Synthesis, structure and enhanced photoluminescence properties of two robust, water stable calcium and magnesium coordination networks

Feng Xu, Hao Wang, Simon J. Teat, Wei Liu, Qibin Xia, Zhong Li, Jing Li

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Two new 3D coordination networks Ca(cca)·H2O (1) and Mg(cca)·2H2O (2) (H2cca = 4-carboxycinnamic acid) are synthesized by solvothermal reactions and characterized by single crystal and powder X-ray diffraction, thermogravimetric analysis, optical diffuse reflection, photoluminescence spectroscopy, and internal quantum yield measurements. Crystal structure analysis reveals that compound 1 is built from edge-sharing chains of seven-coordinated calcium polyhedra, which are connected by the cca ligand to form a 2D layered structure. Compound 2 contains isolated magnesium polyhedra layers. These layers are linked by cca ligands to complete the 3D connectivity. Both compounds 1 and 2 have high thermal stability and remain intact in aqueous solutions of a broad range of pH values ranging from 3 to 11. Both compounds also show significantly enhanced luminescence with respect to the free ligand, giving rise to an increase in quantum yield by as much as 4-fold.

Original languageEnglish
Pages (from-to)20459-20463
Number of pages5
JournalDalton Transactions
Volume44
Issue number47
DOIs
Publication statusPublished - 2015

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Magnesium
Photoluminescence
Quantum yield
Ligands
Calcium
Water
Photoluminescence spectroscopy
X ray powder diffraction
Thermogravimetric analysis
Luminescence
Thermodynamic stability
Crystal structure
Single crystals
Acids

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Synthesis, structure and enhanced photoluminescence properties of two robust, water stable calcium and magnesium coordination networks. / Xu, Feng; Wang, Hao; Teat, Simon J.; Liu, Wei; Xia, Qibin; Li, Zhong; Li, Jing.

In: Dalton Transactions, Vol. 44, No. 47, 2015, p. 20459-20463.

Research output: Contribution to journalArticle

Xu, Feng ; Wang, Hao ; Teat, Simon J. ; Liu, Wei ; Xia, Qibin ; Li, Zhong ; Li, Jing. / Synthesis, structure and enhanced photoluminescence properties of two robust, water stable calcium and magnesium coordination networks. In: Dalton Transactions. 2015 ; Vol. 44, No. 47. pp. 20459-20463.
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