Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Flexible ligands and structural diversity: Isomerism in Cd(NO3)(2) coordination polymers

Cordes, D.B. and Bailey, A.S. and Caradoc-Davies, P.L. and Gregory, D.H. and Hanton, L.R. and Lee, K. and Spicer, M.D. (2005) Flexible ligands and structural diversity: Isomerism in Cd(NO3)(2) coordination polymers. Inorganic Chemistry, 44 (7). pp. 2544-2552. ISSN 0020-1669

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The ligands 1,4-bis(2-pyridylmethylsulfanylmethyl)benzene (L1) and 2,5-bis(2-pyridylmethylsulfanylmethyl)pyrazine (L2) were treated with Cd(NO3)(2)center dot 4H(2)O in metal-to-ligand ratios of 1:1 and 2:1, respectively; L2 was also treated with CdCl(2)center dot 2.5H(2)O in a 2:1 ratio. All products were found to be coordination polymers. The crystal structures of {[Cd(L1)(NO3)(2)]center dot CH2Cl2}(infinity) (1a), {[Cd(L1)(NO3)(2)]center dot 4/3CH(3)CN}(infinity) (1b), {[Cd-2(L2)(NO3)(4)]center dot 2CH(3)CN}(infinity) (2 center dot 2CH(3)CN), and {[Cd-2(L2)Cl-4]center dot 2CH(2)Cl(2)}(infinity) (3 center dot 2CH(2)Cl(2)) were determined. Compounds la and 1b were found to be conformational supramolecular isomers. The structure of 1b displayed topological isomerism with two isomeric polymer chains, 1b(1) and 1b(2), in the one crystal forming a single supramolecular array. The structure of 2 center dot 2CH(3)CN showed Cd2(L2) units linked together by nitrates bridging between the Cd(II) centers in a mode previously not seen in Cd(II) compounds. The overall structure of 3 center dot 2CH(2)Cl(2) was found to be similar to that of 2-2CH(3)CN despite the presence of different anions and solvent molecules. Powder X-ray diffraction was used to investigate the nature of bulk preparations of compounds 1-3.

Item type: Article
ID code: 587
Keywords: CRYSTAL-STRUCTURES, SUPRAMOLECULAR ISOMERISM, METAL-COMPLEXES, SOLID-STATE, SILVER(I) COMPLEXES, DITOPIC LIGAND, NETWORKS, 1, 3-BIS(4-PYRIDYL)PROPANE, CADMIUM(II), SALTS, Chemistry, Physical and Theoretical Chemistry, Inorganic Chemistry
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Related URLs:
Depositing user: Mr Derek Boyle
Date Deposited: 20 Mar 2006
Last modified: 04 Sep 2014 13:21
URI: http://strathprints.strath.ac.uk/id/eprint/587

Actions (login required)

View Item