Dimeres molybdän(II)-bis(dimethylphosphonium-dimethylid) Mo2[(CH2)2P(CH3)2]4

Abstract The orange, diamagnetic Mo II [(CH 2 ) 2 P(CH 3 ) 2 ] 4 has been prepared by direct reaction of the metallated ylid [Li(CH 2 ) 2 P(CH 3 ) 2 ] x with MoCl 3 (THF) 3 and also by reaction of Li 4 Mo 2 (CH 3 ) 8 ·4THF with [(CH 3 ) 4 P]Cl.