Table 2.

Fourier transform infrared (FT-IR) spectral data, electronic transition, and conductivity of metal complexes.

Complex	Wavenumber (cm−1)				λ (nm)	Transition	Conductivity (µS/cm)
	C=O Sym	C=O Asym	∆v	M–O
Sn (IV)	1470	1735	265	451	264	π→π*	2.4
Ni (II)	1470	1735	265	466	263, 458	π→π*, 3A2g (F)→3T1g (P)	2.2
Mg (II)	1474	1732	258	513	263	π→π*	2.6