%0 Journal Article %1 Albrecht.1999b %A Albrecht, Markus %A Hubler, Klaus %A Scheiring, Thomas %A Kaim, Wolfgang. %D 1999 %J Inorganica Chimica Acta %K complex copper prepn structure structure;crystal thiomethylbenzimidazole %N 2 %P 204--208 %R 10.1016/S0020-1693(99)00018-3 %T Copper(I) and copper(II) complexes of the bidentate imidazole/thioether ligand 1-methyl-2-(methylthiomethyl)-1H-benzimidazole %V 287 %X The mixed imidazole/thioether chelate ligand 1-methyl-2-(methylthiomethyl)-1H-benzimidazole (mmb) which was shown earlier to effect biomimicking valence tautomerism in Cu/o-quinone systems forms crystallog. characterized chelate complexes (h2-mmb)CuI(PPh3)2(BF4) (1) and (h2-mmb)2CuII(hI-ClO4)(ClO4) (2). 1 Contains Cu(I) in an approx. tetrahedral environment and 2, obtained as MeOH solvate, exhibits an asym. (trigonal bipyramidal/square pyramidal) coordinated CuII center. Whereas bidentate mmb forms shorter N-CuII (1.945 \AA) than N-CuI bonds (2.040 \AA), the S(thioether)-Cu bond lengths of $\sim$2.43 \AA are independent of the metal oxidn. state. Two relatively simple ligands mmb can effect similar spectroscopic responses as more complicated multidentate ligands. on SciFinder(R)

@article{Albrecht.1999b, abstract = {The mixed imidazole/thioether chelate ligand 1-methyl-2-(methylthiomethyl)-1H-benzimidazole (mmb) which was shown earlier to effect biomimicking valence tautomerism in Cu/o-quinone systems forms crystallog. characterized chelate complexes [(\textgreek{h}2-mmb)CuI(PPh3)2](BF4) (1) and [(\textgreek{h}2-mmb)2CuII(\textgreek{h}I-ClO4)](ClO4) (2). 1 Contains Cu(I) in an approx. tetrahedral environment and 2, obtained as MeOH solvate, exhibits an asym. (trigonal bipyramidal/square pyramidal) coordinated CuII center. Whereas bidentate mmb forms shorter N-CuII (1.945 {\AA}) than N-CuI bonds (2.040 {\AA}), the S(thioether)-Cu bond lengths of $\sim$2.43 {\AA} are independent of the metal oxidn. state. Two relatively simple ligands mmb can effect similar spectroscopic responses as more complicated multidentate ligands. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Albrecht, Markus and Hubler, Klaus and Scheiring, Thomas and Kaim, Wolfgang.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/26d250122dcf4d5d1e18cdf26fd625997/huebleriac}, doi = {10.1016/S0020-1693(99)00018-3}, interhash = {b934916d5aecb4d0be25882ec97b47bc}, intrahash = {6d250122dcf4d5d1e18cdf26fd625997}, issn = {0020-1693}, journal = {Inorganica Chimica Acta}, keywords = {complex copper prepn structure structure;crystal thiomethylbenzimidazole}, number = 2, pages = {204--208}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Copper(I) and copper(II) complexes of the bidentate imidazole/thioether ligand 1-methyl-2-(methylthiomethyl)-1H-benzimidazole}, volume = 287, year = 1999 }