Two one‐dimensional coordination polymers generated from a new benzimidazole bridging ligand and CdX2 (X = Br and I). (14th April 2013)

• Record Type: Journal Article
• Authors: Zhang, Yue‐Feng; Ma, Jian‐Ping; Liu, Qi‐Kui; Dong, Yu‐Bin
• Is Part Of: Acta crystallographica. Volume 69:Part 5(2013:May)
• Page Start: 476
• Page End: 479
• Publication Date: 2013-04-14
• Subjects: Crystallography -- Periodicals; Crystals -- Periodicals; 548.05
• DOI: 10.1107/S0108270113006471
• Languages: English
• ISSNs: 0108-2701

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The novel asymmetric bridging ligand 1‐[(pyridin‐3‐yl)methyl]‐2‐[4‐(pyridin‐3‐yl)phenyl]‐1<italic>H</italic>‐benzimidazole (<italic>L</italic>) has been used to construct the coordination polymers <italic>catena</italic>‐poly[[[dibromidocadmium(II)]‐μ₃‐1‐[(pyridin‐3‐yl)methyl]‐2‐[4‐(pyridin‐3‐yl)phenyl]‐1<italic>H</italic>‐benzimidazole] monohydrate], {[CdBr₂(C₂₄H₁₈N₄)]·H₂O}_{<italic>n</italic>}, (I), and <italic>catena</italic>‐poly[[diiodidocadmium(II)]‐μ₃‐1‐[(pyridin‐3‐yl)methyl]‐2‐[4‐(pyridin‐3‐yl)phenyl]‐1<italic>H</italic>‐benzimidazole], [CdI₂(C₂₄H₁₈N₄)]_{<italic>n</italic>}, (II). Compounds (I) and (II) are closely related one‐dimensional polymers based on 16‐ and 20‐membered macrocycles along the chains, but they are not isomorphous. The chains are crosslinked into a two‐dimensional network <italic>via</italic> hydrogen bonds and π–π interactions in (I), and into a three‐dimensional framework through π–π interactions in (II). One well‐ordered solvent water molecule per asymmetric unit is included in (I) and forms O...Br hydrogen bonds.</p> </abstract>