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Bis{4,4′-[(2,2′-bi-1H-imidazole-1,1′-diyl)dimethylene]dipyridinium} β-octamolybdate

✍ Scribed by Lan, Ya-Qian ;Qin, Jun-Sheng ;Su, Zhong-Min

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

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✦ Synopsis

The title compound, (C~18~H~18~N~6~)~2~[Mo~8~O~26~], was produced by hydrothermal reaction of an acidified aqueous solution of Na~2~MoO~4~ and 1,1′-bis(pyridin-4-ylmethyl)-2,2′-bi-1__H__-imidazole (hereafter L). The structure consists of the β-octamolybdate anions having a crystallographic center of symmetry and protonated [H~2~
L]^2+^ cations. The [H~2~
L]^2+^ cations link β-octamolybdate anions, generating a two-dimensional hydrogen-bonded supramolecular sheet.

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4,4′-(Ethane-1,2-diyl)dipyridinium di-μ-
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✍ Yu, Jian 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 313 KB

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

4,4′-(Ethene-1,2-diyl)dipyridinium dinit
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✍ Yan, Guo-Bing 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 93 KB

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.

Octane-1,8-diyl­bis­[3-ethyl-1H-1,2,4-tr
Octane-1,8-diyl­bis­[3-ethyl-1H-1,2,4-triazol-5(4H)-one]
✍ Çoruh, Ufuk ;Ustabaş, Reşat ;Sancak, Kemal ;Şaşmaz, Selami ;Ağar, Erbil ;Kim, Yo 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 192 KB

The title compound, C 16 H 28 N 6 O 2 , has a centre of symmetry. There are two planar 1,2,4-triazole rings, connected by an octane group. The crystal structure is stabilized by CÐHÁ Á ÁN, CÐHÁ Á ÁO and NÐHÁ Á ÁO intermolecular hydrogen bonds.