cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate

The title compound, [Co4(C4H4O5)4(C7H6N2)8]·20H2O, consists of tetranuclear CoII complexes and disordered uncoordinated water molecules. The tetrameric complex molecule has overline{4} symmetry. While two benzimidazole molecules and a tridentate malate dianion coordinate a CoII ion, the car...

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Main Authors: Duan-Jun Xu, Jian-Rong Su, Jing-Jing Nie, Jun-Hua Li
Format: Article
Language:English
Published: International Union of Crystallography 2008-04-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536808006715
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author Duan-Jun Xu
Jian-Rong Su
Jing-Jing Nie
Jun-Hua Li
author_facet Duan-Jun Xu
Jian-Rong Su
Jing-Jing Nie
Jun-Hua Li
author_sort Duan-Jun Xu
collection DOAJ
description The title compound, [Co4(C4H4O5)4(C7H6N2)8]·20H2O, consists of tetranuclear CoII complexes and disordered uncoordinated water molecules. The tetrameric complex molecule has overline{4} symmetry. While two benzimidazole molecules and a tridentate malate dianion coordinate a CoII ion, the carboxylate O atom from an adjacent malate dianion bridges the CoII ions to complete a distorted octahedral coordination geometry. The tridentate malate dianion chelates the CoII ion, and the chelate six- and five-membered rings show half-chair and envelope configurations, respectively. A face-to-face separation of 3.494 (9) Å between parallel benzimidazole ligands indicates the existence of π–π stacking between adjacent complexes. The crystal structure also involves N—H...O and O—H...O hydrogen bonds.
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spelling doaj.art-976a79a8c3364df0a522bf62ccfa8b662022-12-21T19:42:05ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682008-04-01644m538m53910.1107/S1600536808006715cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrateDuan-Jun XuJian-Rong SuJing-Jing NieJun-Hua LiThe title compound, [Co4(C4H4O5)4(C7H6N2)8]·20H2O, consists of tetranuclear CoII complexes and disordered uncoordinated water molecules. The tetrameric complex molecule has overline{4} symmetry. While two benzimidazole molecules and a tridentate malate dianion coordinate a CoII ion, the carboxylate O atom from an adjacent malate dianion bridges the CoII ions to complete a distorted octahedral coordination geometry. The tridentate malate dianion chelates the CoII ion, and the chelate six- and five-membered rings show half-chair and envelope configurations, respectively. A face-to-face separation of 3.494 (9) Å between parallel benzimidazole ligands indicates the existence of π–π stacking between adjacent complexes. The crystal structure also involves N—H...O and O—H...O hydrogen bonds.http://scripts.iucr.org/cgi-bin/paper?S1600536808006715
spellingShingle Duan-Jun Xu
Jian-Rong Su
Jing-Jing Nie
Jun-Hua Li
cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate
Acta Crystallographica Section E
title cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate
title_full cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate
title_fullStr cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate
title_full_unstemmed cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate
title_short cyclo-Tetra-μ-malato-κ16O,O′,O′′:O′′′-tetrakis[bis(1H-benzimidazole-κN3)cobalt(II)] eicosahydrate
title_sort cyclo tetra 956 malato 954 16o o 8242 o 8242 8242 o 8242 8242 8242 tetrakis bis 1h benzimidazole 954 n3 cobalt ii eicosahydrate
url http://scripts.iucr.org/cgi-bin/paper?S1600536808006715
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