Issue 2, 2010
From the journal:

CrystEngComm

Thiocyanate-induced conformational transformation of a flexible fluconazole ligand in Cd(II) coordination polymers†

Yun Ling,a   Lei Zhang,*a   Jing Li,a   Shuan-Shi Fana  and  Miao Dub  

* Corresponding authors

a School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
E-mail: lzhangce@scut.edu.cn
Fax: +86 20 8711 0234

b College of Chemistry and Life Science, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin, P. R. China

Abstract

Six Cd(II) coordination polymers with a flexible fulconazole ligand, {[Cd(HFlu)2(H2O)2](ClO4)2}n (1), {[Cd(HFlu)3(NO3)]2(NO3)2·H2O}n (2), {[Cd(HFlu)2(SCN)](ClO4)}n (3), {[Cd(HFlu)2(SCN)](NO3)}n (4), {[Cd(HFlu)2Cl](SCN)}n (5) and {[Cd(HFlu)2(SCN)2]·2H2O}n (6) [HFlu = 2-(2′,4′-difluorophenyl)-1,3-bis(1,2,4-triazol-1-yl)-propan-2-ol] have been synthesized and characterized by single-crystal X-ray diffraction. Complex 1 presents a 1-D chain-like structure with anti–gauche (A-G) conformation of HFlu. Complex 2 shows a 1-D ladder-like structure with both A-G and anti–anti (A-A) conformations of HFlu, and complexes 3, 4 and 5 show the 2-D grid structures bridged by A-G and A-A HFlu. However, in the 2-D grid network of 6, only A-A conformation of HFlu is observed. The conformational change of the HFlu ligand is induced step-by-step by the addition of the SCN− inorganic anion. The thermal stability and fluorescence of these complexes have also been studied.

Graphical abstract: Thiocyanate-induced conformational transformation of a flexible fluconazole ligand in Cd(II) coordination polymers

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Supplementary files

Article information

DOI
https://doi.org/10.1039/B914049B
Article type
Paper
Submitted
14 Jul 2009
Accepted
28 Sep 2009
First published
13 Oct 2009

CrystEngComm, 2010,12, 604-611

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Thiocyanate-induced conformational transformation of a flexible fluconazole ligand in Cd(II) coordination polymers

Y. Ling, L. Zhang, J. Li, S. Fan and M. Du, CrystEngComm, 2010, 12, 604 DOI: 10.1039/B914049B

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