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1Author    HelgeW. IllnerRequires cookie*
 Title    Das Infrarotspektrum von matrixisoliertem SFC1 Infrared Spectrum of M atrix Isolated SFCl  
  Reference    Z. Naturforsch. 39b, 314 (1984); eingegangen am 27. September/29. November 1983 
  Published    1984 
  Keywords    Sulfur Chloride Fluoride, IR Spectra, Force Constants 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0314.pdf 
 Identifier    ZNB-1984-39b-0314 
 Volume    39 
2Author    Z. NaturforschRequires cookie*
 Title    Schwingungsspektren und Kraftkonstanten von linearen  
 Abstract    Anionen [MnP2]4' und [M!X2]5-(M11 = Zn, Cd, Hg; M1 = Cu, Ag; X = E15) in den Kaliumverbindungen und in Na4[HgP2] V ibrational S pectra and Force C onstants of the L inear A nions [M n P2]4-and [M IX 2]5" (M 11 = Z n, Cd, Hg; M 1 -Cu, Ag; X -E 15) in Potassium C om pounds and in N a4[H gP2] M eh m et S om er The vibrational spectra of the title compounds have been recorded and interpreted based on the symmetry o f the isolated linear anions [M X2]"~ (M = Cu, Ag, Zn, Cd. Hg; X = P, As, Sb). The calculated stretching force constants are: f(M n -P) = 1.89 {M11 = Zn}, 1.66 {Cd}, 1.83 {Hg} N cm -1 and f(C u -X) = 1.27 {X = P}, 0.99 {Sb} and f(A g -A s) = 0.93 N c m " 1 respectively. These are compared with those of the isoelectronic m olecules M nY 2 and [M'Y2]~ in relation to charge effects (M 11 = Zn, Cd, Hg; M 1 = Cu, Ag; Y = Cl, Br). 
  Reference    Z. Naturforsch. 49b, 1203—1206 (1994); eingegangen am 22. März 1994 
  Published    1994 
  Keywords    Vibrational Spectra, Force Constants, Zintl Phases 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1203.pdf 
 Identifier    ZNB-1994-49b-1203 
 Volume    49 
3Author    G. KlicheRequires cookie*
 Title    L a ttic e  
 Abstract    V ib r a tio n s o f th e C o o p e rite s P d O a n d P t S The vibrational spectra of the cooperite type compounds PdO and PtS (space group P42/mmc — D4h, Z = 2) are analyzed. Good agreement between experimental and calculated lattice vibration frequencies is obtained using a force field which includes short-range force constants only. This demonstrates a highly covalent bonding character of the cooperites. 
  Reference    Z. Naturforsch. 44a, 169—172 (1989); received December 3 1988 
  Published    1989 
  Keywords    Vibrational spectra, normal coordinate analysis, force constants, cooperite-type com­ pounds 
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 TEI-XML for    default:Reihe_A/44/ZNA-1989-44a-0169.pdf 
 Identifier    ZNA-1989-44a-0169 
 Volume    44 
4Author    K. Irmer, W. PreetzRequires cookie*
 Title    Normalkoordinatenanalyse an Oktaederkomplexen des  
 Abstract    Typs [MXW Y6_ J z", M = Ru, Rh, Os, Ir, Pt; X # Y = F, Cl, Br; n = 0 -6 ; z = 1 -3 Normal Coordinate Analysis on Octahedral Complexes of the Type [MX"Y6_ " r , M = Ru, Rh. Os, Ir, Pt; X # Y = F, Cl, Br; n = 0 -6 ; z = 1 -3 Normal coordinate analyses for all com pounds o f the series [MX"Y6_Jr~, M = Ru, Rh. Os, Ir, Pt; X Y = F, Cl, Br; n = 0 -6 ; z = 1 -3 , including the geometric isomers for n = 2, 3, 4 have been performed, based on a general valence force field. For the isostructural species o f the point symmetries Oh (n -0, 6), D 4h (2, 4, trans), C4v (1, 5), C3v (3,fac), C2v (2, 4, cis\ 3, mer) sequences o f decreasing frequencies are established. Due to the different trans influences X < Y (F < Cl < Br) in asymmetric axes X ' -M -Y ' , the M -Y ' bonds are strengthened and the M -X ' bonds are weakened, as indicated by valence force constants for M -Y' up to 21 % high­ er (P t-C l'), for M -X ' down to 18% lower (P t-F '), as compared with the values calculated for symmetrical X -M -X and Y -M -Y axes, respectively. The influence o f the different central ions and their oxidation numbers on the force field is discussed. 
  Reference    Z. Naturforsch. 46b, 1200—1206 (1991); eingegangen am 12. April 1991 
  Published    1991 
  Keywords    Normal Coordinate Analysis, Force Constants, /rans-Influence, Mixed-Ligand Complexes 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1200.pdf 
 Identifier    ZNB-1991-46b-1200 
 Volume    46 
5Author    Lothar Ohse, Mehmet Somer, Wolfgang Blase, Gerhard CordierRequires cookie*
 Title    Verbindungen mit SiS2-isosteren Anionen i  
 Abstract    [AlX4/2 3 ] und i |InP4/23 ]: Synthesen, Kristallstrukturen und Schwingungsspektren von Na3|AlX2], K2Na[AlX2] und K3IInP2] (X = P, As) Com pounds with SiS2 Isoelectronic Anions l [A1X4 23-] and i [InP4/23-]: Synthesis, Crystal Structures and Vibrational Spectra of N a3[AlX2], K 2Na[AlX2] and K 3[InP2] (X = P, As) The title compounds were prepared from stoichiometric mixtures o f the elements or from alkali metals (Na, K), NaX (KX) and MX (M = Al, In; X = P, As) at 1000 K. The crystal structures (Ibam, No. 72) are characterized by infinite chains o f edge sharing tetrahedra j, [MX4;,3'] (M = Al, In; X = P, As) which are isoelectronic to SiS2. The vibrational spectra can be interpreted with respect to the symmetry P(2/m 2/c) 42/ m -D 4h of the isolated polymeric chain ][M X 4(23"]. The assignment of the observed frequen­ cies is supported by a normal coordinate analysis using the fragment method. 
  Reference    Z. Naturforsch. 48b, 1027—1034 (1993); eingegangen am 29. März 1993 
  Published    1993 
  Keywords    Zintl Phases, Preparation, Crystal Structure, V ibrational Spectra, Force Constants 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1027.pdf 
 Identifier    ZNB-1993-48b-1027 
 Volume    48 
6Author    W. Brockner, H. Hovdan, S. J. CyvinRequires cookie*
 Title    Kraftkonstanten, mittlere Schwingungsamplituden, Coriolis-Kopplungskonstanten und thermodynamische Funktionen der Moleküle W OCl4 und WOBr4  
 Abstract    A normal co-ordinate analysis of the m olecules W 0C 14 and WOBr4 has been carried out follow ing W ilson's FG matrix method. V alence force constants based on known (W OCl4) and estimated (W OBr4) m olecular parameters have been evaluated. The results support the assignm ent of the known Raman spectra of W 0C14 . A lso the m ean am plitudes of vibration and the perpendicular 
  Reference    (Z. Naturforsch. 29a, 620 [1974]; eingegangen am 5. Januar 1974) 
  Published    1974 
  Keywords    Force Constants, Mean Amplitudes, Coriolis Coupling Constants, Thermodynamic Functions, WOCZ 4, WOBri 
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 TEI-XML for    default:Reihe_A/29/ZNA-1974-29a-0620.pdf 
 Identifier    ZNA-1974-29a-0620 
 Volume    29 
7Author    V. Lorenzena, W. Preetz, W. Kellerb, W. HauboldRequires cookie*
 Title    Schwingungsspektren und Normalkoordinatenanalyse der Tetrahalogeno-c/os0-l,2-diphosphahexaborane P2B4X4, X = CI, Br Vibrational Spectra and Normal Coordinate Analysis of the Tetrahalogeno-c/oso-l,2-diphosphahexaboranes P2B4X 4, X = Cl, Br  
  Reference    Z. Naturforsch. 54b, 1229—1234 (1999); eingegangen am 10. August 1999 
  Published    1999 
  Keywords    Tetrahalogeno-c/aso-1, 2-diphosphahexaboranes, Vibrational Spectra, Normal Coordinate Analyses, Force Constants 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1229.pdf 
 Identifier    ZNB-1999-54b-1229 
 Volume    54 
8Author    H. Hovdan, S. J. Cyvin, W. BrocknerRequires cookie*
 Title    Schwingungsberechnungen der isotopen VOCl3-Moleküle, des VOBr3 und der Verbindungen VOCln Br3_n, sowie einige Molekularkonstanten der Titelverbindungen  
 Abstract    In order to determine the isotopic splittings of the vibrational frequencies of isotopieally sub­ stituted vanadium oxytrichloride and to present the correlation between V0C13 and VOBr3 a set of force fields was constructed for the isotopic species of VOCl3 , VOCLBr, VOCIBr, and VOBr3 . The conventional descriptions of the fundamentals are supported by the calculated potential energy distribution in all cases. Furthermore the calculations of certain molecular constants such as the mean amplitudes, their corresponding /^-values, the Coriolis coupling constants of the -type and some thermodynamic quantities have been performed. 
  Reference    (Z. Naturforsch. 29a, 706 [1974]; eingegangen am 21. Februar 1974) 
  Published    1974 
  Keywords    Isotopic VOCl3 Species, VOCl, Br, VOCIBr2, VOBr3, Force Constants, Isotopic Splitting, PED, Mean Amplitudes, Coriolis Coupling Constants, Thermodynamic Functions 
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 TEI-XML for    default:Reihe_A/29/ZNA-1974-29a-0706.pdf 
 Identifier    ZNA-1974-29a-0706 
 Volume    29