136953-27-0Relevant academic research and scientific papers
Metal Complexes of Dyes - Transition Metal Complexes of Mono- and Dianions of 2-(1,3-Dioxo-2-indanylidene)benzimidazolines
Schmidt, Christoph,Polborn, Kurt,Beck, Wolfgang
, p. 61 - 66 (2007/10/02)
2-(1,3-Dioxo-2-indanylidene)benzimidazolines (L) (1 - 6) react with metal salts and chloro-bridged complexes in the presence of NaH to give the mono and bis-N,O-chelate complexes (L-H(1+))2M (M = Cu, Pd, Ni) (7 - 9), (L-H(1+))M(PR3)Cl (M = Pd, Pt) (10 - 15) and (L-2H(1+))2 (16, 17).The electronic spectra of the bis(chelate) complexes show a large bathochromic shift of the absorptions in the visible region as compared to the free ligands.The structures of (L-H(1+))Pd(Cl)(PnBu3) (10) and of (L-H(1+))2 (16) have been determined by X-raycrystallography.The two heterocyclic planes in 16 are bent along the elongated central C=C bond which gives a hip-roof-like structure. Key Words: Benzimidazoline, 2-(1,3-dioxo-2-indanylidene)-, as chelate ligand / Copper complexes / Nickel complexes / Palladium complexes / Platinum complexes
