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Synthesis and Characterization of New Bis‐Cyclometalated Rhodium and Iridium Complexes Containing the Glycinamidato Ligand
Author(s) -
Graf Marion,
Karaghiosoff Konstantin,
Mayer Peter,
Beck Wolfgang
Publication year - 2013
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300156
Subject(s) - dichloromethane , iridium , chemistry , rhodium , ligand (biochemistry) , methanol , enantiomer , proton nmr , medicinal chemistry , stereochemistry , crystallography , organic chemistry , catalysis , solvent , biochemistry , receptor
Reactions of complexes [{M(μ‐Cl)(ptpy) 2 } 2 ] (M = Rh, 1 ; M = Ir, 2 ; ptpy = 2‐(p‐tolyl)pyridinato) with glycinamide hydrochloride in methanol/dichloromethane in the presence of sodium methylate as the base were investigated. Thus, the new complexes [M(glycinamidato‐ N , N ′)(ptpy) 2 ] (M = Rh, 3 ; M = Ir, 4 ) were obtained. The new chiral compounds were characterized by 2D 1 H and 13 C NMR spectroscopic studies. The molecular structure of compound 4 was confirmed by X‐ray diffraction. Complex 4 crystallized from dichloromethane/methanol/isohexane in the centrosymmetric space group C 2/ c with the two enantiomers in the unit cell. The emission spectrum of 4 exhibited the new compound as a green emitting complex.