| 283 | Author
| | Requires cookie* | | Title
|  | | | Abstract
| G e r h a r d C o r d i e r u n d H e r b e r t S c h ä f e r BaMnSb2, SrMnBi2 and BaMnBi2 have been prepared and structurally characterized. The new compounds are isotypic and crystallize tetragonal in the SrZnBi2 structure with the following constants: BaMnSb2: a = 4.53 ± 0.01 A, c = 24.34 ± 0.03 A, c/a = 5.37. SrMnBi2: a = 4.58 ± 0.01 A , c = 23.13 ± 0.03 A, c/a = 5.05. BaMnBi2: a — 4.63 ± 0.02 A, c = 24.22 i 0.05 A, c/a = 5.23. The transition metal atoms form together with the semimetal atoms sheets of tetragonal pyramids separated by double layers of alkali earth atoms. In these double layers there are inserted Bi/Sb-square nets. | | |
Reference
| (Z. Naturforsch. 32b, 383—386 [1977]; eingegangen am 29. Dezember 1976) | | |
Published
| 1977 | | |
Keywords
| Intermetallic Compounds, Crystal Structure, Ternary Antimonides, Ternary Bismutides | | |
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| default:Reihe_B/32/ZNB-1977-32b-0383.pdf | | | Identifier
| ZNB-1977-32b-0383 | | | Volume
| 32 | |
284 | Author
| W. Muschick, Hk Müller-Buschbaum | Requires cookie* | | Title
| Ein Beitrag zur Kristallchemie dreiwertiger Seltenerdoxide Zur Stabilisierung der m onoklinen B-Form  | | | Abstract
| Single crystals of 1 — a'Ho203 : xCaO (x = 0.07), CaHoC>2.5 (A) and Cao.5H 01.5O2.75 (B) were prepared by high temperature reaction and investigated with X-ray single crystal data. It can be shown that small amounts of CaO stabilize the monoclinic B-Typ of rare earth oxides. Phase (A) and (B) cannot be seen as a stabilized B-type crystal because they have an new crystal structure with space group C.7h-P 2 i/m, a = 656.6, b = 356.7, c = 529.4pm , ß = 92.3°; a = 650.2, b = 352.4, c = 584.5, ß = 92.3°. | | |
Reference
| (Z. Naturforsch. 32b, 495—498 [1977]; eingegangen am 15. Februar 1977) | | |
Published
| 1977 | | |
Keywords
| Holmium, Thulium, Calcium, X-ray, Crystal Structure | | |
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| default:Reihe_B/32/ZNB-1977-32b-0495.pdf | | | Identifier
| ZNB-1977-32b-0495 | | | Volume
| 32 | |
285 | Author
| | Requires cookie* | | Title
| Über die Tricyanatomercurate KHg(NCO)3 und RbHg(NCO)3 - Synthesen, Kristallstrukturen und Schwingungsspektren  | | | Abstract
| On th e Cyanatom ercurates K H g(N C O)3 and R bH g(N C O)3 -Syntheses, Crystal Structures and V ibrational Spectra G e r h a r d T h i e l e u n d P e t e r H i l f r i c h B y m ixing aqueous solutions of Hg(CH3COO)2 and KOCN the white precipitate K 2 Hg3(NCO)8 is formed. When recrystallised from CH3OH colorless crystals of the compound KHg(NCO)3 are obtained. The crystal structure analysis (space group Pnma; a — 1015.2(6) pm, b = 399.3(3) pm, c = 1772.9(9) pm) shows a distorted KCdCl3 arrange ment w ith isolated Hg(NCO)2 molecules, K+ and NCO~ ions. The vibrational spectra in the range of 250-3000 cm-1 are discussed. The rubidium compound is isotypous (a = 1019.0(6) pm, b = 411.6(4) pm, c = 1820.5(8) pm). | | |
Reference
| (Z. Naturforsch. 32b, 1239—1243 [1977]; eingegangen am 25. Juli 1977) | | |
Published
| 1977 | | |
Keywords
| Cyanatomercurate, Cyanato Complex, Crystal Structure, Vibrational Spectra | | |
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| default:Reihe_B/32/ZNB-1977-32b-1239.pdf | | | Identifier
| ZNB-1977-32b-1239 | | | Volume
| 32 | |
287 | 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 | |
289 | 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 | |
290 | 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 | |
291 | 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 | |
295 | 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 | |
297 | 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 | |
|