Structural diversity of coordination polymers with bridging 3-pyridylmethanol ligand: New type of coordination polymer with different stereochemistry of copper(II) atom
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- 作者：Jan Moncol ; Peter Segla ; Dusan Miklos ; Milan Mazur ; Milan Melnik ; Tadeusz Glowiak ; Marian Valko and Marian Koman
- 关键词：Copper(II) complexes ; 3-Pyridylmethanol ; Coordination polymer ; Crystal structure ; EPR
- 刊名：Polyhedron
- 出版年：2006
- 出版时间：8 May 2006
- 年：2006
- 卷：25
- 期：7
- 页码：1561-1566
- 全文大小：286 K
文摘
New coordination polymers based on copper(II) benzoate and pyridinecarboxylate compounds bridged by 3-pyridylmethanol, [CuX2(μ-3PM)2]n (where X = 2-methyltionicotinate (2-MeSnic) or 2-chlorobenzooate (2-Clbz) and [Cu3(2-Clnic)6(μ-3PM)4(3PM)2]n (2-Clnic = 2-chloronicotinate) have been prepared and spectroscopically studied. Both the [CuX2(3PM)2]n compounds seem to possess octahedral copper(II) stereochemistry with differing tetragonal distortions. X-ray analysis of [Cu(2-MeSnic)2(μ-3PM)2]n and [Cu(2-Clbz)2(μ-3PM)2]n was carried out and it featured tetragonal-bipyramidal geometry around the copper(II) atom. The compound [Cu(2-MeSnic)2(μ-3PM)2]n is one-dimensional coordination polymer. The compound [Cu(2-Clbz)2(μ-3PM)2]n is a two-dimensional coordination polymer. The compound [Cu3(2-Clnic)6(μ-3PM)4(3PM)2]n is 1-D “accordion chains” coordination polymer with different coordination environment around copper(II) atoms. The copper(II) atoms have tetragonal bipyramidal and tetragonal pyramidal environment.