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Structural Investigation in Solution of a Series of Five‐Coordinate Bisphosphanylaryl Ruthenium(II) Complexes
Author(s) -
Dani Paulo,
van Klink Gerard P. M.,
van Koten Gerard
Publication year - 2000
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200007)2000:7<1465::aid-ejic1465>3.0.co;2-p
Subject(s) - chemistry , ruthenium , two dimensional nuclear magnetic resonance spectroscopy , crystallography , proton nmr , nuclear magnetic resonance spectroscopy , spectroscopy , spectral line , nmr spectra database , carbon 13 nmr , stereochemistry , catalysis , organic chemistry , physics , quantum mechanics , astronomy
The structure of the ruthenium(II) complexes [RuCl{C 6 H 2 (CH 2 PPh 2 ) 2 ‐2,6‐R‐4}(PPh 3 )] [R = H ( 1 ), Ph ( 2 ) or Br ( 3 )] was investigated in solution using two‐dimensional NMR techniques ( 1 H‐ 1 H‐, 13 C‐ 1 H‐ and 31 P‐ 1 H‐correlation NMR spectroscopy and 1 H NOESY). The 1 H and 13 C NMR spectra of the complexes 1−3 were similar and could be completely assigned. The results of the NOESY study indicated that these complexes have a distorted square‐pyramidal geometry in solution as was established for the parent complex R = H in the solid state by an X‐ray crystal structure determination. The strategies used for the interpretation of the 1 H, 13 C and 31 P NMR spectra of these compounds and the resulting assignments form the basis for future in situ studies involving these complexes in catalytic processes.