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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 53,
  • Issue 9,
  • pp. 1083-1086
  • (1999)

Raman Spectroscopic Studies of the Thermal Decomposition of Molybdenum Oxide/2,2'-Bipyridine Compounds

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Abstract

The thermal decompositions of [MoO<sub>3</sub>(2,2'-bipy)], [Mo<sub>2</sub>O<sub>6</sub>(2,2'-bipy)], and [Mo<sub>3</sub>O<sub>9</sub>(2,2'-bipy)<sub>2</sub>] have been studied by Raman spectroscopy. Upon heating, [MoO<sub>3</sub>(2,2'-bipy)] loses 2,2'-bipyridine and converts to MoO<sub>3</sub> through a stable intermediate, [Mo<sub>2</sub>O<sub>6</sub>(2,2'-bipy)], whereas [Mo<sub>3</sub>O<sub>9</sub>(2,2'-bipy)<sub>2</sub>] loses 2,2'-bipyridine and transforms to MoO<sub>3</sub>directly. Vibrational assignments for [MoO<sub>3</sub>(2,2'-bipy)], [Mo<sub>2</sub>O<sub>6</sub>(2,2'-bipy)], and [Mo<sub>3</sub>O<sub>9</sub>(2,2'-bipy)<sub>2</sub>] are proposed.

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