Bis-adducts of substituted phenylethynyl on a Ru2(DMBA)4 core: Effect of donor/acceptor modifications

Stephanie K Hurst, Guo Lin Xu, Tong Ren

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The reactions between arylethynes (either BuLi activated or Et3N assisted) and Ru2-(RDMBA)4X2, where RDMBA is either N,N′-dimethylbenzamidinate (R = H) or N,N′-dimethyl-m-methoxybenzamidinate (R = m-MeO) and X is either Cl- or NO3-, resulted in the compounds Ru2(RDMBA)4(C≡CC6H4 Y)2 (Y = H (1a,b), 4-NO2 (2a,b), 4-CN (3a,b), 3-CN (4a,b), 4-NMe2 (5a,b); R = H (a), m-MeO (b)). The single-crystal X-ray diffraction study of 1b and 2a revealed the linear alignment of the arylethynyl ligands along the Ru-Ru vector. All of the compounds display two Ru-based one-electron processes, an oxidation and a reduction, and their electrode potentials correlate linearly with the Hammett constants of substituent Y. Compounds 5a,b display an additional pair of one-electron processes attributed to the oxidation of 4-NMe2 groups, on the basis of which an extensive electron delocalization along the metallayne backbone was inferred.

Original languageEnglish (US)
Pages (from-to)4118-4123
Number of pages6
JournalOrganometallics
Volume22
Issue number20
DOIs
StatePublished - Sep 29 2003
Externally publishedYes

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9,10-Dimethyl-1,2-benzanthracene
adducts
Electrons
Oxidation
oxidation
electrons
alignment
Single crystals
Ligands
X ray diffraction
ligands
Electrodes
electrodes
single crystals
diffraction
x rays

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

Cite this

Bis-adducts of substituted phenylethynyl on a Ru2(DMBA)4 core : Effect of donor/acceptor modifications. / Hurst, Stephanie K; Xu, Guo Lin; Ren, Tong.

In: Organometallics, Vol. 22, No. 20, 29.09.2003, p. 4118-4123.

Research output: Contribution to journalArticle

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