Issue 9, 2001

Abstract

The hydrothermal synthesis, characterization, single crystal X-ray structures and magnetic properties of three-dimensional coordination polymers, [M3(CTC)2(μ-H2O)2(H2O)2]·5(H2O) (1: M = Co, 2: M = Ni), employing the flexible cis,cis-cyclohexane-1,3,5-tricarboxylate (CTC or C9H9O63−) are described. X-Ray crystal structure analyses reveal that 1 and 2 are isostructural. They belong to the triclinic system, P[1 with combining macron]: a = 7.799(2), b = 9.212(1), c = 10.784(2) Å, α = 107.595(3), β = 92.877(3), γ = 110.248(3)°, V = 682.4(2) Å3 and Z = 2 for 1, and a = 7.694(1), b = 9.210(1), c = 10.764(2) Å, α = 108.598(3), β = 92.300(3), γ = 109.814(3)°, V = 670.6(2) Å3 and Z = 2 for 2. They consist of trinuclear motifs of pseudo-octahedral MO6 linked through μ-OH2 and μ-carboxylate to generate one-dimensional chains, which are further bridged by the tricarboxylate to form a non-interpenetrated three-dimensional network. The network possesses extended channels along all three crystallographic axes in which water molecules reside. Each carboxylate group displays a different coordination mode to the metals. The temperature dependence of the magnetic susceptibilities indicates dominant antiferromagnetic interaction within the trimer of the cobalt complex, tending towards a ferrimagnetic alignment at low temperatures, and mostly ferromagnetic interactions for the nickel complex.

Supplementary files

Article information

Article type
Paper
Submitted
01 Mar 2001
Accepted
08 May 2001
First published
22 Jun 2001

J. Mater. Chem., 2001,11, 2146-2151

Hydrothermal synthesis and characterization of a new 3D-network containing the versatile cis,cis-cyclohexane-1,3,5-tricarboxylate

H. Kumagai, M. Akita-Tanaka, K. Inoue and M. Kurmoo, J. Mater. Chem., 2001, 11, 2146 DOI: 10.1039/B101531L

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements