Synthesis and Characterization of Linear (CH)₈-Bridged Bimetallic Ruthenium Complexes

Abstract

Reactions of HCtCCH 2 CH(OR)CH(OR)CH 2 CtCH (R ) H, MeSO 2 ) with RuHCl(CO)(PPh 3 ) 3 produced [RuCl(CO)(PPh 3 ) 2 ] 2 (µ-CHdCHCH 2 CH(OR)CH(OR)CH 2 CHdCH), which on treatment with PMe 3 gave [RuCl(CO)(PMe 3 ) 3 ] 2 (µ-CHdCHCH 2 CH(OR)CH(OR)CH 2 CHdCH). Treatment of RuHCl(CO)(PPh 3 ) 3 with (3E,5E)-HCtCCHdCHCHdCHCtCH produced [RuCl-(CO)(PPh 3 ) 2 ] 2 (µ-CHdCHCHdCHCHdCHCHdCH). The later complex reacted with PMe 3 , 4-phenylpyridine (PhPy), and 2,6-(Ph 2 PCH 2 ) 2 C 5 H 3 N (PMP) to give [RuCl(CO)(PMe 3 ) 3 ] 2 (µ-CHdCHCHdCHCHdCHCHdCH), [RuCl(CO)(PhPy)(PPh 3 ) 2 ] 2 (µ-CHdCHCHdCHCHdCHCHd CH), and [RuCl(CO)(PMP)] 2 (µ-CHdCHCHdCHCHdCHCHdCH), respectively. The struc-turesofRuCl(CO)(PMe 3 ) 3 ] 2 (µ-CHdCHCH 2 CH(OH)CH(OH)CH 2 CHdCH)and[RuCl(CO)(PMe 3 ) 3 ] 2 -(µ-CHdCHCHdCHCHdCHCHdCH) have been confirmed by X-ray diffraction. Bond Distances (Å)

Conformational Tuning of the Intramolecular Electronic Coupling in Molecular‐Wire Biruthenium Complexes Bridged by Biphenyl Derivatives

“…These chemicals hifts are close to those found in complexes [RuCl (CO)(PMe 3 ) 3 ] 2 (CH=CH) n . [58,59] The two vinylic protons are trans to each other andt he acetylene underwent cis insertion into the RuÀHb ond, as confirmed by the X-ray structures of 4b-d.…”

Interfacial Natures and Controlling Morphology of Co Oxide Nanocrystal Structures by Adding Spectator Ni Ions

“…Uncountable synthetic procedures have been employed to produce highly efficient cobalt oxide materials. [24][25][26][27][28][29][30][31][32] It has commonly been known that the efficiency is determined by morphology including size, uniformity, and surface states. Motivated by the earlier literature reports, we have here employed spectator metal ions to tailor the morphologies of Co oxides, and to delve into their physical charateristics.…”

The chemistry of the carbon–transition metal double and triple bond: annual survey covering the year 2002

“…Reaction of cationic bridging carbyne-iron complexes with metal carbonyl anions was also reported [554]. A dicationic ruthenium-carbene complex (597) was generated from the electrochemical oxidation of polyene-bridged diruthenium complex (596) [555]. Cationic carbene complexes (e.g.…”