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'IR spectra' in keywords Facet   Publication Year 1990  [X]
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1990[X]
1Author    Michael Schäfer, Jürgen Pebler, Beatrice Borgsen, Frank Weller, K. Urt DehnickeRequires cookie*
 Title    21Sb-Mössbauer-spektroskopische und strukturchemische Untersuchungen an Kronenetherkomplexen SbX3(15-Krone-5) mit X = F, Cl, Br, I. Eine Analyse der Orbitalbesetzungszahlen 12lSb-M össbauer-Spectroscopic and Structural Investigations on Crown Ether Complexes SbX3(15-Crown-5) with X = F, Cl, Br, I. A Population Analysis Crown Ether C om plexes SbX3(15-crown-5)  
 Abstract    The crown ether complexes SbX3(15-crown-5) with X = F, Cl, Br, and I have been prepared by reactions o f 15-crown-5 with the corresponding antimony trihalides in acetonitrile solu­ tions. The com pounds were characterized by IR spectroscopy as well as by l21Sb-M össbauer spectroscopy. A m ethod o f orbital population analysis utilizing both M össbauer isomer shifts and quadrupole coupling has been developed for Sb(III) antimony halides and their crown ether com plexes. SbF 3(l 5-crown-5) was also characterized by an X-ray structure determination: Space group P 2 ,/«, Z = 4, 3628 observed unique reflexions, R = 0.032. Lattice dim ensions at 19 °C: a = 891.54(6), b = 1277.26(6), c = 1277.66(7) pm, ß = 95.029(4)3. The com plex has a molecular structure in which the antimony atom is surrounded by three F-atom s with mean bond lengths o f 192.4 pm and by the five oxygen atom s o f the crown ether molecule with mean bond lengths o f 293.9 pm. 
  Reference    Z. Naturforsch. 45b, 1243—1250 (1990); eingegangen am 5. März/9. Mai 1990 
  Published    1990 
  Keywords    Syntheses, IR Spectra, 12lSb-M össbauer Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1243.pdf 
 Identifier    ZNB-1990-45b-1243 
 Volume    45 
2Author    Horst Grünewald, Heiner HomborgRequires cookie*
 Title    Darstellung und spektroskopische Charakterisierung von Nitridophthalocyaninatomangan(V) Preparation and Spectroscopical Characterization of Nitridophthalocyaninatom anganese(V)  
 Abstract    Nitridophthalocyaninatomanganese(V), M nN Pc(2-), has been prepared by oxidation of [Mn(OH):Pc(2-)]~ with chlorine in the presence of excess ammonia in dichloromethane as a chemically very stable, diamagnetic microcrystalline blue powder. The band at 1053 cm 1 in the infrared and resonance Raman spectra is assigned to v(Mn=N). The strong resonance en­ hancement of v(Mn=N) coincides with an electronic transition at 461 nm assigned to (N —> Mn) electron transfer. The UV-VIS spectrum in 1-chloronaphthalene is compared with that of the M nN Pc(2-)-H -,S04 adduct and the phthalocyanine-7r-cation radical [MnNPc(l -) ] +. 
  Reference    Z. Naturforsch. 45b, 483—489 (1990); eingegangen am 30. November 1989 
  Published    1990 
  Keywords    Nitridophthalocyaninatomanganese(V), IR Spectra, Resonance Raman Spectra, UV-VIS Spectra 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-0483.pdf 
 Identifier    ZNB-1990-45b-0483 
 Volume    45 
3Author    Hans-W Alter, Swidersky, K. Urt DehnickeRequires cookie*
 Title      
 Abstract    [OsC14(C H 3C N)2] • 1/2C H 3CN has been pre­ pared by the reaction o f OsCl5 with acetonitrile in a slow reaction at room temperature, forming red, moisture sensitive crystals. The com pound was characterized by IR spectroscopy as well as by an X-ray structure determination. Space group Pnma, Z = 4, 1281 observed unique reflexions, R = 0.031. Lattice dimensions at 20 °C: a = 1032.5(5), b = 1356.0(7), c = 975.9(5) pm. The complex has a molecular structure, in which the osmium atom is octahedrally coordinated by four chlorine atoms and by two N -atom s o f the cis-coordinated acetonitrile molecules. The included C H 3C N m olecules are disordered in two posi­ tions. 
  Reference    Z. Naturforsch. 45b, 1210—1212 (1990); eingegangen am 26. Februar 1990 
  Published    1990 
  Keywords    Acetonitrile Solvate o f Osmium Tetrachloride, Synthesis, IR Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1210_n.pdf 
 Identifier    ZNB-1990-45b-1210_n 
 Volume    45 
4Author    Jürgen Pebler, K. Urt Dehnicke, Dieter FenskeRequires cookie*
 Title    Acetylenkomplexe von Rhenium(+VI). Die Kristallstrukturen von |ReCl4(/i-C3H 7—C = C -/i-C3H 7)(POC13)] und ReCl4(THF)2  
 Abstract    Alkyne Complexes o f Rhenium(+ VI). The Crystal Structures of [ReCl4(«-C3H 7-C = C -h-C 3H 7)(POC13)] and ReCl4(T H F)2 Hans-W alter Swidersky, The results o f the magnetic susceptibility measurements o f the previously reported rhenium alkyne complexes [ReCl4(P h C = C P h)]2 • 2 C H 2C12 and [ReCl4(P hC =C P h)(C H 3CN)] in the tem­ 
  Reference    Z. Naturforsch. 45b, 1227—1234 (1990); eingegangen am 20. Februar 1990 
  Published    1990 
  Keywords    Alkyne Complexes o f Rhenium( + VI), IR Spectra, M agnetic Susceptibility, Crystal Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1227.pdf 
 Identifier    ZNB-1990-45b-1227 
 Volume    45