Disproportionation and reduction of hydrazine at a molybdenum–thiolate centre: crystal structures of [MoH(SC6H2Pri3-2,4,6)3(NH3)(PMePh2)] and [MoH(SC6H2Pri3-2,4,6)3(NH2NHPh)(PMePh2)]

Autor:	Michael J. Maguire, Katayoun Marjani, David L. Hughes, Peter B. Hitchcock, Raymond L. Richards
Rok vydání:	1997
Předmět:	Hydrazine Inorganic chemistry chemistry.chemical_element Disproportionation General Chemistry Trigonal crystal system Crystal structure Medicinal chemistry Adduct chemistry.chemical_compound chemistry Molybdenum Anhydrous Tetrahydrofuran
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :4747-4752
ISSN:	1364-5447 0300-9246
DOI:	10.1039/a705886a
Popis:	In the presence of [MoH(SC6H2Pri3-2,4,6)3(PMePh2)] in tetrahydrofuran (thf), anhydrous N2H4 disproportionates to N2 and NH3 or is reduced to NH3 by Zn–HOC6H3Pri2-2,6 (69–81% conversion over 16 h). Reaction of [MoH(SC6H2Pri3-2,4,6)3(PMePh2)] with anhydrous N2H4 in thf–MeOH at low temperature gave the complex [MoH(SC6H2Pri3-2,4,6)3(NH3)(PMePh2)] which was shown by a crystal-structure determination to have a trigonal girdle of thiolate ligands with essentially apical NH3 and PMePh2 ligands [d(Mo–N), 2.298(15); d(Mo–S) (mean), 2.339(5) A]. A similar reaction using NH2NHPh instead of N2H4 gave [MoH(SC6H2Pri3-2,4,6)3(NH2NHPh)(PMePh2)], which has an analogous crystal structure to [MoH(SC6H2Pri3-2,4,6)3(NH3)(PMePh2)] [d(Mo–N), 2.278(5); d(Mo–S) (mean), 2.332(2); d(N–N) 1.451(7) A]. Spectroscopic data for these compounds are discussed in terms of their structures. The unstable adduct [MoH(SC6H2Pri3-2,4,6)3(NH2NMe2)(PMePh2)] has been characterised spectroscopically in solution.
Databáze:	OpenAIRE
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