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ORTHOMETALATION REACTIONS IN TRIFLUOROACETATE DIRHODIUM(II) COMPOUNDS - MOLECULAR-STRUCTURE OF RH2(O2CCF3)2[C6H4)PPH2]2.(PPH3)2.2(C7H8)

被引：25
作者：
ESTEVAN, F
LAHUERTA, P
PERIS, E
UBEDA, MA
GARCIAGRANDA, S
GOMEZBELTRAN, F
PEREZCARRENO, E
GONZALEZ, G
MARTINEZ, M
机构：
[1] UNIV VALENCIA,DEPT QUIM INORGAN,DR MOLINER 50,E-46100 BURJASSOT,SPAIN
[2] UNIV OVIEDO,DEPT QUIM FIS & ANALIT,E-33006 OVIEDO,SPAIN
[3] UNIV BARCELONA,DEPT QUIM INORGAN,DIV CIENCIES EXPT & MATEMAT,E-08028 BARCELONA,SPAIN
来源：
INORGANICA CHIMICA ACTA | 1994年 / 218卷 / 1-2期
关键词：
CRYSTAL STRUCTURES; ORTHOMETALLATION; RHODIUM COMPLEXES; TRIFLUOROACETATE COMPLEXES; DINUCLEAR COMPLEXES;
D O I：
10.1016/0020-1693(94)03799-X
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Rh2(O2CCF3)3[(C6H4)PPh2].(HO2CCF3)2 reacts with PPh3 yielding the doubly metalated compound Rh2(O2CCH3)2-[(C6H4)PPh2]2.(HO2CCF3)2. The reaction proceeds Va a reactive intermediate with an equatorial phosphine, Rh2-(eta2-O2CCF3)(mu-O2CCF3)2[(C6H4)PPh2](PPh3).(HO2CCF3), which can also be generated in moderate yield under photochemical conditions. The structure of the PPh3 bis-adduct Rh2(O2CCF3)2[(C6H4)PPh2]2.(PPh3)2.2(C7H8) has been determined by X-ray diffraction. M(r)=1663.27, orthorhombic, space group Fdd2, a=41.748(9), b=21.620(5), c=17.375(5) angstrom, V=15683 angstrom3, Z=8, D(x)=1.41g cm-3 Mo Kalpha radiation (graphite crystal monochromator, lambda=0.71073 angstrom), mu(Mo Kalpha)=5.57 cm-1, F(000)=6800, T=293 K. Final conventional R factor=0.035 for 2789 'observed' reflections and 422 variables. The molecule shows crystallographic two-fold axis symmetry through the Rh-Rh bond. One toluene solvent molecule slightly disordered is present in the asymmetric unit.
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页码：189 / 193
页数：5
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