A New Cadmium-Based Pb2Cd3(PO4)(2)(P2O7) with Two Types of Isolated P-O Groups

doi:10.1002/ejic.201900002

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Title:	A New Cadmium-Based Pb2Cd3(PO4)(2)(P2O7) with Two Types of Isolated P-O Groups
Authors:	Wenqiang Chen;Qun Jing;Qiaoqiao Zhang;Ming-Hsien Lee;Xuefang Lu;Ping Wei;Zhaohui Chen
Keywords:	Lead cadmium phosphate;Structure elucidation;Mixed P–O groups;Optical properties
Date:	2019-01-24
Issue Date:	2019-09-21 12:10:14 (UTC+8)
Publisher:	Wiley
Abstract:	Introduction transition metal with d10 electrons and lone pair cations with large radius into phosphate systems are helpful to get new crystal structure configuration. Guided by the above method, the first lead cadmium phosphate, Pb2Cd3(PO4)2(P2O7), was synthesized. Pb2Cd3(PO4)2(P2O7) features a three‐dimensional (3D) structure, in which Pb(1)2O8 dimer and Pb(2)O5 polyhedra are filled between the two‐dimensional (2D) layers, which are composed of unique [Cd6P8O30] groups. In the PbIIMIIPO (MII = without or divalent metal ions) systems, the title compound is the first phosphate containing two different P–O groups simultaneously. The ratios of cation/phosphorus (C/P) and polymerization modes of P–O anions have a close relationship by many structural comparisons. Thermal analysis shows that Pb2Cd3(PO4)2(P2O7) melts congruently and is thermally stable. In addition, the UV/Vis‐IR diffuse reflectance spectrum and infrared (IR) spectrum have been reported. The relationship between electronic structure and optical properties was clarified by first‐principles studies.
Relation:	European journal of inorganic chemistry 2019(9), p.1273-1278
DOI:	10.1002/ejic.201900002
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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