| 4 | Author
| Helmut Rieskamp, Rainer Mattes | Requires cookie* | | Title
| Fluorreiche Oxofluorovanadate(V): Die Kristallstruktur von [enH2] [VOF5]  | | | Abstract
| The crystal structure of triclinic [enH2][VOF5], prepared in aqueous solution, has been determined from X-ray diffractometer data (i? = 0.076 for 527 reflections). The structure contains monomeric [VOFs] 2--ions. The bond distances are 1.54(1) Ä (terminal oxygen), 1.80(1) (average for the cis-fluorine atoms) and 2.10(1) Ä for the fluorine atom in trans-position to the terminal oxygen atom. This fluorine atom is involved in strong hydrogen bonds originating from the [NHaCH^CH^NEy 2 " 1 -cation with cisoid conformation. Earlier results about the existence of K2VOF5 could not be confirmed. | | |
Reference
| (Z. Naturforsch. 31b, 1453—1455 [1976]; eingegangen am 2. August 1976) | | |
Published
| 1976 | | |
Keywords
| Oxopentafluorovanadates(V), Crystal Structure, Vibrational Spectra | | |
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| default:Reihe_B/31/ZNB-1976-31b-1453.pdf | | | Identifier
| ZNB-1976-31b-1453 | | | Volume
| 31 | |
5 | 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 | |
6 | Author
| Franz Gerstner, Johann Weidlein | Requires cookie* | | Title
| N.N' -Dimethylacetamidinderivate des Aluminiums, Galliums und Indiums N,N'-Dimethylacetamidin Derivatives of Aluminium, Gallium and Indium  | | | Abstract
| The interaction of N,N'-dimethylacetamidine with trialkyl derivatives of alumin-ium, gallium and indium yields dialkylmetal compounds of the structural formula R2M(N2Me2CMe) (M = Al, Ga and In). According to the vibrational data the M2N4C2 skeletons of these dimeric products form a centrosymmetric puckered eight-membered ring, probably with C2h symmetry. The IR-and Raman spectra of the amidine HN(Me)C(= NMe)Me are discussed. | | |
Reference
| (Z. Naturforsch. 33b, 24—29 [1978]; eingegangen am 3. Oktober 1977) | | |
Published
| 1978 | | |
Keywords
| Dialkylmetal Acetamidin Derivatives, Preparation, Vibrational Spectra | | |
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| default:Reihe_B/33/ZNB-1978-33b-0024.pdf | | | Identifier
| ZNB-1978-33b-0024 | | | Volume
| 33 | |
7 | Author
| Tetraphenylphosphonium-Isopolymolybdates, Roger Grase, Joachim Fuchs | Requires cookie* | | Title
| Über Tetraphenylphosphonium-Isopolymolybdate  | | | Abstract
| From acidified sodium molybdate solutions mixtures of two polymolybdates are precipitated by addition of tetraphenylphosphonium ions. The pure compounds obtainable by separation with selective organic solvents were identified analytically and by their vibrational spectra as octamolybdate, [P(C6Hs)4]4Mo8026, with "Lindqvist structure" and as hexamolybdate, [P(C6Hs)4Mo60i9. They are characterized by their UV-VIS spectra and X-ray powder patterns. The precipitation of the hexamolybdate from strong acidic solution can be used analytically for the determination of molybdenum. | | |
Reference
| Z. Naturforsch. 33b, 533—536 (1978); eingegangen am 20. Januar 1978 | | |
Published
| 1978 | | |
Keywords
| Isopolymolybdates, Preparation, Vibrational Spectra, X-ray, UV | | |
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| default:Reihe_B/33/ZNB-1978-33b-0533.pdf | | | Identifier
| ZNB-1978-33b-0533 | | | Volume
| 33 | |
8 | 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 | |
10 | Author
| Ralf Steudel, Jürgen Steidel, Torsten Sandow, Fritz Schuster | Requires cookie* | | Title
| Convenient Preparation and Vibrational Spectra of Cyclodecasulfur, S10, and of the Adduct S6 * S10 [1]  | | | Abstract
| Thermal decomposition of S6O2 and S7O, respectively, in CH2CI2 or CS2 solution at temperatures between 20 and 5 °C yields SO2, polymeric sulfur and S10 which was obtained as pure single crystals in yields of 7-11% with regard to the starting materials S6 and S7, respectively. Infrared and Raman spectra of S10 as well as of the new molecular addition compound Se • S10 are reported. S10 is one of the thermodynamically instable ätiotropes of sulfur and originally was prepared according to: 2 (C5H5)2TIS5 + 2 SO2CI2 S10 + 2 S02 + 2 (C5H5)2TiCl2 | | |
Reference
| Z. Naturforsch. 33b, 1198—1200 (1978); eingegangen am 6. Juli 1978 | | |
Published
| 1978 | | |
Keywords
| Cyclodecasulfur, Preparation, Vibrational Spectra, Cycloheptasulfur Oxide, Cyclohexasulfur Dioxide | | |
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| default:Reihe_B/33/ZNB-1978-33b-1198_n.pdf | | | Identifier
| ZNB-1978-33b-1198_n | | | Volume
| 33 | |
11 | Author
| Hans-Jörg Widler, Johann Weidlein | Requires cookie* | | Title
| Methylmetallbromo-und -iodokomplexe des Galliums und Indiums Methyl Metal Bromo and Iodo Complexes of Gallium and Indium  | | | Abstract
| The interaction of (CH3)3M"i or (CH3)2Mi"Hal with (CH3)3M v Hal2 and (CH3)4M v Hal, respectively, yields methylhalogeno metalates of the general composition [(CH3)4MV]+[(CH3)4-xM II iHala;]-. (With M^ = As, Sb; M"i = Ga, In; Hal -Br, I and x— 1-3.) The vibrational spectra of these ionic compounds are reported and discussed. | | |
Reference
| (Z. Naturforsch. 34b, 18—22 [1979]; eingegangen am 20. September 1978) | | |
Published
| 1979 | | |
Keywords
| Methyl Halogeno Metalates, Preparation, Vibrational Spectra, Gallium, Indium | | |
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| default:Reihe_B/34/ZNB-1979-34b-0018.pdf | | | Identifier
| ZNB-1979-34b-0018 | | | Volume
| 34 | |
12 | Author
| Dietrich Breitinger, Wilfred Morell, Knut Grabetz | Requires cookie* | | Title
| Tetraquecksilbermethane, II [1] Tetrakis(halogenoquecksilber)-methane C(HgX)4 (X = F, Cl, Br und I): Synthesen und Schwingungsspektren Tetramercurimethanes, II [1] Tetrakis(halomercuri)methanes C(HgX)4 (X = F, Cl, Br and I): Syntheses and Vibrational Spectra  | | | Abstract
| The complete series of tetrakis(halomercuri)methanes C(HgX)4 (X = F, Cl, Br and I) was prepared by metathesis of tetrakis(acetoxymercuri)methane and aqueous hydro-fluoric acid and solutions of halides (Cl -, Br -, and I~), respectively. All compounds are insoluble in most common solvents, but partly soluble in dimethylsulfoxide. Complete vibrational spectra indicate more or less ideally tetrahedral molecules C(HgX)4 in all cases. The originally triply degenerate valence vibrations of the CHg4 entities and the force constants for the C-Hg bonds show distinct correlations with the electronegativities of the halides X. On the other hand the totally symmetrical valence vibrations of CHg4 were found to be highly sensitive to variations in X, mainly due to coupling with the valence vibrations of the Hg-X-groups of the same symmetry species. Some analogies in the vibrational behaviour of the CHg4 fragments and of the isosteric NHg4 core in tetra-mercurioammonium complexes were observed and discussed. 1. Einführung Im Zuge unserer Untersuchungen an Metallo-Komplex-Verbindungen mit den Kationen [Pn(HgCH3)4] + (Pn = N, P und As) erwuchs unser Interesse an Tetraquecksilbermethanen, da in die-sen Verbindungstypen die isosteren Baugruppen PiiHg4 bzw. CHg4 vorliegen (vgl. [1] und dort zitierte eigene Arbeiten). Durch doppelte Umset-zungen der Tetrakis(acetoxyquecksilber)-methane | | |
Reference
| Z. Naturforsch. 34b, 390—395 (1979); eingegangen am 6. November 1978 | | |
Published
| 1979 | | |
Keywords
| Tetrakis(halomercuri) Methanes, Vibrational Spectra, Metallo Complexes | | |
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| default:Reihe_B/34/ZNB-1979-34b-0390.pdf | | | Identifier
| ZNB-1979-34b-0390 | | | Volume
| 34 | |
15 | Author
| Oskar Glemser, Eckehard Kindler, Bernt Krebs, Rüdiger Mews, Frank-Michael Schnepel, Joachim Wegener | Requires cookie* | | Title
| Über das Bis(chlor8chwefel)stick8loff-Kation N(SC1)2 + On the Bis(chlorosulfur)nitrogen Cation N(SC1)2 +  | | | Abstract
| The synthesis of N(SC1)2+ MF6~ (M = As, Sb) is reported, the structure of N(SC1)2+ AlCLr is determined and some of the spectroscopic properties of the N(SC1)2 + cation are discussed. Das Bis(chlorschwefel)Stickstoff-Kation wurde erstmals aus NSF3 und BCI3 dargestellt [1]: | | |
Reference
| Z. Naturforsch. 35b, 657—660 (1980); eingegangen am 15. Februar 1980 | | |
Published
| 1980 | | |
Keywords
| Bis(chlorosulfur)nitrogen Hexafluoroarsenate, Hexafluoroantimonate, Tetrachloroaluminate, Vibrational Spectra | | |
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| default:Reihe_B/35/ZNB-1980-35b-0657.pdf | | | Identifier
| ZNB-1980-35b-0657 | | | Volume
| 35 | |
16 | Author
| Ralf Steudel, Jürgen Steidel, Norbert Rautenberg | Requires cookie* | | Title
| Röntgenstrukturanalyse und Schwingungsspektren yon Trischwefeldistickstoffdioxid, S3N202 [1] X-ray Structural Analysis and Vibrational Spectra of Trisulfurdinitrogendioxide, S3N2O2 [1]  | | | Abstract
| A redetermination of the crystal and molecular structure of the chain-like molecule S(NSO)2 resulted in the following molecular parameters: d(SO) = 146.5(2), d(S = N) = 153.4(2), d(S-N) = 165.7(2) pm, bond angles OSN = 117.5(1)°, SNS = 123.6(2)°, and NSN = 97.2(1)°, torsion angles OSNS = -0.3(2)°, and SNSN = -177.7(2)° (molecular symmetry C2). Infrared and Raman spectra of S(NSO)2 are reported and assigned; there is no evidence for conformational changes on dissolution of crystalline S( | | |
Reference
| Z. Naturforsch. 35b, 792—796 (1980); eingegangen am 5. März 1980 | | |
Published
| 1980 | | |
Keywords
| Sulfur Nitrogen Compounds, Structure, Vibrational Spectra | | |
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| default:Reihe_B/35/ZNB-1980-35b-0792.pdf | | | Identifier
| ZNB-1980-35b-0792 | | | Volume
| 35 | |
18 | Author
| Joachim Fuchs, Axel Thiele, Rosemarie Palm | Requires cookie* | | Title
| Strukturen und Schwingungsspektren des Tetramethylammonium -a -dodekawolframatosilikats und des Tetrabutylammonium-/?-dodekawolframatosilikats Structures and Vibrational Spectra of Tetramethylammonium a-Dodecatungstosilicate and Tetrabutylammonium /?-Dodecatungstosilicate  | | | Abstract
| Dodecatungstosilicates free of crystal water were prepared for the first time by using tetraalkylammonium as cation. The crystal structure of the tetramethylammonium a-dodeeatungstosilicate [N(CH3)4]4SiWi2C>4o (1) and tetrabutylammonium)S-dodecatungs-tosilicate, [N(C4H9)4]4SiWi204o (2) were solved by X-ray diffraction. (1) crystallizes tetragonal in the space group 14 with lattice parameters a = 14.642 A; c= 12.706 A; (2) orthorhombic, space group P2i2x2i with a = 29.277 A, b = 22.181 A and c = 15.381 A. The differences between the two isomeric heteropolyanions are discussed, especially the distances and angles between the tungsten atoms. Comparison of characteristic differences in the vibrational spectra permits the identifica-tion of the isomeric anions. | | |
Reference
| Z. Naturforsch. 36b, 161—171 (1981); eingegangen am 22. Oktober 1980 | | |
Published
| 1981 | | |
Keywords
| Dodecatungstosilicates, Isomers, X-ray, Vibrational Spectra | | |
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| default:Reihe_B/36/ZNB-1981-36b-0161.pdf | | | Identifier
| ZNB-1981-36b-0161 | | | Volume
| 36 | |
20 | Author
| Ulrich Müller, ChristinaNorbert Mronga, Kurt Schumacher, Dehnicke | Requires cookie* | | Title
| Die Kristallstrukturen von PPh4[SnCl3] und PPh4[SnBr3] The Crystal Structures of PPh4[SnCl3] and PPh4[SnBr3]  | | | Abstract
| PPh4[SnCl3] and PPh4[SnBr3] were prepared by reaction of PPh4X with SnX2 in CH2X2 solutions (X — Cl, Br). The vibrational spectra of the [SnX3] e ions show three SnX3 stretching frequencies, which is caused by deviations from the ideal C3v symmetry. In the crystal structure determinations these deviations show up by slightly different Sn-X bond lengths which are explained by differing hydrogen bridges to phenyl-H atoms. The isotypic crystal structures of both compounds were determined and refined from X-ray diffraction data (R values: 0.042 and 0.034). Although triclinic (space group Pi), the structures are closely related to the tetragonal AsPh4[RuNCl4] structure type. Very pure SnBr2 is prepared by the reaction of PPh4[SnBr3] with AlBr3 in CH2Br2 solution. | | |
Reference
| Z. Naturforsch. 37b, 1122—1126 (1982); eingegangen am 19. Mai 1982 | | |
Published
| 1982 | | |
Keywords
| Preparation, Tetraphenylphosphonium Trihalo Stannates, Vibrational Spectra, Crystal Structures | | |
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| default:Reihe_B/37/ZNB-1982-37b-1122.pdf | | | Identifier
| ZNB-1982-37b-1122 | | | Volume
| 37 | |
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