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Title

Elongated dihydrogen versus compressed dihydride in osmium complexes

AuthorsEguillor, Beatriz ; Esteruelas, Miguel A. ; Lezáun, Virginia; Oliván, Montserrat ; Oñate, Enrique
KeywordsAgostic interactions
C−H activation
Dihydrogen
Hydrides
Osmium
Issue Date2017
PublisherWiley-VCH
CitationChemistry - A European Journal 23(7): 1526-1530 (2017)
AbstractSmall modifications on the co-ligands of complexes containing two coordinated hydrogen atoms can determine the elongated dihydrogen versus compressed dihydride nature of these species and therefore their chemical behavior. 2,6-diphenylpyridine favors the formation of the osmium(IV) cation [OsH2(C6H4pyPh)(PiPr3)2]+, whereas 2-phenoxy-6-phenylpyridine, which contains an oxygen atom between the heterocycle and one of the phenyl groups, stabilizes the osmium(II) elongated dihydrogen species [Os(C6H4pyOPh)(η2-H2)(PiPr3)2]+. In contrast to the latter, the former shows a marked tendency to undergo reductive elimination of the heterocycle.
Publisher version (URL)https://doi.org/10.1002/chem.201605843
URIhttp://hdl.handle.net/10261/143343
DOI10.1002/chem.201605843
ISSN0947-6539
E-ISSN1521-3765
Appears in Collections:(ISQCH) Artículos
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