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Nitrosyl Ruthenium Diolato Complexes
Author(s) -
Barth Michael,
Kästele Xaver,
Klüfers Peter
Publication year - 2005
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/ejic.200300925
Subject(s) - chemistry , ruthenium , ligand (biochemistry) , aqueous solution , cyclohexane , medicinal chemistry , diethylenetriamine , stereochemistry , crystallography , catalysis , organic chemistry , biochemistry , receptor
[ mer ‐(dien)(NO)Ru(AnErytH –2 )]BPh 4 · 2 H 2 O ( 1 ), [ mer ‐(dien)(NO)Ru( R , R ‐ChxdH –2 )]BPh 4 ( 2 ), [ mer ‐(dien)(NO)Ru(EthdH –2 )]BPh 4 ( 3 ), and [ mer ‐(dien)(NO)Ru(Me‐β‐ D ‐Rib f 2,3H –2 )]BPh 4 · 5.5 H 2 O ( 4 ) have been synthesized in the form of light pink crystals by the reaction of [ mer ‐(dien)(NO)RuCl 2 ]X with the respective diol in aqueous sodium hydroxide solution (dien = diethylenetriamine, AnEryt = anhydroerythritol, Chxd = cyclohexane‐1,2‐diol, Ethd = ethanediol, Rib = ribose; X = BPh 4 or PF 6 ). The nitrosyl ligand exhibits a strong trans influence which causes the trans ‐bonded oxygen atom of the diolato ligand to form a shorter bond with the Ru centre. Mean values are 2.038 for cis and 1.946 Å for trans O ‐binding. Back donation is strongly supported by the diolato ligand resulting in low energies for the N–O stretch which can be observed as low as 1805 cm –1 . trans ‐Oxygen atoms do not act as hydrogen‐bond acceptors in any of the cases. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)