摘要:
The reaction of carboxylic acids RCOOH (R = Bu-t, Ph, Fc) with [Ru-3(CO)(12)] in refluxing acetonitrile afforded dark purple/red solids. These reacted with phosphines in a 2: 1 (Ru:P) ratio to form phosphine-substitued derivatives of the electron-deficient tetraruthenium chains, viz., [Ru-4(CO)8(mu-OOCR)(4)(PR'(3))(2)] (where R' = Ph or OMe). (C) 2015 Elsevier B.V. All rights reserved.