Please use this identifier to cite or link to this item:
|Title:||One-step entry to olefin-tethered N,S-heterocyclic carbene complexes of ruthenium with mixed ligands|
|Citation:||Ding, N., Zhang, W., Hor, T.S.A. (2012-05-21). One-step entry to olefin-tethered N,S-heterocyclic carbene complexes of ruthenium with mixed ligands. Dalton Transactions 41 (19) : 5988-5994. ScholarBank@NUS Repository. https://doi.org/10.1039/c2dt12354a|
|Abstract:||A series of Ru(ii) mixed-ligand complexes RuBr 2(PPh 3) 2(N-AyBzTh) (Ay = prop-2-enyl; BzTh = benzothiazol-2-ylidene) (4), RuBr(OAc)(PPh 3)(N-MeAyBzTh) (5), RuBr(OAc)(PPh 3)(N-MeBnBzTh) 2 (MeBn = 3-methylbut-2-enyl) (6) and RuCl(OAc)(PPh 3)(N-MeBnBzTh) (7) have been synthesized from Ru(OAc) 2(PPh 3) 2 in one-pot condensation and ligand exchange reactions. X-ray single-crystal diffraction analysis revealed that they are neutral octahedral Ru(ii) complexes with one or two N,S-heterocyclic carbene (NSHC) ligands and a coordinated (4, 5 and 7) or dangling (6) olefin arm. The system displays a range of self-selecting structural variations. Entry of the hybrid olefin-NSHC and halide ligands ejects either one (5, 6 and 7) phosphine ligand or keeps both phosphines (4) by replacing the acetate. It is also possible to accommodate two NSHC ligands by keeping the olefin pendant (6). Complexes 5 and 7 are isostructural with all different ligands on the coordination sphere. Complexes 4-6 are active towards transfer hydrosilylation showing good β(Z) selectivity, with the Ru(ii) bearing acetate giving higher yields. © 2012 The Royal Society of Chemistry.|
|Source Title:||Dalton Transactions|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Nov 17, 2018
WEB OF SCIENCETM
checked on Nov 7, 2018
checked on Jul 6, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.