Journal
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
Volume 635, Issue 8, Pages 1209-1214Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/zaac.200801349
Keywords
Bisguanidine ligands; Copper complexes; Cyclic voltammetry; X-ray diffraction
Categories
Funding
- Chemischen Industrie
- Deutsche Forschungsgemeinschaft
- Bundesministerium fur Bildung und Forschung
- FCI
- University Paderborn
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The reaction of 2,2'-Bis(2N-(1,1',3,3'-tetramethyl-guanidino))diphenylene-amine (TMG(2)PA) (1) with CuI in MeCN results in the formation of [Cu-II(TMG(2)PA(amid))I] (2) indicating that Cu-I is the target of an oxidative attack of the N-H proton of the ligand which itself is converted to Molecular hydrogen. In contrast, if [Cu(MeCN)(4)][PF6] is used as the Cu-I Source, [Cu-2(I)(TMGbenz)(2)][PF6]2 (3) is obtained instead. The use of the non-coordinating counterion [PF6](-) apparently prevents Cu-I from oxidation but induces itself a cyclisation reaction within the ligand which results in the formation of a benzimidazole-guanidine ligand.
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