Symbol

NH of amide (isatin)

C=O

of C2-isatin

C=O B-lactam (Amide + ester)

C=N

-COO

Asym. (sym)

H2O

Lattice (coordinate)

M-O-COO

(H2O)

M-N

(M-Cl)

LI

3255

(3192)

1692

1740

(1659)

1636

1568

(1367)

-

-

-

C2 Ni(II)

3252

(3194)

1694

1726

(1658)

1626

1611

(1385)

3525

(3370, 806, 768)

493

(462)

424

(336)

C1 Co(II)

3253

(3194)

1695

1728

(1659)

1625

1625

(1385) overlap

3525

(3370, 806, 752)

509

(486)

420

(370)

C3 Cu(II)

3253

(3193)

1693

1725

(1661)

1624

1624

overlap (1377)

3525

(3375, 806, 768)

486

(455)

424

(370)

C4 Cd(II)

3257

(3194)

1695

1729

(1655)

1624

1578

(1377)

3520

(3400, 802, 768)

579

(556)

440

(348)

C5 Pd(II)

3255

(3190)

1695

1730

(1658)

1628

1557

(1356)

3525

553

(536)

417

(336)

C6 Pt(IV)

3258

(3194)

1693

1725

(1659)

1626

1626 overlap (1404)

3464

556

(517)

451

(374)