Oxomolybdenum (v) complexes of benzimidazole and 2 - substituted benzimidazoles

S. R. Girish, V. B. Mahale

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Abstract

Oxomolybdenum (V) complexes of the type (LH)2-[moocl5], (LH)2 [MoOC]4.OH], (LH) [MoOCl4.H2O], [Mo2O4Cl- (l-h)l' (H2O)2].nH2O, (where L = benzimidazole, 2 — α - hydroxymethyl benzimidazole, 2 — α — hydroxyethyl benzimidazole and 2 - α - hydroxybenzyl benzimidazole, L' = EtOH or H2O and n - 0, 1 or 2); [MoOCl3(L)]H2O,(L = benzimidazole); [moocl2(L — H)h2o].H2O, (where L=2-α- - hydroxymethyl benzimidazole) and [mo2O4Cl2L2].2H2O (where L”□ 2-acetyl benzimidazole, 2 - benzoyl benzimidazole and 2 -{o - aminophenyl } benzimidazole) have been isolated and characterised. All monomeric complexes show absorptions in the visible region (~ 710 nm and ~ 440 nm) characteristic of octahedral Mo(V) complexes. The dimeric complexes do not absorb in the visible region, possibly due to the presence the Mo2O4 2+ core. All complexes show an JR absorption band in the region 950 - 1000 cm-1 characteristic of terminal Mo =O. Thermal stabilities of some of the complexes are reported.

Original languageEnglish
Pages (from-to)755-777
Number of pages23
JournalSynthesis and Reactivity in Inorganic and Metal-Organic Chemistry
Volume21
Issue number5
DOIs
Publication statusPublished - 01-05-1991

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Benzimidazoles
thermal stability
absorption spectra
benzimidazole
Absorption spectra
Thermodynamic stability

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

Cite this

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title = "Oxomolybdenum (v) complexes of benzimidazole and 2 - substituted benzimidazoles",
abstract = "Oxomolybdenum (V) complexes of the type (LH)2-[moocl5], (LH)2 [MoOC]4.OH], (LH) [MoOCl4.H2O], [Mo2O4Cl- (l-h)l' (H2O)2].nH2O, (where L = benzimidazole, 2 — α - hydroxymethyl benzimidazole, 2 — α — hydroxyethyl benzimidazole and 2 - α - hydroxybenzyl benzimidazole, L' = EtOH or H2O and n - 0, 1 or 2); [MoOCl3(L)]H2O,(L = benzimidazole); [moocl2(L — H)h2o].H2O, (where L=2-α- - hydroxymethyl benzimidazole) and [mo2O4Cl2L2].2H2O (where L”□ 2-acetyl benzimidazole, 2 - benzoyl benzimidazole and 2 -{o - aminophenyl } benzimidazole) have been isolated and characterised. All monomeric complexes show absorptions in the visible region (~ 710 nm and ~ 440 nm) characteristic of octahedral Mo(V) complexes. The dimeric complexes do not absorb in the visible region, possibly due to the presence the Mo2O4 2+ core. All complexes show an JR absorption band in the region 950 - 1000 cm-1 characteristic of terminal Mo =O. Thermal stabilities of some of the complexes are reported.",
author = "Girish, {S. R.} and Mahale, {V. B.}",
year = "1991",
month = "5",
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Oxomolybdenum (v) complexes of benzimidazole and 2 - substituted benzimidazoles. / Girish, S. R.; Mahale, V. B.

In: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, Vol. 21, No. 5, 01.05.1991, p. 755-777.

Research output: Contribution to journalArticle

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T1 - Oxomolybdenum (v) complexes of benzimidazole and 2 - substituted benzimidazoles

AU - Girish, S. R.

AU - Mahale, V. B.

PY - 1991/5/1

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N2 - Oxomolybdenum (V) complexes of the type (LH)2-[moocl5], (LH)2 [MoOC]4.OH], (LH) [MoOCl4.H2O], [Mo2O4Cl- (l-h)l' (H2O)2].nH2O, (where L = benzimidazole, 2 — α - hydroxymethyl benzimidazole, 2 — α — hydroxyethyl benzimidazole and 2 - α - hydroxybenzyl benzimidazole, L' = EtOH or H2O and n - 0, 1 or 2); [MoOCl3(L)]H2O,(L = benzimidazole); [moocl2(L — H)h2o].H2O, (where L=2-α- - hydroxymethyl benzimidazole) and [mo2O4Cl2L2].2H2O (where L”□ 2-acetyl benzimidazole, 2 - benzoyl benzimidazole and 2 -{o - aminophenyl } benzimidazole) have been isolated and characterised. All monomeric complexes show absorptions in the visible region (~ 710 nm and ~ 440 nm) characteristic of octahedral Mo(V) complexes. The dimeric complexes do not absorb in the visible region, possibly due to the presence the Mo2O4 2+ core. All complexes show an JR absorption band in the region 950 - 1000 cm-1 characteristic of terminal Mo =O. Thermal stabilities of some of the complexes are reported.

AB - Oxomolybdenum (V) complexes of the type (LH)2-[moocl5], (LH)2 [MoOC]4.OH], (LH) [MoOCl4.H2O], [Mo2O4Cl- (l-h)l' (H2O)2].nH2O, (where L = benzimidazole, 2 — α - hydroxymethyl benzimidazole, 2 — α — hydroxyethyl benzimidazole and 2 - α - hydroxybenzyl benzimidazole, L' = EtOH or H2O and n - 0, 1 or 2); [MoOCl3(L)]H2O,(L = benzimidazole); [moocl2(L — H)h2o].H2O, (where L=2-α- - hydroxymethyl benzimidazole) and [mo2O4Cl2L2].2H2O (where L”□ 2-acetyl benzimidazole, 2 - benzoyl benzimidazole and 2 -{o - aminophenyl } benzimidazole) have been isolated and characterised. All monomeric complexes show absorptions in the visible region (~ 710 nm and ~ 440 nm) characteristic of octahedral Mo(V) complexes. The dimeric complexes do not absorb in the visible region, possibly due to the presence the Mo2O4 2+ core. All complexes show an JR absorption band in the region 950 - 1000 cm-1 characteristic of terminal Mo =O. Thermal stabilities of some of the complexes are reported.

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JF - Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry

SN - 1553-3174

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