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Synthetic and Structural Studies on Organotransition Metal‐Gallium Complexes

1992; Wiley; Volume: 125; Issue: 1 Linguagem: Inglês

10.1002/cber.19921250110

0009-2940

Rachel Campbell, Lucy M. Clarkson, W. Clegg, DavidC. R. Hockless, Nigel L. Pickett, Nicholas C. Norman,

Synthesis and characterization of novel inorganic/organometallic compounds

The transition metal‐gallium complexes [Ga(ML n ) 3 ] [where ML n =Fe(CO) 2 (η‐C 5 H 5 ), Mo(CO) 3 (η‐C 5 H 5 ), Co(CO) 3 (PPh 3 ), and Mn(CO) 5 ] have been synthesised by salt elimination between GaCl 3 and M I (ML n ) (M I =Na/K). The iron complex [Ga{Fe(CO) 2 (η‐C 5 H 5 )} 3 ] ( 1 ) has been characterised by X‐ray crystallography and shown to contain a planar, three‐coordinate gallium centre bound to three Fe(CO) 2 (η‐C 5 H 5 ) fragments by unsupported Ga–Fe bonds [av. 2.444(1) Å]. A partial structure determination of [Ga{Mo(CO) 3 (η‐C 5 H 5 )} 3 ] ( 5 ) is consistent with a trigonal‐planar GaMo 3 core. Brief mention is also made of two chloro complexes [GaCl(ML n ) 2 ] [ML n =Fe(CO) 2 (η‐C 5 ‐H 5 ) and Co(CO) 3 (PPh 3 )].