Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.

Issue 7, 2015
Previous Article Next Article

“3 + 1 = 6 + 2” in Cu(ii) coordination chemistry of 1H-pyrazole aza cryptands

Author affiliations


A polyazamacrocycle formed from two tris(2-aminoethyl)amine units connected by 1H-pyrazole units shows unique hexanuclear Cu(II) complexes by combination of two binuclear Cu(II) cryptand complexes through pyrazolate moieties belonging to both cryptands. The formation of these dimeric entities has been proven both in solution by potentiometric studies and mass spectroscopy and in the solid state by X-ray diffraction of crystals of three different batches of formulae [Cu6(H-3L)2(H2O)2](TsO)6·22H2O (2), [Cu6(H-3L)2(NO3)2](NO3)4·2H2O (3) and [Cu6(H-3L)2Cl2]Cl4·(C4H5N3O2)2·14.35H2O (4). The hexanuclear unit in 2 and 4 can be viewed like three magnetically independent binuclear complexes with J = −366(3) cm−1, g = 2.08(1) for 2 and J = −360(3) cm−1, g = 2.07(1) for 4.

Graphical abstract: “3 + 1 = 6 + 2” in Cu(ii) coordination chemistry of 1H-pyrazole aza cryptands

Back to tab navigation

Supplementary files

Article information

27 Nov 2014
06 Jan 2015
First published
07 Jan 2015

Dalton Trans., 2015,44, 3378-3383
Article type
Author version available

“3 + 1 = 6 + 2” in Cu(II) coordination chemistry of 1H-pyrazole aza cryptands

J. Pitarch-Jarque, R. Belda, F. Lloret, J. Ferrando-Soria, P. Navarro, A. Lopera and E. García-España, Dalton Trans., 2015, 44, 3378
DOI: 10.1039/C4DT03650F

Social activity

Search articles by author