Research Article
Effect of Counterion on the Solvatochromic Properties of Heteroleptic Chelate Copper(II) Complexes
Table 3
Electronic absorption maxima of the complexes in various solvents: /103 cm−1 (/M−1cm−1).
| | Solvent | Complex 1 | Complex 2 | Complex 3 | Complex 4 |
| | DCM | 17.33 (81) | 16.64 (69) | 17.51 (71) | 17.64 (104) | | NM | 18.05 (100) | 17.95 (107) | 18.05 (89) | 18.08 (120) | | AN | 16.81 (88) | 16.98 (93) | 17.04 (78) | 17.01 (100) | | Ac | 17.12 (95) | 16.95 (80) | 17.04 (116) | 17.01 (124) | | THF | 16.50 (101) | 16.75 (116) | 16.89 (90) | 16.89 (94) | | MeOH | 16.75 (51) | 16.81 (80) | 16.86 (110) | 16.84 (118) | | DMF | 16.42 (143) | 16.34 (99) | 16.37 (116) | 16.26 (111) | | DMSO | 15.48 (108) | 16.10 (69) | 16.18 (113) | 16.10 (117) | | Py | 15.15 (69) | 15.38 (75) | 15.48 (113) | 15.34 (69) |
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