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1Author    IhsanA M JasimRequires cookie*
 Title    Zur Reaktion von Hexamethyldistannoxan und Hexamethyldistannthian mit Phosphor-oxo-bzw. -thio-halogeniden. Schwingungsspektren von (Me2PS)20 und (Me2PS)2S A bdel-Fattah Shihada  
 Abstract    M e3S n 0 2PCl2 and (M e2PS)20 are prepared from the reactions o f (M e3Sn)20 with PO C l3 (1:1) and with M e2PSCl (1 :2), respectively. The reactions of (M e3Sn)2S with M e2PSCl and with PSBr3 lead to the formation o f (M e2PS)2S and P4S9, respectively. PO C l3 reacts with (M e3Sn)2S to give unidentified products as a result o f O/S exchange. The i.r. and Raman spectra o f the solids (M e2P S)20 and (M e2PS)2S and the Raman spectra of the m olten com pounds are reported and the frequencies assigned. 
  Reference    Z. Naturforsch. 39b, 783—787 (1984); eingegangen am 16. Januar 1984 
  Published    1984 
  Keywords    R eactions, Preparations, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0783.pdf 
 Identifier    ZNB-1984-39b-0783 
 Volume    39 
2Author    A. Bdel-Fattah, Shihada, HekmatR. YousifRequires cookie*
 Title    Preparation and Vibrational Spectra of M e2S n (0 2PM e2)2, Cl2S n (0 2PMe2)2 and A l( 0 2PM e2)3  
 Abstract    M e2S n (0 2PM e2)2 has been prepared from the reaction o f M e2P 0 2H and M e2SnS in benzene, and A l(0 2PM e2)3 and Cl2S n (0 2PM e2)2 have obtained from the reaction o f M e2P 0 2H with AlClj and SnCl4, respectively in C H 2C12. The vibrational spectra o f the com pounds were found to be consistent with polymeric structures with hexacoordinated metal atoms. 
  Reference    Z. Naturforsch. 46b, 1568—1570 (1991); eingegangen am 29. April 1991 
  Published    1991 
  Keywords    Reactions, Preparations, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1568.pdf 
 Identifier    ZNB-1991-46b-1568 
 Volume    46 
3Author    Requires cookie*
 Title    Perfluormethyl-Element-Liganden, XI1 Die Schwingungsspektren von (CF3)2EMn(CO)5 (E = P , As)  
 Abstract    Pernuorom ethyl Elem ent Ligands, X I 1 V ibrational Spectra o f (CF3)2EM n(CO)5 (E = P, As) R e i n h a r d D e m u t h J o s e p h G r o b e u n d R o b e r t R a u The gas phase IR and liquid phase IR and Raman spectra of (CF3)2 PMn(CO)s and (CF3)2 AsMn(CO)5 have been recorded. The spectra are assigned on the basis of a normal coordinate analysis using a transferred force field. 
  Reference    (Z. Naturforsch. 30b, 539—543 [1975]; eingegangen am 10. April 1975) 
  Published    1975 
  Keywords    Carbonyl Derivatives, Vibrational Spectra, Liquid Phase 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0539.pdf 
 Identifier    ZNB-1975-30b-0539 
 Volume    30 
4Author    Helmut Rieskamp, Rainer MattesRequires 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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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-1453.pdf 
 Identifier    ZNB-1976-31b-1453 
 Volume    31 
5Author    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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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-1239.pdf 
 Identifier    ZNB-1977-32b-1239 
 Volume    32 
6Author    Franz Gerstner, Johann WeidleinRequires 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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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0024.pdf 
 Identifier    ZNB-1978-33b-0024 
 Volume    33 
7Author    Tetraphenylphosphonium-Isopolymolybdates, Roger Grase, Joachim FuchsRequires 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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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0533.pdf 
 Identifier    ZNB-1978-33b-0533 
 Volume    33 
8Author    Gerhard Thiele, Peter HilfrichRequires 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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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0597.pdf 
 Identifier    ZNB-1978-33b-0597 
 Volume    33 
9Author    H. Homborg, W. KalzRequires cookie*
 Title    Darstellung und Charakterisierung von Tetraalkylammonium-lithium- phthaloeyaninen Preparation and Characterisation of Tetraalkylammonium-lithium-phthalocyanines  
 Abstract    The preparation of some tetraalkylammonium-lithium-phthalocyanines is described. In contrast to the known dilithium-phthalocyanine these quarternary "onium"-salts are, dependent on the size of the alkyl groups, soluble in non-polar, aprotic solvents. The electronic spectra are investigated as a film on a quartz disk at 10 K. Under these condi-tions a large number of narrow bands is observed instead of the normally diffuse ones. Solid state resonance Raman spectra were studied at 85 K by a method involving spinning KBr disks. It is shown that nearly all the lines are as a rule very sensitive to excitation conditions. The vibrational spectra are compared with the structural features of the compounds. 
  Reference    Z. Naturforsch. 33b, 968—975 (1978); eingegangen am 26. Juni 1978 
  Published    1978 
  Keywords    TetraalkylammoniumJithium-phthalocyanines, Vibrational Spectra, UVS Spectra 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0968.pdf 
 Identifier    ZNB-1978-33b-0968 
 Volume    33 
10Author    Ralf Steudel, Jürgen Steidel, Torsten Sandow, Fritz SchusterRequires 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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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1198_n.pdf 
 Identifier    ZNB-1978-33b-1198_n 
 Volume    33 
11Author    Hans-Jörg Widler, Johann WeidleinRequires 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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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0018.pdf 
 Identifier    ZNB-1979-34b-0018 
 Volume    34 
12Author    Dietrich Breitinger, Wilfred Morell, Knut GrabetzRequires 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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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0390.pdf 
 Identifier    ZNB-1979-34b-0390 
 Volume    34 
13Author    Joachim MüllerRequires cookie*
 Title    5 N—NMR-Spektroskopische Untersuchung von Dimethylaluminiumazid, Dimethylgalliumazid und Dimethylarsenazid 15 N NMR Spectra of the Azides of Dimethylaluminium, Dimethylgallium, and Dimethylarsenic  
  Reference    Z. Naturforsch. 34b, 531—535 (1979); eingegangen am 15. November/28. Dezember 1978 
  Published    1979 
  Keywords    Azides, 15 N NMR, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0531.pdf 
 Identifier    ZNB-1979-34b-0531 
 Volume    34 
14Author    Joachim Fuchs, Hans-Ulrich Kreusler, Achim FörsterRequires cookie*
 Title    Die Kristallstruktur des Rubidiumtrimolybdatosulfats Rb2SMo3013 The Structure of the Rubidiumtrimolybdatosulfate Rb2SMo30i3  
 Abstract    By acidification of an aqueous solution of Rb2MoÜ4 with sulfuric acid the rubidium trimolybdatosulfate Rb2SMo30i3 • 0.72 H20 is formed. A compound with the same composition and evidently the same structure but free of crystal water is obtainable by melting a mixture of Rb2SC>4 and M0O3 in molar ratios 1:3. The X-ray structure in-vestigation shows the anion to be built up from double chains of MoOß octahedra. Always three neighbouring octahedra are linked about common vertices with one SO4 tetrahedron. The tetrahedra are alternating above and below the double chain. -Rb2SMo30i3 is the first known macromolecular heteropolymolybdate. 
  Reference    Z. Naturforsch. 34b, 1683—1685 (1979); eingegangen am 6. August 1979 
  Published    1979 
  Keywords    Heteropolysulfate, Rubidiumtrimolybdatosulfate, X-ray, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1683.pdf 
 Identifier    ZNB-1979-34b-1683 
 Volume    34 
15Author    Oskar Glemser, Eckehard Kindler, Bernt Krebs, Rüdiger Mews, Frank-Michael Schnepel, Joachim WegenerRequires 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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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0657.pdf 
 Identifier    ZNB-1980-35b-0657 
 Volume    35 
16Author    Ralf Steudel, Jürgen Steidel, Norbert RautenbergRequires 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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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0792.pdf 
 Identifier    ZNB-1980-35b-0792 
 Volume    35 
17Author    Abdel-Fattah Shihada, Rehab MajedRequires cookie*
 Title    Darstellung und spektroskopische Untersuchungen von Me3SiOP(S)Cl2, Me3SiOP(S)Br2 sowie Me3Si0P(0)Br2 Preparation and Spectroscopic Properties of Me3SiOP(S)Cl2, Me3SiOP(S)Br2 and Me3Si0P(0)Br2  
 Abstract    Trimethylsilyl dichlorothiophosphate (Me3SiOP(S)Cl2) and trimethylsilyl dibromothio-phosphate (Me3SiOP(S)Br2) are prepared by reactions of (Me3Si)2S with P0C13 and POBr3, respectively. The reaction of POBr3 with Me3SiOCOCH3 in the mol ratio 1:1 gives Me3Si0P(0)Br2, a molar ratio of 1:3 leads to (Me3SiO)3PO. The vibrational spectra have been used to elucidate the structures of the compounds. It was found that -0P(S)C12 as well as -OP(S)Br2 are linked to the trimethylsilyl group through the oxygen atom. 
  Reference    Z. Naturforsch. 35b, 976—980 (1980); eingegangen am 7. März 1980 
  Published    1980 
  Keywords    Preparation, Properties, Vibrational Spectra, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0976.pdf 
 Identifier    ZNB-1980-35b-0976 
 Volume    35 
18Author    Joachim Fuchs, Axel Thiele, Rosemarie PalmRequires 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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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0161.pdf 
 Identifier    ZNB-1981-36b-0161 
 Volume    36 
19Author    Joachim Fuchs, Axel Thiele, Rosemarie PalmRequires cookie*
 Title    Structure and Vibrational Spectrum of the a-Undecatungstophosphate Na2[N(CH3)4]4HPWii039 * 7 H20  
 Abstract    The crystal structure of the compound Na2[N(CH3)4]4HPWn039 • 7H20 was solved by X-ray diffraction. It crystallizes in the space group C2/m with lattice parameters a= 23.895 Ä, b = 11.417 A, c = 28.930 A, ß= 126.0°. The distances between the tungsten atoms and the kind of bridging by oxygen atoms prove the a-isomer. The differences between the vibration spectra of a-undecatungsto-phosphate and a-dodecatungstophosphate are discussed. 
  Reference    Z. Naturforsch. 36b, 544—550 (1981); eingegangen am 2. Februar 1981 
  Published    1981 
  Keywords    a-Undecatungstophosphate, X-ray, Vibrational Spectra, Thermogravimetry 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0544.pdf 
 Identifier    ZNB-1981-36b-0544 
 Volume    36 
20Author    Ulrich Müller, ChristinaNorbert Mronga, Kurt Schumacher, DehnickeRequires 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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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1122.pdf 
 Identifier    ZNB-1982-37b-1122 
 Volume    37