Citation: Sacramento Ferrer; Francesc Lloret; Ignacio Bertomeu; Gloria Alzuet; Joaqu\'in Borr\'as; Santiago Garc\'ia-Granda; Malva Liu-Gonz\'alez; Jaap G. Haasnoot (2002). Cyclic Trinuclear and Chain of Cyclic Trinuclear Copper(II) Complexes Containing a Pyramidal Cu3O(H) Core. Crystal Structures and Magnetic Properties of [Cu3(\m3-OH)(aaat)3(H2O)3](NO3)2.H2O [aaat = 3-Acetylamino-5-amino-1,2,4-triazolate] and {[Cu3(\m3-OH)(aat)3(\m3-SO4)].6H2O}n [aat = 3-Acetylamino-1,2,4-triazolate]: New Cases of Spin-Frustrated Systems. Inorganic Chemistry, 41, pp. 5821-5830.