Issue 28, 2013

Single-crystal to single-crystal transformation from a 1-D chain-like structure to a 2-D coordination polymer on heating

Abstract

The temperature-driven single-crystal to single-crystal transformation of a new erbium(III) coordination polymer with the ligand benzimidazole-5,6-dicarboxylic acid (H2bidc), {[Er(bidc)(ClO4)((H2O)3]ยท3H2O}n (1) to [Er(bidc)(ClO4)]n (2), has been reported and the structures of 1 and 2 were determined by X-ray crystallography. The thermal stability of compounds 1 and 2 were studied by thermogravimetric analysis (TGA). Powder X-ray diffraction experiments showed that the phase transitions described for single crystals also occur in the macroscopic powder samples and lead to monophasic products. Interestingly, with the loss of water molecules, the near infrared (NIR) emission of the Er(III) ion in compound 2 can be obviously enhanced compared to that in 1, which provides an effective strategy for enhancing the near infrared luminescence of lanthanide complexes.

Graphical abstract: Single-crystal to single-crystal transformation from a 1-D chain-like structure to a 2-D coordination polymer on heating

Supplementary files

Article information

Article type
Communication
Submitted
11 Jan 2013
Accepted
09 May 2013
First published
13 May 2013

CrystEngComm, 2013,15, 5606-5611

Single-crystal to single-crystal transformation from a 1-D chain-like structure to a 2-D coordination polymer on heating

X. Hong, M. Wang, H. Jin, Q. Zhan, Y. Liu, H. Jia, X. Liu and Y. Cai, CrystEngComm, 2013, 15, 5606 DOI: 10.1039/C3CE00060E

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