| 2 | Author
| Hans-Georg Von Schnering, Wolfgang May | Requires cookie* | | Title
| Die Struktur des 2  | | | Abstract
| One of the diastereomeres of 2,3,4,6,7,8-hexamethyl-2,3,4,6,7,8-hexaphosphabicyclo-[3,3,0]octane (PMe)öC2H2 crystallizes in the space group P2i/n with four molecules per unit cell. Two independent molecules are nearly identical in shape but differ by inter-molecular packing. The five-membered rings have a skew chair conformation with all exocyclic methyl groups in axial positions leading to a staggered all-trans conformation of the bicyclic system. The mean bond lengths are P-P = 220.9 pm, P-C = 185.9 pm and C-C = 151.9 pm. | | |
Reference
| Z. Naturforsch. 33b, 698—698 (1978); eingegangen am 24. April 1978 | | |
Published
| 1978 | | |
Keywords
| Carbaphosphane, Molecular Structure, Crystal Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0698.pdf | | | Identifier
| ZNB-1978-33b-0698 | | | Volume
| 33 | |
3 | Author
| Cyclic Diazastannylenes, Iii, M. Veith | Requires cookie* | | Title
| Cyclische Diazastannylene, DI 1 Die Kristall-und Molekülstruktur der monoklinen Phase von 1.3-Di-feri-butyl-2.2-dimethyl-1.3.2.4A 2 -diazasilastannetidin The Crystal and Molecular Structure of the Monoclinic Phase of l,3-Di-feri-butyl-2,2-dimethyl-l,3,2,4A 2 -diazasilastannetidine  | | | Abstract
| The crystal and molecular structure of the monoclinic phase of l,3-di-£eri-butyl-2,2-dimethyl-l,3,2,4A 2 -diazasilastannetidine has been determined from three-dimensional X-ray data collected on a two-circle diffractometer at —120 °C (MoKa radiation, 2623 re-flexions, R — 0,050). The crystals are monoclinic, space group C 2/c, with cell dimensions a = 10.655(5), b = 25.75(1), c = 17.33(1) A, ß = 106.8(1)° and Z = 12. Four monomeric (crystal site symmetry 2 (C2)) and four dimeric units (crystal site symmetry I (Cj)) are present in the structure interacting over tin-tin (3.68 A). Remarkable are the very short Sn-N bond (2.09 A) in the monomer and the donation bond Sn-N (2.39 Ä) in the dimer. The coordination of the tin atoms in the different units is discussed in detail. | | |
Reference
| (Z. Naturforsch. 33b, 7—13 [1978]; eingegangen am 5. September/6. Oktober 1977) | | |
Published
| 1978 | | |
Keywords
| Diazastannylenes, X-ray, Molecular Structure, Crystal Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0007.pdf | | | Identifier
| ZNB-1978-33b-0007 | | | Volume
| 33 | |
5 | Author
| Peter Klüfers, Albrecht Mewis | Requires cookie* | | Title
| Zur Struktur der Verbindungen BaZn2P2 und BaZn2As2 The Crystal Structure of BaZii2P2 and BaZn2As2  | | | Abstract
| New yü?2-X^2-compounds, BaZn2?2 and BaZn2As2, were prepared. The structures were determined by X-ray methods. In the case of BaZn2P2 (S.G. I4/mmm; a = 4.019 A, c = 13.228 A) layers of edgeshared ZnP4-tetrahedra alternate with Ba-layers; in the case of BaZn2As2 (S.G. Pnma; a = 10.010 A, b = 4.246 A, c = 10.910 A) Zn and As build a 3D-network of edge and vertex shared tetrahedra with Ba in the holes of this network. | | |
Reference
| Z. Naturforsch. 33b, 151—155 (1978); eingegangen am 19. Oktober 1977 | | |
Published
| 1978 | | |
Keywords
| Ternary Barium Compounds, Zinc, Phosphide, Arsenide, Crystal Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0151.pdf | | | Identifier
| ZNB-1978-33b-0151 | | | Volume
| 33 | |
6 | Author
| Erich Sepp, Albert Pürzer, Gerhard Thiele, Helmut Behrens | Requires cookie* | | Title
| Zur Struktur des Cycloheptatrienid-tricarbonyl-eisen(0)-Anions, [C7H7Fe(CO)3] The Structure of the Cyeloheptatrienide Triearbonyl Iron(O) Anion, [C7H7Fe(CO)3]~  | | | Abstract
| The crystal structure of the [C7H7Fe(CO)3] _ anion stabilized with the [(CeHs^As]" 1 " cation has been determinated by X-ray diffraction. The crystals are monoclinic, space group P2i/n. The unit cell with lattice constants a = 1607.9 pm, b = 1386.8 pm, c = 1249.1 pm and ß — 91.52° includes four formula units. The Fe(CO)3 group is bonded to the allyl anion part of the C7H7 ring system, while the diene part is unco-ordinated. | | |
Reference
| Z. Naturforsch. 33b, 261—264 (1978); eingegangen am 19. Dezember 1977 | | |
Published
| 1978 | | |
Keywords
| Cyeloheptatrienide Anion, Iron Carbonyl Derivate, Crystal Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0261.pdf | | | Identifier
| ZNB-1978-33b-0261 | | | Volume
| 33 | |
7 | Author
| Gerhard Savelsberg, Herbert Schäfer | Requires cookie* | | Title
| Ternäre Pnictide und Chalkogenide von Alkalimetallen und IB-bzw. IIB-Elementen On Ternary Pnictides and Chalkogenides of Alkaline Metals and IB-resp. II B-Elements  | | | Abstract
| The new compounds NaCuSe, NaCuTe, KCuSe, KCuTe and KZnP were prepared and their structures -together with those of KZnSb, NaCdSb and NaZnSb -determined. NaCuSe, NaCuTe and NaZnSb crystallize in a PbFCl type, while NaCdSb forms the awta'-PbCl2-structure. KCuSe, KCuTe, KZnP and KZnSb build up the Ni2ln-structure. | | |
Reference
| Z. Naturforsch. 33b, 370—373 (1978); eingegangen am 31. Januar 1978 | | |
Published
| 1978 | | |
Keywords
| Intermetallic Compounds, Crystal Structure, Ternary Pnictides, Ternary Chalkogenides | | |
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| default:Reihe_B/33/ZNB-1978-33b-0370.pdf | | | Identifier
| ZNB-1978-33b-0370 | | | Volume
| 33 | |
11 | Author
| Gerhard Thiele, Peter Hilfrich | Requires cookie* | | Title
| Über Cyanatomercurate M2Hg3(NCO)8 (M = K, Rb, Cs) - Synthesen, Kristallstrukturen und Schwingungsspektren On Cyanatomercurates M2Hg3(NCO)8 (M = K, Rb, Cs) - Syntheses, Crystal Structures and Vibrational Spectra  | | | Abstract
| By mixing aqueous solutions of Hg(CH3COO)2 and MOCN (M = K, Rb, Cs) the tri-clinic compounds M2Hg3(NCO)8 are formed. In a first approximation the crystal structure analysis indicates isolated Hg(NCO)2 molecules besides K+ and NCO~ ions. As in the range of van der Waals radii additional NCO-neighbours are noticed the mercury atoms are surrounded by distorted octahedra. The octahedra around 2/3 of the Hg form infinite chains as in KHg(NCO)3 which are linked together by additional Hg(NCO)2 molecules. Therefore the compound can be formulated as a double salt 2 KHg(NCO)3 • Hg(NCO)2. The vibrational spectrum is discussed. Rb2Hg3(NCO)8 is isotypous while the caesium salt has a double cell volume. | | |
Reference
| Z. Naturforsch. 33b, 597—602 (1978); eingegangen am 20. März 1978 | | |
Published
| 1978 | | |
Keywords
| Cyanatomercurate, Cyanato Complexes, Crystal Structure, Vibrational Spectra | | |
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| default:Reihe_B/33/ZNB-1978-33b-0597.pdf | | | Identifier
| ZNB-1978-33b-0597 | | | Volume
| 33 | |
13 | Author
| Klaus Deller, Brigitte Eisenmann | Requires cookie* | | Title
| BaSb3, ein Antimonid mit einem zwei- dimensional unendlichen [Sb3 2 ] n-Poly anion BaSb3, an Antimonide with an Infinite Twodimensional [Sb3 2 ~]n -Anion  | | | Abstract
| The new compound BaSb3 has been prepared and its structure determined. It crystallizes monoclinic (C 2/m, a = 1080.7(5) pm, b = 851.9(5) pm, c = 647.1(5) pm, ß = 112.66(4)°). The Sb-atoms build up 14-rings of two-and threebonded Sb, which are connected to puckered nets. | | |
Reference
| Z. Naturforsch. 33b, 676—677 (1978); eingegangen am 17. März 1978 | | |
Published
| 1978 | | |
Keywords
| Barium Antimonide, Crystal Structure, Intermetallic Compound | | |
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| default:Reihe_B/33/ZNB-1978-33b-0676_n.pdf | | | Identifier
| ZNB-1978-33b-0676_n | | | Volume
| 33 | |
17 | Author
| Erwin Brechtel, Gerhard Cordier, Herbert Schäfer | Requires cookie* | | Title
| Neue ternäre Erdalkaliverbindungen des Arsens mit Mangan New Ternary Alkaline Earth Compounds of Arsenic with Manganese  | | | Abstract
| The new compounds CaMn2As2, SrMn2As2 and BaMn2As2 have been prepared and their struc-tures determined. The crystallographic data are (pm): CaMn.2As2: P3ml, a = 423 ± 1, c = 703 ± 1, c/a = 1.66 SrMri2As2: P3m 1, a = 429±l,c = 732 ± 1, c/a = 1.70 BaMn2As2: I4/mmm, a = 415 ± 2, c = 1347 ± 2, c/a = 3.24 | | |
Reference
| Z. Naturforsch. 33b, 820—822 (1978); eingegangen am 17. April 1978 | | |
Published
| 1978 | | |
Keywords
| Intermetallic Compounds, Crystal Structure, Ternary Arsenides | | |
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| default:Reihe_B/33/ZNB-1978-33b-0820_n.pdf | | | Identifier
| ZNB-1978-33b-0820_n | | | Volume
| 33 | |
18 | Author
| Johanna Von Unterrichter, Klaus-Jürgen Range | Requires cookie* | | Title
| Ag8GeTe6, ein Vertreter der Argyroditfamilie AgsGeTe6, a Representative of the Argyrodite Family  | | | Abstract
| A single crystal of AgsGeTe6 was found to be rhombohedral, pseudocubic, space group R3m, with a— 817.6 pm, a — 60° and Z — 1. The anion lattice consists of three-dimen-sionally connected Frank-Kasper polyhedra with C. N. 12 and 16. The structure comprises isolated GeTe4-tetrahedra and silver ions, statistically distributed over a number of sites with distorted tetrahedral, trigonal and linear co-ordination. Structural data for some other compounds of the argyrodite family are given. | | |
Reference
| Z. Naturforsch. 33b, 866—872 (1978); eingegangen am 2. Mai 1978 | | |
Published
| 1978 | | |
Keywords
| Silver Germanium Telluride, Crystal Structure, Argyrodite Family | | |
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| default:Reihe_B/33/ZNB-1978-33b-0866.pdf | | | Identifier
| ZNB-1978-33b-0866 | | | Volume
| 33 | |
19 | Author
| Wolfgang May, Hans Georg Von Schnering | Requires cookie* | | Title
| Darstellung und Struktur des Bicyclo-[4.4.0]-1.4.6.9-tetraazadecans C6H14N4  | | | Abstract
| By the weak acid interaction of polymeric phosphanes the condensation of ethylendi-amine yields in a small amount bicyclo-[4,4,0]-l,4,6,9-tetraazadecane C6H14N4. The compound crystallizes triclinic in the space group PI with a = 841.6 pm, b — 463.6 pm, c = 529.2 pm, a= 109.05°, ß= 108.35°, y = 84.13° and Z= 1 formula unit per unit cell. The two condensed six-membered rings have chair conformations. The mean N-C bond lengths are 146.0 pm, the bridging C-C bond is 150.3 pm, whereas the other C-C bonds are 155.1 pm. Structure and condensation reaction are discussed. | | |
Reference
| Z. Naturforsch. 33b, 881—883 (1978); eingegangen am 17. Mai 1978 | | |
Published
| 1978 | | |
Keywords
| Tetraaza-bicyclo-decane, Preparation, Crystal Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0881.pdf | | | Identifier
| ZNB-1978-33b-0881 | | | Volume
| 33 | |
20 | Author
| A. Müller, N. Mohan, H. Bögge | Requires cookie* | | Title
| Molekül-und Elektronenstruktur des Thioheteroanions [S2 WS2CoS2WS2] 2 - Molecular and Electronic Structure of the Thiohetero Anion [S2WS2CoS2WS2] 2  | | | Abstract
| The crystal and molecular structure of [(C6H5)4P]2[Co(WS4)2] was determined from single crystal X-ray diffraction data (space group P2i/c with a = 18.542(4), b — 15.443(2), c= 18.713(2) A, /?= 108.73(1)°, Z = 4). In the complex anion Co is coordinated by two bidentate chelating WS4 2 -anions, with a nearly tetrahedral surrounding of Co. The bond lengths in the planar metal sulfur ring CoS2W are Co-S = 2.26 A and W-S = 2.22 A, while the terminal W-S bonds are 2.14 A. | | |
Reference
| Z. Naturforsch. 33b, 978—982 (1978); eingegangen am 8. Mai 1978 | | |
Published
| 1978 | | |
Keywords
| Crystal Structure, Molecular Structure, Thiohetero Anion, Electronic Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0978.pdf | | | Identifier
| ZNB-1978-33b-0978 | | | Volume
| 33 | |
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