Jump to main content
Jump to site search

Issue 43, 2017
Previous Article Next Article

Dihydrobis(methimazolyl)borato complexes of ruthenium and osmium

Author affiliations

Abstract

The reaction of Na[H2B(mt)2] (mt = 2-mercapto, 3-methylimidazol-1-yl, methimazolyl) with [Ru(X)Cl(CO)(PPh3)n] (n = 3 X = H; n = 2 BO2C6H4, SiCl3, SiMe3) affords the complexes [Ru(X)(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}]. Evidence is presented to also support the transient formation of [Ru(X)(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}] (X = CH[double bond, length as m-dash]CHPh, Ph) via a similar strategy, although these are unstable. The osmium complex [OsH(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}] is similarly obtained from [OsHCl(CO)(PPh3)3] or [OsH(NCMe)2(CO)(PPh3)2]BF4. The reaction of [RuH(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}] with chloroform or diphenyldiselenide provides [Ru(X)(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}] (X = Cl, SePh), the latter reaction also providing traces of [Ru(SeH)(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}]. Spectroscopic and structural data for the series [Ru(X)(CO)(PPh3){κ2-H,S,S′-H2B(mt)2}] are discussed in terms of perturbations on the B–H–Ru interaction by the trans-ligand X.

Graphical abstract: Dihydrobis(methimazolyl)borato complexes of ruthenium and osmium

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Jul 2017, accepted on 27 Sep 2017 and first published on 04 Oct 2017


Article type: Paper
DOI: 10.1039/C7DT02420G
Citation: Dalton Trans., 2017,46, 14957-14972
  •   Request permissions

    Dihydrobis(methimazolyl)borato complexes of ruthenium and osmium

    M. R. St.-J. Foreman, C. Ma, A. F. Hill, N. E. Otten, M. Sharma, N. Tshabang and J. S. Ward, Dalton Trans., 2017, 46, 14957
    DOI: 10.1039/C7DT02420G

Search articles by author

Spotlight

Advertisements