Antineoplastic Activity of New Transition Metal Complexes of 6-Methylpyridine-2-carbaldehyde-N(4)-ethylthiosemicarbazone: X-Ray Crystal Structures of [VO2(mpETSC)] and [Pt(mpETSC)Cl]

Table 2

Infrared and Raman spectral data of HmpETSC and its complexes${}^a.$

Compound	$v$(NH)	$v$(HC=N)	$v$(C=C)	$v$(N=CS)	$v$(N–N)	$v$(CS)	$v$(M– N)	$v$(M–S)	$v$(M–Cl)
HmpETSC	3267	1589	1530	—	992	812	—	—	—
		1607	1579		1006	824
$[{\text{VO}}_2(\text{mpETSC})]$	3214	1652	1613	1576	1017	787	427		926${}^{\text{b}}$
		1651	1570	1586	1019	754	427	343	937${}^{\text{b}}$
$[\text{Zn}(\text{HmpETSC}){\text{Cl}}_2]$	3290	1625	1596		1009	805	466
		1626	1598		1009	793	427	317	300
$[\text{Ru}{({\text{PPh}}_3)}_2{(\text{mpETSC})}_2]$	3383	1572	1528	1479	999	788	465
$[\text{Pd}(\text{mpETSC})\text{Cl}]$	3286	1608	1582	1572	1008	784	454
		1617	1580	1570	1022	787	462	345	297
$[\text{Pt}(\text{mpETSC})\text{Cl}]$	3322	1607	1580	1570sh	1020	779	424
		1609	1584	1564	1009	779	421	330	306

${}^{\text{a}}$Raman data are in bolds,${}^{\text{b}}v$(O=V=O) sym and asym.