Oxovanadium(IV) Complexes with Nitrogen Donors: Synthesis, Characterisation, and Biological Activities

Table 3

¹³C NMR data showing chemical shift (in ppm) values of the VO(SA/SSA) complexes with nitrogen donors.

Codes	Name of the complex	Salicylate/sulphosalicylate carbons	Ligand carbons
MB-1.	Bis(o-methylpyridine)salicylatooxovanadium^(IV); [VO(C7H4O3)(C6H7N)2]	119.5(C1), 165.8(C2), 116.5(C3), 133.3(C4), 120.1(C5), 132.6(C6), 173.2(C7)	151.1(C1), 133.8(C2), 134.4(C3) 123.0(C4) 147.5(C5), 24.3(CH3)
MB-2.	Bis(m-methylpyridine)sulphosalicylatooxovanadium^(IV); [VO(C7H4O6S)(C6H7N)2]	120.5(C1), 163.5(C2), 117.6(C3), 134.2(C4), 122.4(C5), 131.0(C6), 172.0(C7)	158.6(C1), 124.1(C2), 136.4(C3) 123.3(C4) 147.5(C5), 22.3(CH3)
MB-3.	Bis(o-aminopyridine)sulphosalicylatooxovanadium^(IV); [VO(C7H4O6S)(C5H6N2)2]	119.2(C1), 166.4(C2), 116.3(C3), 135.1(C4), 121.0(C5), 133.3(C6), 174.4(C7)	159.3(C1), 120.1(C2), 130.4(C3) 121.3(C4) 142.5(C5)
MB-4.	(1,10-Phenanthroline)sulphosalicylatooxovanadium^(IV); [VO(C7H4O6S)(C12H8N2)]	118.9(C1), 165.8(C2), 116.5(C3), 133.3(C4), 122.2(C5), 132.4(C6), 172.3(C7)	153.5(C2), 146.1(C9), 143.5(C4), 140.5(C6b), 140.0(C4b), 136.7(C7), 129.0(C6a), 128.1(C4a), 126.3(C6), 125.3(C5), 124.3(C8), 124.0(C3)
MB-5.	(Ethylenediamine)sulphosalicylatooxovanadium^(IV); [VO(C7H4O6S)(C2H8N2)]	119.3(C1), 165.8(C2), 116.5(C3), 133.3(C4), 122.1(C5), 133.2(C6), 173.0(C7)	34(C1 & C2)