A novel heterospin polynuclear complex containing both macrocyclic and imino nitroxide radical ligands: {[CuL(H2O)](CuL)-Mn(IM-2Py)}{[CuL(MeOH)](CuL)-Mn(IM-2Py)}(ClO4)(4)center dot MeOH

摘要

A novel heterospin complex containing both macrocyclic and imino nitroxide radical ligands: {[CuL(H2O)] (CuL) Mn(IM-2Py)} {[CuL(MeOH)] (CuL) Mn(IM-2Py)} (ClO4)4.MeOH, has been synthesized and its crystal structure determined by X-ray diffraction methods. In order to interpret the exchange interaction of this asymmetric heterospin system which consists of two types of paramagnetic metal centers and a nitroxide radical, a theoretical model has been established. Using this theoretical model the magnetic susceptibility data have been fitted and lead to coupling constant values equal to -7.4 cm(-1) (Mn-Rad) and -19.2 cm(-1) (Mn-Cu), respectively. [References: 24]