Issue 16, 2017
From the journal:

Dalton Transactions

Discovery and isolation of the trans-isomers of two 1 : 2-type lanthanide-containing monolacunary Dawson-type tungstophosphates: [LnIII(α2-P2W17O61)2]17− (Ln = La, Ce)†

Rong Wan,a   Pengtao Ma,a   Mengdan Han,a   Dongdi Zhang,a   Chao Zhang,a   Jingyang Niu ORCID logo *a  and  Jingping Wang ORCID logo *a  

* Corresponding authors

a Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
E-mail: jyniu@henu.edu.cn, jpwang@henu.edu.cn
Fax: (+86)-371-23886876

Abstract

Two novel trans-isomers of 1 : 2-type lanthanide-containing monolacunary Dawson-type tungstophosphates [Ln(α2-P2W17O61)2]17− (Ln = LaIII (1), CeIII (2)) were successfully isolated and characterized by elemental analysis, IR, TG, and 31P NMR studies. Both polyanions 1 and 2 consist of one Ln3+ ion sanwiched between two monolacunary Dawson-type tungstophosphates fragments [α2-P2W17O61]10− oriented at 180° with respect to each other. The solid-state and solution 31P NMR spectroscopy revealed that the trans-[Ce(α2-P2W17O61)2]17− species probably quickly isomerizes to the cis-isomer species in solution.

Graphical abstract: Discovery and isolation of the trans-isomers of two 1 : 2-type lanthanide-containing monolacunary Dawson-type tungstophosphates: [LnIII(α2-P2W17O61)2]17− (Ln = La, Ce)

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Article information

DOI
https://doi.org/10.1039/C7DT00250E
Article type
Paper
Submitted
20 Jan 2017
Accepted
22 Mar 2017
First published
23 Mar 2017

Dalton Trans., 2017,46, 5398-5405

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Discovery and isolation of the trans-isomers of two 1 : 2-type lanthanide-containing monolacunary Dawson-type tungstophosphates: [LnIII(α2-P2W17O61)2]17− (Ln = La, Ce)

R. Wan, P. Ma, M. Han, D. Zhang, C. Zhang, J. Niu and J. Wang, Dalton Trans., 2017, 46, 5398 DOI: 10.1039/C7DT00250E

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