Synthesis of rhodium(III) complexes with tris/tetrakis-benzimidazoles and benzothiazoles--quick identification of cyclometallation by nuclear magnetic resonance spectroscopy
Reactions of rhodium(III) halides with multidentate N,S-heterocycles, (LH3) 1,3,5-tris(benzimidazolyl)benzene (L1H3; 1), 1,3,5-tris(N-methylbenzimidazolyl) benzene (L2H3; 2) and 1,3,5-tris(benzothiazolyl)benzene (L3H3; 3), in the molar ratio 1:1 in methanol-chloroform produced mononuclear cyclometal...
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