Research Article
Studies on Synthesis and Spectral Characterization of Some Transition Metal Complexes of Azo-Azomethine Derivative of Diaminomaleonitrile
Table 3
Electronic spectral data of CDHBDMN and its metal(II) complexes.
| | Compound | (cm−1) | Transition | Geometry | (B.M.) | | ε (L mol−1 cm−1) |
| | (CDHBDMN) | 25125 (2002) | ILCT* | — | — | | 29069 (4490) | ILCT | | VO(CDHBDMN) | 12345 (152) |
2B2→2E | Square pyramidal
| 1.76 | 20120 (280)
|
2B2→ 2B1 | | Co(CDHBDMN) | 15748 (182) |
2A1g2B2g | Square planar | 2.51 | | Ni(CDHBDMN)·(H2O)2 | 10989 (216) |
3A2g(F)→3T2g(F) | | | | 17636 (210) |
3A2g(F)→3T1g(F) | Octahedral | 3.15 | | 23041 (279) |
3A2g(F)→3T1g(P) | | | | Cu(CDHBDMN) | 18903 (240)
|
2B1g→2A1g | Square planar | 1.87 |
|
|
*Intraligand charge transfer.
|
