Hydrogenating an organometallic carbon chain: buten-yn-diyl (CHCHCC) as a missing link

Michael J. Bartlett, Benjamin J. Frogley, Anthony F. Hill, Manab Sharma, Matthew K. Smith, Jas S. Ward

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The sequential reaction of [Ru(CCCCH)Cl(CO)2(PPh3)2] with [Ru(CO)2(PPh3)3], and N-chlorosuccinimide affords the binuclear tetracarbido complex [Ru2(μ-CCCC)Cl2(CO)4(PPh3)4]. This may be compared with the first example of a butenyndiyl bridged bimetallic complex [Ru2(μ-CHCHCC)Cl2(CO)4(PPh3)4] which is obtained from the reaction of [Ru(CCCCH)Cl(CO)2(PPh3)2] with [RuHCl(CO)(PPh3)3] followed by carbonylation. Characterisational data are discussed with reference to constituent model complexes [Ru(CCH)Cl(CO)2(PPh3)2] and [Ru(CHCH2)Cl(CO)2(PPh3)2] in addition to DFT analysis of the bonding in the complexes [Ru2(μ-L)Cl2(CO)4(PMe3)4] (L = CC-CC, CHCHCC, CHCH-CHCH). A range of other tetracarbido complexes which may be prepared from [RuCl(CCCCH)(CO)2(PPh3)2] is also described and includes [RuAu(μ-C4)Cl(CO)3(PPh3)3], [RuIr(μ-C4)Cl(CO)3(PPh3)4], [RuIr(μ-C4)H(NCMe)(CO)3(PPh3)4]BF4, [RuIr(μ-C4)Cl(η2-O2)(CO)3(PPh3)4], [Ru2Hg(μ-C4)2Cl2(CO)4(PPh3)4], [Ru2Pt(μ-C4)2Cl2(CO)4(PPh3)6] and [Ru2(μ-C4)HCl(CO)4(PPh3)4].

Original languageEnglish
Pages (from-to)16534-16554
Number of pages21
JournalDalton Transactions
Volume48
Issue number44
DOIs
Publication statusPublished - 2019
Externally publishedYes

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