Phosphaguanidinate Yttrium Carbene, Carbyne and Carbide Complexes: Three Distinct C1 Functionalities

The phosphaguanidinate rare-earth-metal bis(aminobenzyl) complexes [(Ph 2 P)C(NC 6 H 3 i Pr 2 -2,6) 2 ]Ln(CH 2 C 6 H 4 NMe 2 - o ) 2 (Ln = Y( 1-Y ), Lu( 1-Lu )) were synthesized by the protonolysis of (Ph 2 P)[C(NHR)(NR)] (R = 2,6-( i Pr) 2 C 6 H 3 ) with Ln(CH 2 C 6 H 4 NMe 2 - o ) 3 (Ln = Y , Lu ). Interestingly, the ring-opened...