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Temperature-Dependent Organic Functionalization of {Ni6PW9} Species: From Isolated Clusters to 1D Chain

  • Bin Cai
  • , Jun Wei Zhao*
  • , Bai Feng Yang
  • , Huan He
  • , Guo Yu Yang
  • *Corresponding author for this work
  • Beijing Institute of Technology
  • Henan University
  • CAS - Fujian Institute of Research on the Structure of Matter

Research output: Contribution to journalArticlepeer-review

Abstract

Four new hexa-nickel(II)-substituted Keggin-type tungstophosphates [Ni63-OH)3(oeen)3(H2O)3(B-α-PW9O34)]·6H2O (1, oeen = N-(2-hydroxyethyl)enediamine), [Ni63-OH)3(oeen)3(H2O)4(B-α-PW9O34)]2·13H2O (2), [Ni63-OH)3(oeen)2(tran)(H2O)3(B-α-PW9O34)]·3H2O (3, tran = 1,4,7-triazonane) and [Ni63-OH)3(oeen)2(tran)(H2O)2(B-α-PW9O34)]·6H2O (4) have hydrothermally made by controlling their reaction temperatures. 1-4 have been characterized by elemental analyses, IR spectra, powder X-ray diffraction, thermogravimetric analyses and single-crystal X-ray diffraction, respectively. Structural analyses reveal that they consist of {Ni63-OH)3(H2O)n}9+ cores and B-α-PW9O34 (PW9) units, and further are stabilized by organic neutral oeen/tran molecules. 1-3 are isolated clusters while 4 is the 1D chain structure. It should be noted that the tran molecules in 3 and 4 are derived from the oeen molecules in the starting materials.

Original languageEnglish
Pages (from-to)1069-1084
Number of pages16
JournalJournal of Cluster Science
Volume25
Issue number4
DOIs
Publication statusPublished - Jul 2014

Keywords

  • Hydrothermal reaction
  • Lacunary precursor
  • Organic functionalization
  • Polyoxometalate
  • Temperature-dependent synthesis

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