); eingegangen am 27. Mai 1988 
  Published    1988 
  Keywords    Triphenylmethylphosphonium Nitrite and Formate, Synthesis, Crystal Structure 
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 Identifier    ZNB-1988-43b-1279 
 Volume    43 
34Author    WolfgangA. Herrmann, RolandA. Fischer, JosefK. Felixberger, RoccoA. Paciello, Pavlo Kiprof, Eberhardt HerdtweckRequires cookie*
 Title    Organorheniumhalogenide: Synthesen, Strukturen und Reaktivität gegenüber Alkinen Organorhenium Halogenides: Synthesis, Structure and Reactivity upon Treatment with Alkynes  
 Abstract    [dichloro(/<-chloro)(^-pentamethylcyclopentadienyI)rhenium(IV)] 
  Reference    Z. Naturforsch. 43b, 1391—1404 (1988); eingegangen am 29. April 1988 
  Published    1988 
  Keywords    Organorhenium Halides, Synthesis, Crystal Structure, Reactivity Bis 
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 Identifier    ZNB-1988-43b-1391 
 Volume    43 
35Author    H. Schmidbaur, R. Nowak, B. Huber, G. MüllerRequires cookie*
 Title    Synthese  
 Abstract    und Kristallstruktur von [(C 6 Et 6)(C 6 H 5 Me)GaGaCI 4 ] 1/2 (C 6 Et 6): Ein gemischter Bis(i/ 6 -aren)gallium(I)-Komplex Synthesis and Crystal Structure of [(C 6 Et 6)(C 6 H 5 Me)GaGaCl4] • 1/2 (C 6 Et 6): A Mixed Bis(^ 6 -arene)gallium(I) Complex Crystals obtained from solutions of hexaethylbenzene and anhydrous Ga[GaCl 4 ] in toluene on cooling have the stoichiometry [(C 6 Et 6)(C 6 H 5 Me)GaGaCl 4 ] • 1/2 C 6 Et 6 . a = 9.760(1), b = 21.447(2), c = 17.754(2) A. ß = 95.47(1)°; monoclinic. space group P2,/n. Z = 4. Each Ga(I) center is ?/ 6 -bonded to one molecule of hexaethylbenzene and to one molecule of toluene. The two rings form an angle of 38,8°. The remaining crystal hexaethylbenzene is situated between two complex units, which are related by an inversion center located in the center of the ring. 
  Reference    Z. Naturforsch. 43b, 1447—1452 (1988); eingegangen am 27. Juli 1988 
  Published    1988 
  Keywords    Gallium(I) Arene Complex, Hexaethylbenzene, Crystal Structure 
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 Identifier    ZNB-1988-43b-1447 
 Volume    43 
36Author    Michael Wedler, W. Herbert, FrankT. Roesky, Edelmann, Ulrich BehrensRequires cookie*
 Title    (T-Ferrocenyl-Komplexe der frühen Übergangsmetalle — Synthese und Struktur a-Ferrocenyl Complexes of the Early Transition Metals — Synthesis and Structure  
 Abstract    Ferrocenyllithium, FcLi (1), reacts with (C 5 H 4 CH 3) 2 TiCl2, CpTiCl, and Cp*TiCl 3 to give the new (7-ferrocenyl complexes (C5H 4 CH 3) 2 TiFc 2 (2), CpTiFc, (3) and Cp*Ti(Fc) 2 Cl (4), respectively. Treatment of Cp*ZrCl 2 with FcLi yields the mono-substitution product Cp*Zr(Fc)Cl (5), which has been characterized by an X-ray structure analysis. Compound 5 crystallizes in the monoclinic space group P2,/c (a = 1622.3(6), b = 995.0(2), c = 1664.3(6) pm; ß = 94.78(3)°; Z = 4). Due to the sterically demanding pentamethylcyclopentadienyl ligands 5 contains a long zirconium-carbon bond (231.4(8) pm) and the Cp rings of the ferrocenyl substituent are tilted by 10.2°. The syntheses of CpZrFc., (6), Cp*HfFc 3 (7) and Cp : VFc 2 (8) are also described. 
  Reference    Z. Naturforsch. 43b, 1461—1467 (1988); eingegangen am 6. Mai 1988 
  Published    1988 
  Keywords    Ferrocene, Early Transition Metals, Crystal Structure 
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 Identifier    ZNB-1988-43b-1461 
 Volume    43 
37Author    Abderraouf Khabou, Kurt Dehnicke, Kurt Findeisen, Farbenfabriken Bayer, Bayer-WerkD. Leverkusen, -5090 Leverkusen, Dieter FenskeRequires cookie*
 Title    Molybdännitridtrichlorid-2,3,3-trichloracrylnitril, [M0NCI3 * NC-C 2 C1 3 ] 2 Synthese, IR-Spektrum und Kristallstruktur Molybdenumnitridetrichloride-2,3,3-trichloroacrylnitrile, [MONC1 3 * NC—C 2 C1 3 ] 2 Synthesis, IR Spectrum, and Crystal Structure  
 Abstract    [MONC1 3 -NC —C 2 C1 3 ] 2 has been prepared by the reaction of MONC1 3 with trichloromethyl isocyanidedichloride, CC1 3 NCC1 2 , in CH 2 C1 2 suspension. The compound forms redbrown. mois-ture sensitive crystals, which were characterized by their IR spectrum as well as by a crystal structure determination (2482 independent observed reflexions, R = 0.048). Crystal data (-70 °C): Space group P2,/c, Z = 2, a = 674.2(2); b = 2128.2(11); c = 786.0(4) pm: ß = 102.81(3)°. [MONC1 3 • NC-C 2 C1 3 ] 2 forms centrosymmetric dimeric molecules via chloro bridges with Mo-Cl bond lengths of 240.7 and 276.0 pm. The longer MoCl bond of the MOC1 2 MO ring is caused by the trans influence of the nitride ligand; the MoN bond length of 167 pm corresponds with a triple bond. The 2,3,3-trichloroacrylnitrile ligand is bonded by its nitrogen atom with a bond length of Mo —N — 216 pm; the Mo-N=C—C sequence is almost linear with a remarkable short C—C bond of 143.0 pm. 
  Reference    Z. Naturforsch. 43b, 1616—1620 (1988); eingegangen am 19. Juli 1988 
  Published    1988 
  Keywords    Molybdenumnitridetrichloride-233-trichloroacrylnitrile, Synthesis, IR Spectra, Crystal Structure 
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 Identifier    ZNB-1988-43b-1616 
 Volume    43 
38Author    Dieter Fenske, Eberhard Böhm, Kurt Dehnicke, Joachim SträhleRequires cookie*
 Title    N-TrimethylsilyMminotriphenylphosphoran-Kupfer(II)-chlorid, (Me 3 SiNPPh 3 * CuCl 2 ]2 Synthese und Kristallstruktur N-Trimethylsilyl-iminotriphenylphosphorane Copper(II) Chloride, [Me 3 SiNPPh 3 * CuCl : ] 2 Synthesis and Crystal Structure  
 Abstract    The title compound has been prepared by the reaction of N-trimethylsilyl-iminotriphenylphos-phorane with copper(II) chloride in boiling CCl 4 /C 2 H 5 OH, and forms moisture sensitive crystals, which are green in transmittance and black in reflexion. [Me 3 SiNPPh 3 • CuCl 2 ] 2 was characterized by its IR spectrum as well as by a crystal structure determination (4197 observed, independent reflexions, R = 0.049). The lattice dimensions are at 20 °C: a = 1102.7. b = 1407.3. c = 1560.2 pm; ß = 94.27°; space group P2,/« with two formula units in the unit cell. The complex consists of centrosymmetric, dimeric molecules with a planar Cu 2 Cl 2 ring (Cu —CI bond lengths 229 and 231 pm). A terminally bonded CI atom (Cu —CI = 221 pm) and the N atom of the Me,SiNPPh 3 ligand (Cu —N = 198.5 pm) complete the coordination number four of the nearly planar surroundings of the Cu atoms. 
  Reference    (Z. Naturforsch. 43b, 1 [1988]; eingegangen am 4. September 1987) 
  Published    1988 
  Keywords    N-Trimethylsilyl-iminotriphenylphosphorane Copper(II) Chloride, Synthesis, IR Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0001.pdf 
 Identifier    ZNB-1988-43b-0001 
 Volume    43 
39Author    Christa Pomp, Stefan Drüeke, Heinz-Josef Küppers, Karl Wieghardt, Carl Krüger, Bernhard Nuber, Johannes WeissRequires cookie*
 Title    Synthese  
 Abstract    von [LRe(CO) 3 ] + -Komplexen mit makrocyclischen Liganden Die Kristallstrukturen von 1,4,7-TriazacycIononan-tricarbonyl-rhenium(I)-thiocyanat und 1,4,7-Trithiacyclononan-tricarbonyl-rhenium(I) -bromid-hemihy drat Synthesis of [LRe(CO) 3 ]" Complexes with Macrocyclic Ligands The Crystal Structures of l,4,7-Triazacyclononane-tricarbonyl-rhenium(I) Thiocyanate and of l,4,7-Trithiacyclononane-tricarbonyl-rhenium(I) Bromide Hemihydrate The tridentate macrocyclic ligands 1,4,7-triazacyclononane, its thia analogue 1,4.7-trithia-cyclononane, l-oxa-4,7-diazacyclononane, and N,N',N"-trimethyl-l ,4,7-triazacyclononane react with Re(CO) 5 Br in dimethylformamide to yield colorless, air-stable [LRe(CO) 3 ]Br complexes (L = tridentate macrocycle). With Mn(CO) 5 Br only the cyclic amines react to af-ford yellow-orange [LMn(CO),]Br complexes whereas 1.4,7-trithiacyclononane does not give stable complexes of manganese. The crystal structures of [([9]aneN 3)Re(CO) 3 ](NCS) and [([9]aneS 3)Re(CO) 3 ]Br-1/2 H : 0 have been determined. The former crystallizes in the orthorhom-bic space group Pbca (a = 12/763(4), b = 12.662(5), c = 17.472(9) Ä; Z = 8); whereas the latter crystallizes in the monoclinic space group P2,/c (a = 9.444(1). b = 11.797(2), c = 28.095(3) Ä. ß = 90,86(1); Z = 8). 
  Reference    Z. Naturforsch. 43b, 299—305 (1988); eingegangen am 9. Oktober 1987 
  Published    1988 
  Keywords    Crystal Structure, 1, 4, 7-Triazacyclononane 1, 47-Trithiacyclononane Complexes 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0299.pdf 
 Identifier    ZNB-1988-43b-0299 
 Volume    43 
40Author    Gerhard Cordier, Michael SteherRequires cookie*
 Title      
 Abstract    The compound Sr 5 Al 2 Sb 6 crystallizes in the orthorhombic system (space group Pnma (No. 62)) with the lattice constants: a = 1212.4(4) pm, b = 1034.1(4) pm, c = 1340.9(5) pm. AlSb 4 tetrahedra are connected via common edges and corners to chains. Every second terminal Sb atom of the chain is connected to another Sb atom, such that end-on Sb 2 groups and terminal Sb alternate. The compound Ba 5 In 2 Sb 6 crystallizes in the orthorhombic system (space group Pbam (No. 55)). The lattice constants are: a = 1530.7(6) pm, b = 1335.8(5) pm, c = 478.6(2) pm. In the structure, InSb 4 tetrahedra are connected via common corners and Sb 2 groups to form double chains. Both compounds are classified as Zintl phases. 
  Reference    Z. Naturforsch. 43b, 463—466 (1988); eingegangen am 10. Dezember 1987 
  Published    1988 
  Keywords    Strontium Antimonido Aluminates, Barium Antimonido Indates, Crystal Structure, Zintl Phase 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0463.pdf 
 Identifier    ZNB-1988-43b-0463 
 Volume    43 
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