201018-31-7Relevant academic research and scientific papers
1,8-Diphenylocta-1,3,5,7-tetraene complexes of ruthenium(II): Crystal structures of [μ-(s-cis-1,2,3,4-η:s-cis-5,6,7,8-η-PhCH=CHCH=CHCH=CH-CH=CHPh) (RuClCp*)2] and [μ-(s-trans-1,2,3,4-η:s-trans-5,6,7,8-η-PhCH=CHCH=CH-CH=CHCH=CHPh) {Ru(acac)2}2]
Mashima, Kazushi,Fukumoto, Hiroki,Tani, Kazuhide,Haga, Masa-Aki,Nakamura, Akira
, p. 410 - 414 (2008/10/08)
Reaction of 1,8-diphenyl-1,3,5,7-octatetraene with [Ru(μ-Cl)Cp*]4 (1) (Cp* = η5-pentamethylcyclopentadienyl) gave [μ-(s-cis-1,2,3,4-η:s-cis-5,6,7,8-η-PhCH=CHCH=CHCH=CH-CH=CHPh) (RuClCp*)2] (2), whose crystal structure revealed that 2 has a planar tetraene backbone coordinated by two Cp*RuCl moieties in s-cis-η4-fashion; while the reaction with Ru(acac)3/Zn system resulted in the formation of [μ-(s-trans-1,2,3,4-η:s-trans-5,6,7,8-η-PhCH=CHCH=CHCH=CHCH=CHPh) {Ru(acac)2}2] (3), where both of the two Ru(acac)2 moieties prefer s-trans coordination and thus the plane of the octatetraene backbone of 3 is deformed into an S-shape. Electrochemical studies for complexes 2 and 3 revealed that they have a coupling between the two ruthenium centers and are conjugatively interacted dπ-pπ organometallic systems.
