Syntheses and characterization of trans-[NiL2(NCS)2][L = 2-(aminomethyl) pyridine], trans-[NiL2′(NSC)2][L′ = 2-(2-aminoethyl)pyridine] and trans-[NiL2″(NSC)2] [L″ = 2-(2-methylaminoethyl)pyridine] complexes: X-ray single crystal structure of

[NiL2(NCS)2] (1)[L = 2-(Aminomethyl)pyridine], [NiL2′(NCS)2] (2) [(L′) = 2-(Aminoethyl)pyridine and [NiL2″(NCS)2] (3) [L″ = 2-(2-methylaminoethyl)pyridine] have been synthesized from solution. All the complexes possess trans geometry as is evident from solid state UV-Vis spectral study and X-ray single crystal structure analysis of complex 1 unambiguously proves trans geometry of the species.