X. Jing, S. Img
2003
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Journal
Chinese Journal of Inorganic Chemistry
Abstract
Two complexes [1 (4′ bromo 2′ fluorobenzyl)pyridinium]2(1) and [1 (4′ bromo 2′ fluorobenzyl)pyrazinium]2(2) (mnt2- denotes maleonitriledithiolate dianion) have been prepared by reactions of Na2 with the corresponding 1 (4′ bromo 2′ fluorobenzyl)pyridinium bromide and 1 (4′ bromo 2′ fluoro benzyl)pyrazinium bromide salt. The crystallographic data for the complex 1: Triclinic , a=0. 7086(2)nm, b=1.0968(3)nm,c=1.1775(3)nm, α =69.914(5)° , β =89.495(5)° , γ =74.765(5)° , V=0.8259(4)nm3, Z=1. Complex 2: Monoclinic P21/n, a=0.71554(17)nm, b=1.4262(3)nm, c=1.6725(4)nm, β =100.396(4)° , V=1.6788(7)nm3, Z=4. In these two complexes, the Ni atom of 2- anion lies on an inversion center and complex anion exhibit a quasi planar structure. The nature and size of cation seems to play an important role in the type of intermolecular interactions as well as the crystal packing in this series of complexes. CCDC: 1, 210340; 2, 210339.