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From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li 2 Mo 3 TeO 12 to Polyoxometalates
Author(s) -
Oh SeungJin,
Lim SeongJi,
You TaeSoo,
Ok Kang Min
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704755
Subject(s) - metastability , materials science , yield (engineering) , crystallography , kinetic energy , precipitation , decomposition , phase (matter) , transformation (genetics) , diffraction , chemical physics , chemistry , metallurgy , organic chemistry , physics , biochemistry , quantum mechanics , meteorology , optics , gene
A metastable tellurite, Li 2 Mo 3 TeO 12 , revealing a corrugated layered structure in an extremely strained coordination environment was hydrothermally synthesized in high yield. Li 2 Mo 3 TeO 12 undergoes Li + ‐exchange‐driven facile structural transformation reactions to polyoxometalates. The kinetic data for the transformation reactions at various conditions were successfully obtained by simple lab‐source powder X‐ray diffraction. The investigation suggests that the solid‐state transformation reactions may occur through a series of steps; substitution, decomposition, recombination, and precipitation. This new finding could be utilized in discovering functional metastable materials as well as understanding their phase transition mechanisms.