Dg. Fu et al., THE STRUCTURE AND MAGNETIC-PROPERTIES OF THE DI-MU-PYRAZOLATE COMPLEX[CU-2(PEAH(2))(NO3)(H2O)](NO3) [PEAH(3)=3,5-BIS(N-ETHYLAMIDO)PYRAZOLE], Transition metal chemistry, 19(6), 1994, pp. 592-594
A complex of the formula [Cu-2(PEAH(2))(2)(NO3)(H2O)]-(N O-3) [PEAH(3)
= 3,5-bis(N-ethylamido)pyrazole] was synthesized and its crystal stru
cture determined by XRD methods. It consists of a dimeric cation with
two bridging pyrazolate groups and a NO; anion. The geometries of the
coordination polyhedra around the copper(II) ions are distorted square
pyramidal. The variable temperature (20-300 K) magnetic susceptibilit
y data gave the antiferromagnetic interaction constant as J = - 19l cm
(-1), showing that the pyrazole molecule is very effective in transmit
ting the exchange interaction.