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1,1′-(Ethane-1,2-diyl)dipyridinium dibromidodichloridomercurate(II)

✍ Scribed by Wang, Qing-Li ;Yang, Chang-Chun ;Niu, Yun-Yin ;Liu, Xiu-Cun ;Ng, Seik Weng

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
406 KB
Volume
63
Category
Article
ISSN
1600-5368

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The Hg atom in the title compound, (C 14 H 18 N 2 )[HgBrCl 3 ], is coordinated by four halogen atoms in a tetrahedral geometry. The four halogen atoms are each disordered between Br and Cl, with the Br:Cl ratios being 0.218 (2):0.782 (2), 0.136 (2):0.864 (2), 0.090 (2):0.910 (2) and 0.556 (2):0.444

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The Hg atom in the title compound, (C 14 H 18 N 2 )[HgBr 2 I 2 ], is coordinated by four halogen atoms in a tetrahedral geometry. The four halogen atoms are disordered between I and Br, with the I:Br ratios being 0.824 (2):0.176 (2), 0.614 (2):0.386 (2), 0.325 (2):0.675 (2) and 0.237 (2):0.763 (2).

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The anion of the title complex, (C~12~H~14~N~2~)[Co~2~(C~6~H~4~O~7~)~2~(H~2~O)~2~], is a centrosymmetric edge-shared bioctahedral dimer, in which the two Co atoms are bridged by two alkoxide O atoms of the fully deprotonated citrate ligands. All of the carboxylate groups coordinate in a monodentate

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In the crystal structure of the title compound, C 12 H 10 N 2 2+ Á-2NO 3 À , the 1,2-bis(4-pyridyl)ethylene cation is located on an inversion centre and is hydrogen bonded to the nitrate anion.