A1 Refereed original research article in a scientific journal
Reactions of aminobis(phenolate)-supported dioxidotungsten(VI) and dioxidomolybdenum(VI) complexes
Authors: Lehtonen A, Sillanpaa R
Publisher: WILEY-V C H VERLAG GMBH
Publication year: 2006
Journal:: European Journal of Inorganic Chemistry
Journal name in source: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Journal acronym: EUR J INORG CHEM
Volume: 25
Issue: 3
First page : 2878
Last page: 2884
Number of pages: 9
ISSN: 1434-1948
DOI: https://doi.org/10.1002/ejic.200500249
Abstract
The dioxidotungsten(VI) and -molybdenum(VI) complexes [WO2(O2NOMe)] (1), [MoO2(O2NOMe)] (2) and [{MoO2-(O2NMe)}(2)] (3) [O2NOMe methoxyethylamino-N,N-bis(2-methylene-4,6-dimethylphenolate) dianion, O2NMe = methylamino-N,N-bis(2-methylene-4,6-dimethylphenolate) dianion] can react with chloride sources (Me3SiCl, SOCl2) to form resultant monooxido dichloro compounds [WOCl2(O2NOMe)] (4), [MoOCl2(O2NOMe)] (5) and [MoOCl2(O2NMe)] (6), respectively. The reaction of tungsten complex yields of the mixture of cis-4 and trans-4, which can be separated and characterized. The reactions of analogous molybdenum complexes with Me3SiCl yield trans isomers of 5 and 6 as individual products. Reaction of dioxidotungsten complex 1 with isopropyl isocyanate was found to produce a tungsten(VI) complex [W(O2NOMe)(N-iPr)(L)] (7) (L = N,N'-diisopropylureate) with a terminal imido group and a bidentate ureate ligand. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006).
The dioxidotungsten(VI) and -molybdenum(VI) complexes [WO2(O2NOMe)] (1), [MoO2(O2NOMe)] (2) and [{MoO2-(O2NMe)}(2)] (3) [O2NOMe methoxyethylamino-N,N-bis(2-methylene-4,6-dimethylphenolate) dianion, O2NMe = methylamino-N,N-bis(2-methylene-4,6-dimethylphenolate) dianion] can react with chloride sources (Me3SiCl, SOCl2) to form resultant monooxido dichloro compounds [WOCl2(O2NOMe)] (4), [MoOCl2(O2NOMe)] (5) and [MoOCl2(O2NMe)] (6), respectively. The reaction of tungsten complex yields of the mixture of cis-4 and trans-4, which can be separated and characterized. The reactions of analogous molybdenum complexes with Me3SiCl yield trans isomers of 5 and 6 as individual products. Reaction of dioxidotungsten complex 1 with isopropyl isocyanate was found to produce a tungsten(VI) complex [W(O2NOMe)(N-iPr)(L)] (7) (L = N,N'-diisopropylureate) with a terminal imido group and a bidentate ureate ligand. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006).
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