10.1002/ejic.201701479
European Journal of Inorganic Chemistry
FULL PAPER
α = 90o, = 90°, = 120o, V = 17208(4) Å3, Z = 18, d = 1.435 g.cm-3, μ =
0.794 mm-1, F(000) = 7632, T = 173(2) K. The crystal size (0.160 × 0.140
× 0.100 mm) was studied with a Bruker APEX2 DUO Kappa-CCD
diffractometer using Mo-Kα radiation (λ = 0.71073 Å). The structure was
solved by using SHELXS-2013 [30], which revealed the non-hydrogen
atoms of the molecule. After anisotropic refinement, all the hydrogen
atoms were found by Fourier difference. The whole structure was refined
with SHELXL-2013 [31] by using the full-matrix least-squares technique
(use of F2; x, y, z, ij for C, Cl, N, O and Ru atoms, x, y, z in the riding
mode for hydrogen atoms); 436 variables and 6199 observations with I >
2.0σ(I); calcd. w = 1/[σ2(Fo2) + (0.0801P)2] in which P = (Fo2 + 2Fc2)/3.
Extra solvent accessible voids were detected in 1aCHCl3, therefore, a
SQUEEZE/PLATON technique [32] was applied to remove the
unidentified solvent contributions. Final results: R = 0.0526, Rw =
0.1455, Sw = 1.057 and Δρ < 0.961 e Å-3. CCDC 1580353 contains the
supplementary crystallographic data for 1a. These data can be obtained
from the Cambridge Crystallographic Data Centre, 12 Union Road,
Cambridge CB2 1EZ, UK; fax: (+44) 1223-336-033; or e-mail:
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Supporting Information (see footnote on the first page of this article):
Full 1H NMR, 13C NMR and FT-IR spectra for the of benzimidazolium
bromides (3a and 3b), silver(I)-NHC complexes (4a and 4b) and
ruthenium(II)-NHC complexes (1a-f) .
Acknowledgements
This work was financially supported by the Technological and
Scientific Research Council of Turkey TÜBİTAK (112T303).
Keywords: N-Heterocyclic carbene • ruthenium • amine • N-
alkylation • hydrogen borrowing strategy
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