Pm. Briggs et al., UNUSUAL ALKYLIDENE LIGANDS - SYNTHESIS AND STRUCTURE OF THE CYCLOPENTADIENYLIDENE COMPLEX [(ETA(5)-C5H5)TA(NET2)(2)(=C5H4)], Chemical communications, (8), 1997, pp. 791-792
The unique alkylidene complex [(pi(5)-CSH5)Ta(NEt2)(2)(=C5H4)] 2 is pr
epared in low yield from the reaction of [(eta(5)-C5H5)Ta(NEt2)(2)Cl-2
] 1 with 2 equiv. of MeLi and is fully characterised including an X-ra
y structural determination.