Bis[μ-(2-carboxylatoethyl)phosphonato]bis[aqua(2,2′-bipyridine)cobalt(II)]

✍ Scribed by Ying, Shao-Ming ;Chen, Yun ;Lin, Jun-Yue ;Zhou, Guang-Pei ;Wu, Jian-Hong

• Publisher: International Union of Crystallography
• Year: 2007
• Tongue: English
• Weight: 784 KB
• Volume: 63
• Category: Article
• ISSN: 1600-5368
• DOI: 10.1107/s1600536807052592

✦ Synopsis

The title compound, [Co~2~(HO~3~PCH~2~CH~2~COO)~2~(C~10~H~8~N~2~)~2~(H~2~O)~2~], was obtained by a hydrothermal method. Two six-coordinate cobalt(II) ions are linked by two 2-carboxyethylphosphonate ligands, forming a centrosymmetric dimer. The dimers are further interlinked by O—H...O hydrogen bonds and π–π stacking [centroid–centroid distance = 4.2975 (5) Å] to form a three-dimensional supramolecular structure. The compound is isostructural with the analogous zinc(II) complex reported recently [Ying, Li, Chen, Liu & Liu (2007). Acta Cryst. E63, m555–m557].