| | 1 | Author
| K. Irmer, W. Preetz | Requires 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 | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/46/ZNB-1991-46b-1200.pdf | | | | Identifier
| ZNB-1991-46b-1200 | | | | Volume
| 46 | |
|
