Synthesis and characterization of two cobalt complexes derived from the system containing phenylphosphonic acid
Wang, Mei; Ma, CB; Chen, CN; Liu, QiuT
| HERO ID | 4797024 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Synthesis and characterization of two cobalt complexes derived from the system containing phenylphosphonic acid |
| Authors | Wang, Mei; Ma, CB; Chen, CN; Liu, QiuT |
| Journal | Journal of Molecular Structure |
| Volume | 891 |
| Issue | 1-3 |
| Page Numbers | 292-297 |
| Abstract | A single-chain cobalt phosphonate complex [Co(phen)(4,4'-bpy)(PhPO(3)H)(2)](n)center dot 0.5H(2)O 1 (phen = 1,10-phenanthroline, 4,4'-bpy = 4,4'-bipyridine) and a mononuclear cobalt complex [Co(pic)(2)(H(2)O)(2)]center dot 0.5H(2)O 2 (picH = picolinic acid) have been synthesized with identical procedure from similar system containing phenylphosphonic acid and N-containing ligands. Both complexes have been characterized by single crystal X-ray diffraction, IR spectroscopy, magnetic measurement and thermal analysis. Compound 1 crystallizes in the tetragonal system with a P4(3)2(1)2 space group, and exhibits a 1-D cobalt chain connected by 4,4'-bpy bridges propagated along a axis direction, and the chains are linked by strong hydrogen bonds to form a two-dimensional grid like coordination network, whereas compound 2 crystallizes in the monoclinic system with space group P2(1)/n, and the mononuclear molecules in 2 are linked by hydrogen bonds to form infinite double-chains and the double-chains are further crosslinked to create a two-dimensional supramolecular network. The magnetic measurement reveals overall weak antiferromagnetic exchange interactions between the cobalt ions in both complexes 1 and 2. (C) 2008 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.molstruc.2008.03.055 |
| Wosid | WOS:000261537800044 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | Cobalt(II); Phosphonate complex; Single-chain; Double-chain; Magnetic properties |