Synthesis of Oxovanadium(IV) Complexes with Tetraaza Coordinating Ligands

Table 2

Infrared spectral bands of complexes.

Complex	Bands (cm^−1)
	𝜈 (C=N)	𝜈 (V–N)	𝜈 (V=O)	𝜈3 SO4^−2	𝜈1 SO4^−2	𝜈4 SO4^−2	𝜈as (N–H)	𝜈𝑠 (N–H)
[VO(L^1)]SO4	1618	301	981	1132	956	603	3350	3180
[VO(L^2)]SO4	1624	302	982	1134	960	605	3348	3182
[VO(mac^1)]SO4	1618	302	982	1133	958	604
[VO(mac^2)]SO4	1622	304	981	1134	956	606
[VO(mac^3)]SO4	1624	304	980	1131	955	605
[VO(mac^4)]SO4	1622	302	981	1134	960	604
[VO(mac^5)]SO4	1625	304	980	1134	958	606
[VO(mac^6)]SO4	1620	302	982	1133	960	602
[VO(mac^7)]SO4	1624	303	981	1132	958	606
[VO(mac^8)]SO4	1618	302	982	1135	960	604