Table 2.
FT-IR Spectral data of the Schiff base [BEB] and its metal complexes.
| Compound | ν(OH)/(H2O) | ν(CH3/CH2) | ν(SCN) | ν(C=N) | ν(C=C) | ν(NO3/OAc) | ν(C−O) | ν(M−N) | ν(M−O) |
|---|---|---|---|---|---|---|---|---|---|
| asy&(sy) | asy&(sy) | ||||||||
| BEB | 3404mb | 3166w, 3057w | 1613vs | 1538m, 1436m | 1266s | ||||
| [Cu(BEB)Cl]·2H2O | 3384mb | 3158w, 3067w | 1588s | 1538m, 1436m | 1237s | 594m | 452m | ||
| [Cu(BEB)Br]·H2O | 3392mb | 3167w, 3064w | 1589vs | 1539m, 1435m | 1237s | 526m | 455m | ||
| [Cu(BEB)SCN]·2H2O | 3392mb | 3157w, 3059w | 2161m | 1589vs | 1539s, 1435w | 1241s | 567m | 455m | |
| (2096m) | |||||||||
| [Cu(BEB)NO3]·3H2O | 3378mb | 3160w, 3062w | 1590vs | 1539m, 1436w | 1417w | 1240m | 593m | 457m | |
| (1297m) | |||||||||
| [Cu(BEB)CH3COO]·2H2O | 3396mb | 3162w, 3062w | 1589s | 1542w, 1435w | 1538m | 1240m | 597m | 462m | |
| (1340m) |
Abbreviations: s = strong; b = broad; v = very; m = medium; w = weak.