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Supported cyclopentadienylmetal carbonyl complexes : II. Polystyrene-supported carbonyl and nitrosyl derivatives of group VI transition metals

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Gubitosa_238686.pdf
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1977

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Gubitosa, Giuseppe

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http://nbn-resolving.de/urn:nbn:de:bsz:352-238686
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https://doi.org/10.1016/S0022-328X(00)93194-2
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Journal of Organometallic Chemistry. 1977, 140(2), pp. 187-193. ISSN 0022-328X. Available under: doi: 10.1016/S0022-328X(00)93194-2

Zusammenfassung

Tricarbonyl hydride derivatives of cyclopentadienyl-chromium, -molybdenum and -tungsten compounds covalently linked to a macroreticular polystyrene support are obtained by treatment of polystyrene-attached cyclopentadienyl anions with the respective metal hexacarbonyl and subsequent acidification. In contrast to the ease with which unsupported cyclopentadienyl-chromium and -molybdenum tricarbonyl hydrides lose H2 to form dinuclear carbonyl species, no H2 is released from their polymer-supported counterparts below about 180°C, and no dinuclear species are detectable after partial thermal decomposition at higher temperatures. The identity of the polymer-supported chromium species is confirmed by its conversion into nitrosyl derivatives.

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540 Chemie

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ISO 690GUBITOSA, Giuseppe, Hans-Herbert BRINTZINGER, 1977. Supported cyclopentadienylmetal carbonyl complexes : II. Polystyrene-supported carbonyl and nitrosyl derivatives of group VI transition metals. In: Journal of Organometallic Chemistry. 1977, 140(2), pp. 187-193. ISSN 0022-328X. Available under: doi: 10.1016/S0022-328X(00)93194-2
BibTex
@article{Gubitosa1977Suppo-23868,
  year={1977},
  doi={10.1016/S0022-328X(00)93194-2},
  title={Supported cyclopentadienylmetal carbonyl complexes : II. Polystyrene-supported carbonyl and nitrosyl derivatives of group VI transition metals},
  number={2},
  volume={140},
  issn={0022-328X},
  journal={Journal of Organometallic Chemistry},
  pages={187--193},
  author={Gubitosa, Giuseppe and Brintzinger, Hans-Herbert}
}
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    <dcterms:abstract xml:lang="eng">Tricarbonyl hydride derivatives of cyclopentadienyl-chromium, -molybdenum and -tungsten compounds covalently linked to a macroreticular polystyrene support are obtained by treatment of polystyrene-attached cyclopentadienyl anions with the respective metal hexacarbonyl and subsequent acidification. In contrast to the ease with which unsupported cyclopentadienyl-chromium and -molybdenum tricarbonyl hydrides lose H&lt;sub&gt;2&lt;/sub&gt; to form dinuclear carbonyl species, no H&lt;sub&gt;2&lt;/sub&gt; is released from their polymer-supported counterparts below about 180°C, and no dinuclear species are detectable after partial thermal decomposition at higher temperatures. The identity of the polymer-supported chromium species is confirmed by its conversion into nitrosyl derivatives.</dcterms:abstract>
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