The totally symmetric Raman stretching vibration v(Mo-Mo) of quadruple molybdenum-molybdenum bonds varies linearly with the mass of molybdenum and its ligands
The electronic (400-800nm), i.r. and Raman (20-400cm-1) spectra of several hexahalo-di(aquo)dimolybdate(II) anions, Mo2X6(H2O)22- (X=Cl, Cl/Br, Br and I) containing quadruple metal-metal bonds have been investigated. The electronic spectra of the solid compounds at 300K show intense bands in the vis...
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| Published in: | Transition metal chemistry (Weinheim) Vol. 23; no. 2; p. 191 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
Dordrecht
Springer Nature B.V
01-04-1998
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | The electronic (400-800nm), i.r. and Raman (20-400cm-1) spectra of several hexahalo-di(aquo)dimolybdate(II) anions, Mo2X6(H2O)22- (X=Cl, Cl/Br, Br and I) containing quadruple metal-metal bonds have been investigated. The electronic spectra of the solid compounds at 300K show intense bands in the visible region (510-580nm) assigned to the expected delta delta transitions. From the i.r. and Raman spectra the skeletal and stretching modes in these binuclear anions have been identified. The metal-metal v(MoMo) stretching vibrational wavenumbers vary linearly as a function of the total mass, including molybdenum and its ligands. From this relationship, the mass of the ligands and that of the unknown material have been determined and compared with analytical results. In conclusion, the results are in very good agreement.[PUBLICATION ABSTRACT] |
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| ISSN: | 0340-4285 1572-901X |
| DOI: | 10.1023/A:1006911629861 |