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Paramagnetic Resonance Absorption in Reduced Tellurium‐Molybdenum Oxides
Author(s) -
Cariati F.,
Micera G.,
Bart J. C. J.
Publication year - 1980
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19804710121
Subject(s) - paramagnetism , molybdenum , tellurium , octahedron , electron paramagnetic resonance , crystallography , chemistry , oxygen , hydrogen , absorption spectroscopy , absorption (acoustics) , spectroscopy , inorganic chemistry , materials science , nuclear magnetic resonance , crystal structure , condensed matter physics , organic chemistry , quantum mechanics , composite material , physics
Hydrogen reduction of α‐and β‐Te 2 MoO 7 was studied by means of ESR spectroscopy at various temperatures. At 320°C reduction did not proceed beyond formation of isolated Mo(V) centres even after prolonged treatments. At 350°C various paramagnetic Mo(V) sites with tetragonally distorted octahedral oxygen coordination were observed. The ESR spectra of samples reduced at 400°C are explained by the formation of TeMo 5 O 16 .