A well‐resolved cyclic water tetramer in a dinuclear CuII coordination complex based on 1, 2‐bis(pyridin‐3‐yloxy)ethane and capped by pyridine‐2, 6‐dicarboxylic acid. (15th November 2013)

• Record Type: Journal Article
• Authors: Ge, Jing‐Yuan; Wang, Peng; Ma, Jian‐Ping; Liu, Qi‐Kui; Dong, Yu‐Bin
• Is Part Of: Acta crystallographica. Volume 69:Part 11(2013:Nov.)
• Page Start: 1362
• Page End: 1366
• Publication Date: 2013-11-15
• Subjects: crystal structure -- dinuclear copper(II) complex -- cyclic water tetramer -- pyridine‐2, 6‐dicarboxylate ligand -- 1, 2‐bis(pyridin‐3‐yloxy)ethane ligand -- water clusters; Crystallography -- Periodicals; Crystals -- Periodicals; 548.05
• DOI: 10.1107/S0108270113027996
• Languages: English
• ISSNs: 0108-2701

Abstract

Abstract : μ‐1, 2‐Bis(pyridin‐3‐yloxy)ethane‐κ 2 N : N ′‐bis[aqua(pyridine‐2, 6‐dicarboxylato‐κ 3 O 2, N, O 6 )copper(II)] tetrahydrate, [Cu2 (C7 H3 NO4 )2 (C12 H12 N2 O2 )(H2 O)2 ]·4H2 O, (I), is a C‐shaped molecule based on 1, 2‐bis(pyridin‐3‐yloxy)ethane ( L ) and Cu II in the presence of pyridine‐2, 6‐dicarboxylic acid (H2 pydc). The two five‐coordinated Cu II centres are chelated by terminal pydc 2− ligands and bridged by an L spacer. The molecules are arranged in a two‐dimensional sheet via 15 O—H...O hydrogen bonds, and C—H...O interactions further bridge neighbouring sheets into a three‐dimensional supermolecular architecture. The structure includes a well‐resolved cyclic water tetramer, which acts as a subunit to form a larger aggregate. A thermogravimetric analysis of complex (I) was also carried out.