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Bridged binuclear complex chromium

The complexes [Cr(H20)jCH2X]2+ (X = Cl, Br, or OCH3) were found to react with mercuric nitrate [Eq. (8)] (38,65). This reaction is believed to involve a binuclear displacement of Cr by attack of Hg on the carbon atom. In contrast, the reaction of [Cr(H20)JCH2I]2+ with Hg2+ involves an abstraction of I- by Hg2+ [Eq. (9)]. The reaction of [Cr(H20)5CH2I]2+ with Cr2+ as shown in Eq. (10) has also been reported (66). This reaction is believed to proceed via a carbon-bridged dinuclear chromium intermediate. [Pg.244]

Binuclear difluoro-bridged chromium complexes are rare and the only well-characterized previous example is the multidentate Cr(in) derivative [A, A"-(2-0-3, 5- Bu2-C6H2-CH2)2-1,2-NHCH2CH2NH]Cr(p,-F) 2 [25]. The terphenyl stabilized chromium fluoride 4-CF3-Ar Cr(p,-F) 2 (11) was obtained by decomposition during the reduction of 4-CF3-Ar Cr(p,-Cl) 2 with KCg in THF. Unlike the generally blue color observed for the chlorides, 11 has a pale purple color. [Pg.65]

See other pages where Bridged binuclear complex chromium is mentioned: [Pg.152]    [Pg.58]    [Pg.243]    [Pg.749]    [Pg.805]    [Pg.924]    [Pg.378]    [Pg.59]    [Pg.74]    [Pg.76]    [Pg.393]    [Pg.2588]    [Pg.2644]    [Pg.2763]    [Pg.330]    [Pg.161]    [Pg.740]    [Pg.754]    [Pg.777]    [Pg.111]    [Pg.23]    [Pg.64]    [Pg.2579]    [Pg.2616]    [Pg.196]    [Pg.339]    [Pg.196]    [Pg.117]   
See also in sourсe #XX -- [ Pg.243 , Pg.243 , Pg.244 ]



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