| Comp. number | Molecular formula | ν(H2O/OH) | ν(NH) | ν(C=O)acetyl | ν(C=O)amide | ν(C=N)imine | ν(C=N)oxime | ν(N–O) | ν(OAc)/SO4 | ν(M–O) | ν(M–N) | ν(M–Cl) |
| (1) |
[H2L]C12H13N3O4 | 3360, 3315 | 3215 | 1700 | 1664 | 1613 | 1587 | 1147, 1000, 931 | — | — | — | — |
| (2) | [(HL)Cu(OAc)(H2O)2]·H2O C14H21N3O9Cu | 3430 3520–3080 | 3260 | 1680 | 1650 | 1605 | 1575 | 1155, 1040, 925 | 1443, 1342 | 600 | 575 | — |
| (3) | [(HL)Cu2(OAc)3(H2O)5]· C18H33N3O15Cu2 | 3431 3575–3000 | 3260 | 1709 | 1652 | 1601 | 1567 | 1170, 1066 930 | 1482, 1345 | 682 | 582 | — |
| (4) | [(H2L)2Cu(OAc)2]·3H2O C28H38N6O15Cu | 3421 3500–3180 | 3217 | 1712 | 1669 | 1601 | 1564 | 1163, 1068 925 | 1483, 1382 | 679 | 580 | — |
| (5) | [(H2L)CuCl2(H2O)]·2H2O C12H19Cl2N3O7Cu | 3434–3380 | 3141 | 1695 | 1659 | 1606 | 1533 | 1154, 1128 1013, 954 | — | 662 | 575 | 443 |
| (6) | [(H2L)Cu(SO4)(H2O)2] C12H17N3O10SCu | 3500 3250–3100 | 3202 | 1717 | 1667 | 1611 | 1529 | 1190, 1104 977, 915 | 1260, 1071, 867, 650 | 618 | 522 | — |
| (7) | [(HL)Ni(OAc)(H2O)2]·2H2O C14H23N3O10Ni | 3464 3522–3247 | 3217 | 1760 | 1674 | 1605 | 1564 | 1150 1024, 909 | 1456, 1339 | 682 | 620 | — |
| (8) | [(H2L)Ni(SO4)(H2O)2]·H2O C13H22N3O11SNi | 3428 3560–3280 | 3165 | 1700 | 1670 | 1609 | 1531 | 1160, 1102 1043, 925 | 1240, 1102, 850, 690 | 592 | 528 | — |
| (9) | [(HL)Co(OAc)(H2O)2]·3H2O C14H25N3O11CO | 3495 3560–3300 | 3189 | 1717 | 1671 | 1609 | 1526 | 1150, 1065 1022, 920 | 1465, 1326 | 624 | 535 | |
| (10) | [(H2L)Co(SO4)(H2O)2]·3H2O C13H26N3O13SCo | 3300 3560–3215 | 3215 | 1700 | 1652 | 1610 | 1553 | 1152, 1030, 956 | 1232, 1092 858, 650 | 605 | 545 | — |
| (11) | [(HL)Mn(OAc)(H2O)2]·3H2O C14H25N3O11Mn | 3408 3570–3300 | 3217 | 1695 | 1600 | 1595 | 1565 | 1170, 1149 1029, 920 | 1460, 1338 | 654 | 587 | |
| (12) | [(HL)Zn(OAc)(H2O)2]·2H2O C14H23N3O10Zn | 3315 3600–3280 | 3214 | 1700 | 1673 | 1601 | 1566 | 1154, 1039, 985 | 1523, 1391 | 597 | 535 | |
| (13) | [(H2L)Zn(SO4)(H2O)2]·3H2O C12H23N3O13SZn | 3380 3580–3280 | 3285 | 1717 | 1653 | 1603 | 1552 | 1154, 1042, 951 | 1501, 1366 | 589 | 537 | |
| (14) | [(HL)Cd(OAc)(H2O)2]·2H2O C14H23N3O10Cd | 3380 3587–3210 | 3206 | 1705 | 1675 | 1613 | 1534 | 1155, 1044, 979 | 1237, 1115, 1060, 885, 650 | 616 | 526 | |
| (15) | [(H2L)Cd(SO4)(H2O)2]·2H2O C12H21N3O12SCd | 3428 3652–3275 | 3217 | 1710 | 1652 | 1587 | 1565 | 1160, 1014, 956 | 1500, 1376 | 612 | 588 | |
| (16) | [(HL)Hg(OAc)]·H2O C14H17N3O7Hg | 3365 3525–3260 | 3200 | 1710 | 1644 | 1609 | 1543 | 1151, 1008, 936 | — | 665 | 524 | 482 |
| (17) | [(HL)Fe(Cl)2(H2O)]·3H2O C12H20N3O8Cl2Fe | | | | | | | | | | | |
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