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Issue 96, 2015
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Two novel cadmium(ii) carboxyphosphonates with 3D framework structure: synthesis, crystal structures, luminescence and molecular recognition properties

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Abstract

Two novel cadmium(II) carboxyphosphonates with 3D framework structure, namely, [Cd3(L)2(H2O)2] (1) and [Cd3Cl2(HL)2(H2O)2] (2) (H3L = H2O3PCH2–NC5H9–COOH) have been synthesized under hydrothermal conditions and structurally characterized. For compound 1, the interconnection of Cd(1)O5N, Cd(2)O6, and CPO3 polyhedra via edge- and corner-sharing forms a 1D chain. The adjacent chains connect with each other by sharing the carboxyphosphonate ligands, thereby generating a 2D layered structure. Neighboring layers are composed in a 3D pillared-layered structure by carboxyphosphonate ligands. Compound 2 exhibits a 3D framework structure. The Cd(1)O4Cl, Cd(2)O4Cl2, and CPO3 polyhedra are interconnected into a 2D layered structure in the bc-plane via corner-sharing, which is further linked to adjacent layers through carboxyphosphonate ligands to form a 3D framework structure. The luminescence properties of compounds 1 and 2 have been investigated. An interesting feature of compound 2 is that it is selective and reversible for sensing of acetone.

Graphical abstract: Two novel cadmium(ii) carboxyphosphonates with 3D framework structure: synthesis, crystal structures, luminescence and molecular recognition properties

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Supplementary files

Article information


Submitted
05 Aug 2015
Accepted
07 Sep 2015
First published
07 Sep 2015

RSC Adv., 2015,5, 79041-79049
Article type
Paper
Author version available

Two novel cadmium(II) carboxyphosphonates with 3D framework structure: synthesis, crystal structures, luminescence and molecular recognition properties

C. Ma, C. Jiao, Z. Sun, Y. Zhu, X. Zhang, M. Wang, D. Yang, Z. Zhao, H. Li and B. Xing, RSC Adv., 2015, 5, 79041
DOI: 10.1039/C5RA15663G

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