Table 1: Optimized bond length (Å) of Ni–N.

Compound 1Compound 2
BondLengthBondLength

Ni(22)–N(24)2.0395Ni(26)–N(27)1.9155
Ni(22)–N(27)2.0595Ni(26)–N(28)1.9295
Ni(23)–N(30)2.0635Ni(33)–N(34)1.9345
Ni(23)–N(33)2.0655Ni(33)–N(35)1.9585
Ni(22)–N(10)1.9685Ni(26)–N(2)2.0175
Ni(22)–N(18)1.9635Ni(26)–N(8)2.0625
Ni(23)–N(4)1.9935Ni(33)–N(15)2.1085
Ni(23)–N(15)1.9715Ni(33)–N(18)2.0265