Binuclear diaryltriazenido- and aryl(1-aryliminoethyl)amido-complexes of rhodium
Abstract
The complex [{RhCl(CO)2}2] reacts with Na[RNNNR](R = C6H4Me-p) or Li[RNC(Me)NR](R = Ph or C6H4Me-p) to give [{Rh(µ-L)(CO)2}2][L = RNNNR (1) or RNC(Me)NR (2)]. Complexes (1) and (2) undergo substitution reactions with PPh3, to yield [{Rh(RNNNR)(CO)(PPh3)}2](3; R = C6H4Me-p) and [Rh2{RNC(Me)NR}2(CO)3(PPh3)](4; R = Ph) respectively, and oxidative addition with I2 yielding [{Rhl(µ-L)(CO)2}2](5). With cyclo-octa-1,5-diene (cod) or norbornadiene (nbd), (1) affords [Rh2(RNNNR)2(CO)2(cod)](6) and [{Rh(RNNNR)(diene)}n](7; diene = cod or nbd).