Table 3.
Magnetic properties, and electronic spectra data of the synthesized mixed ligand complexes.
| Mixed ligand complexes | Magnetic moment values (B.M) | UV–Vis spectrophotometer data λmax (nm) | ligand field parameters | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| µeff | µSO | n(theory) | Hybrid orbitals | π → π | n → π | CTI | d → d transition/peak assignment | Dq (cm−1) | B (cm−1) | Β/β % | LFSE (cm−1) | |
| [FeL(bpy)]Cl3.H2O | 5.97 | 5.92 | 5 | sp3d2 | 248 286 | 
 327 333  | 
 379 386  | 
 494; 6A1g → 4T1g 534; 6A1g → 4T2g  | 
– | – | – | – | 
| [CoL(bpy)]Cl2.3H2O | 4.31 | 3.87 | 3 | sp3d2 | 
 258 296  | 
 323 343  | 
 375 383  | 
 571; 4T1g(F) → 4A2g(F) 628; 4T1g(F) → 4T1g(P)  | 
1005 | 738 | 0.66 /34.11 | 8.04 × 103 | 
| [CuL(bpy)]Cl2 | 1.65 | 1.73 | 1 | sp3d2 | 
 251 300  | 
 307 328  | 
 361 372  | 
 707; 2B1g → 2A1g 2B1g → 2Eg  | 
– | – | – | – | 
| [CdL(bpy)](NO3)2 | Diamagnetic | 
 259 288  | 
 314 339  | 
 368 384  | 
– | – | – | – | – | |||