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 language | English |
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Pages (from-to) | 16534-16554 |
Number of pages | 21 |
Journal | Dalton Transactions |
Volume | 48 |
Issue number | 44 |
DOIs | |
Publication status | Published - 2019 |
Externally published | Yes |