RT Journal Article
T1 Hexanuclear Cu3O–3Cu triazole-based units as novel core motifs for high nuclearity copper(ii) frameworks
A1 Ferrer, Sacramento
A1 Hernández Gil, Javier
A1 Valverde Muñoz, Francisco Javier
A1 Lloret, Francisco
A1 Castiñeiras Campos, Alfonso
K1 Triazole
K1 Copper
K1 Hexanuclear
AB The asymmetric 3,5-disubstituted 1,2,4-triazole ligand H2V (5-amino-3-picolinamido-1,2,4-triazole) byreaction with an excess of Cu(II) perchlorate (Cu : H2V being 12 : 1) has produced a novel hexanuclear{Cu6(m3-O/H)(HV/V)3} fragment, with one triangular Cu3(m3-O/H) group connected to three peripheralsingle Cu(II) ions through a cis–cis–trans bridging mode of the ligand, which is the building block of thethree structures described here: one hexanuclear, [Cu6(m3-O)(HV)3(ClO4)7(H2O)9]$8H2O (1), onedodecanuclear, [Cu12(m3-O)2(V)6(ClO4)5(H2O)18](ClO4)3$6H2O (2), and one tetradecanuclear 1D-polymer,{[Cu14(m3-OH)2(V)6(HV)(ClO4)11(H2O)20](ClO4)2$14H2O}n (3), the last two containing hexanuclear subunitslinked by perchlorato bridges. The Cu–Cu av. intra-triangle distance is 3.352(2) A and the Cu(central) ˚ –Cu(bridged external) av. distance is 5.338(3) A. The magnetic properties of the hexanuclear ˚ “Cu3O–3Cu”cluster have been studied, resulting as best fit parameters: g ¼ 2.18(1), J(intra-triangle) ¼ 247.0(1) cm1and j(central CuII – external CuII) ¼ 5.15(2) cm1.
PB Royal Society of Chemistry
YR 2019
FD 2019
LK http://hdl.handle.net/10347/21286
UL http://hdl.handle.net/10347/21286
LA eng
NO Ferrer, S., Hernández-Gil, J., Valverde-Muñoz, F. J., Lloret, F., & Castiñeiras, A. (2019). Hexanuclear Cu3O–3Cu triazole-based units as novel core motifs for high nuclearity copper(ii) frameworks. RSC Advances, 9(50), 29357-29367
NO This work was supported by the Spanish Ministerio de Econom´ıa y Competitividad and FEDER (CTQ2016-78341-P), Unidadde Excelencia Mar´ıa de Maeztu (MDM-2015-0538) and Generalitat Valenciana through PROMETEO/2016/147. F. J. V.-M. thanks MINECO for a predoctoral (FPI) grant
DS Minerva
RD 22 abr 2026