Synthesis of Triphenyltin (IV) and Dibutyltin (IV) Complexes of 1-Aryl-2,5-dithiohydrazodicarbonamides and Their Characterization

Table 2

IR spectral bands (cm⁻¹) and their assignments.

Complex	𝜈 (N–H)	𝜈 (NH2)	[𝛽(N–H) + 𝜈 (CN)] Thiomide I	[𝜈 (CN) + 𝛽 (N–H)] Thiomide II	[𝜈 (C=S)/C–S)] Thiomide IV	𝛽 (NH2)	𝜈 (Sn–C)	𝜈 (Sn–S)	𝜈 (Sn–N)	ν (N–N)
HPhthc	3420; 3390	3210; 3150	1500	1300	840	1640	—	—	—	980
Ph3Sn(Phthc)	3410; 3380	3200; 3150	1555	1385	770	1650	600	384	354	1005
Bu2Sn((Phthc))2	3400; 3364	3180; 3140	1560	1390	760	1645	590	370	360	1010
HEtOPhthc	3400; 3380	3220; 3140	1520	1300	810	1610	—	—	—	960
Ph3Sn(EtOPhthc)	3390; 3370	3210; 3120	1570	1365	720	1605	585	380	340	980
Bu2Sn(EtOPhthc)2	3400; 3360	3220; 3110	1580	1360	710	1610	610	397	350	985
HBzthc	3410; 3370	3250; 3180	1510	1320	880	1600	—	—	—	900
Ph3Sn(Bzthc)	3400; 3365	3240; 3160	1535	1380	805	1590	617	390	310	940
Bu2Sn(Bzthc)2	3400; 3360	3250; 3150	1540	1370	810	1580	605	380	315	950