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)
%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 = {2019-07-15T13:41:23.000+0200},
author = {Albrecht, Markus and Hubler, Klaus and Scheiring, Thomas and Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/26d250122dcf4d5d1e18cdf26fd625997/b_schwederski},
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 = {2019-07-15T11:42:10.000+0200},
title = {Copper(I) and copper(II) complexes of the bidentate imidazole/thioether ligand 1-methyl-2-(methylthiomethyl)-1H-benzimidazole},
volume = 287,
year = 1999
}