Journal article

Authors list: Utz, D; Kisslinger, S; Heinemann, FW; Hampel, F; Schindler, S

Publication year: 2011

Pages: 255-267

Journal: European Journal of Inorganic Chemistry

Volume number: 2011

Issue number: 2

ISSN: 1434-1948

DOI Link: https://doi.org/10.1002/ejic.201000954

Publisher: Wiley-VCH Verlag

Abstract: 
The coordination chemistry of copper complexes with the ligand L-1 [L-1 = {7E}-N-1-benzylidene-N-2-{(E)-2-(benzyl-ideneamino)ethyl]ethane-1,2-diamine] has been investigated. For copper(I) complexes of L-1, the counterion determines the molecular structure in the solid state. The reaction of [Cu(CH3CN)(4)]PF6 with L-1 yielded the mononuclear complex [Cu(CH3CN)]PF6 (1), whereas dinuclear helical [Cu-2(L-1)(2)](ClO4)(2) (2) resulted from a similar reaction with [Cu(CH3CN)(4)]ClO4. Both compounds have been structurally characterized, and their solution behaviour investigated. Structurally characterized [Cu(L-1)(PPh3)]ClO4 (3) has been synthesized by reacting 2 with PPh3. Exposure of a solution of 1 towards dioxygen in CH3OH and CH2Cl2 yielded the dinuclear complexes [Cu-2(L-1)(2)(OCH3)(2)](PF6)(2) (4) and [Cu-2(L-1)(2)(OH)(2)](PF6)(2) (5), respectively. Both compounds have been fully characterized. During the oxidation reaction, no hydroxylation of L-1 occurred. The oxidation reaction of 1 has been studied by a chemical approach and by UV/Vis spectroscopy, indicating the formation of a peroxido-bridged species during the reaction. Furthermore, by reduction of the imine groups in L-1 the ligand L-2 [L-2 = N-1-benzyl-N-2-[2-(benzylamino)ethyl}ethane-1,2-diamine] was obtained and the dinuclear copper(II) complex [Cu-2(L-2)(2)Cl-3]PF6 center dot 2MeOH (6) has been structurally characterized.

Harvard Citation style: Utz, D., Kisslinger, S., Heinemann, F., Hampel, F. and Schindler, S. (2011) Syntheses, Characterization and Properties of Open-Chain Copper(I) Complexes, European Journal of Inorganic Chemistry, 2011(2), pp. 255-267. https://doi.org/10.1002/ejic.201000954

APA Citation style: Utz, D., Kisslinger, S., Heinemann, F., Hampel, F., & Schindler, S. (2011). Syntheses, Characterization and Properties of Open-Chain Copper(I) Complexes. European Journal of Inorganic Chemistry. 2011(2), 255-267. https://doi.org/10.1002/ejic.201000954