Hindered rotation of some substituted thioureas in complexes of chromium and tungsten carbonyls

dc.creatorGranifo, J.
dc.creatorCostamagna, J.
dc.creatorGarrao, A.
dc.creatorPieber, M.
dc.date.accessioned2018-12-20T15:10:00Z
dc.date.available2018-12-20T15:10:00Z
dc.date.created2018-12-20T15:10:00Z
dc.date.issued1980
dc.identifierJournal of Inorganic and Nuclear Chemistry, Volumen 42, Issue 11, 2018, Pages 1587-1593
dc.identifier00221902
dc.identifier10.1016/0022-1902(80)80322-8
dc.identifierhttps://repositorio.uchile.cl/handle/2250/158099
dc.description.abstractWe describe a procedure for the preparation of various metal thiourea complexes of the type [M(CO)5L] in which M Cr or W and L TU (thiourea), TMTU (tetramethylthiourea), DptTU (NN′-di-p-totyl thiourea); DtBTU = (NN′-di-t-butyl thiourea). Structural characterization of the compounds was achieved by UV-visible, IR and especially NMR spectroscopy. This study shows evidence of rotamers with NH bonds cis and trans with respect to the thiocarbonyl sulphur group. Also we report the activation free energies for hindered rotation around the CN bonds close to the coalescence temperature in TU, [Cr(CO)5TU] (Cr(CO)5DptTU], DtBTU, [Cr(CO)5DtBTU] and [W(CO)5DtBTU]. © 1980.
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
dc.sourceJournal of Inorganic and Nuclear Chemistry
dc.titleHindered rotation of some substituted thioureas in complexes of chromium and tungsten carbonyls
dc.typeArtículo de revista


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