SYNTHESIS, MAGNETIC PROPERTIES, AND X-RAY STRUCTURE OF CATENA-μ3-NITRATO-O,O′,O′′-(μ3-HYDROXO-1-NITRATO-1,2;1,3;2,3-TRIS(μ-PY# RAZOLATO-N,N′)-2,3-BIS(PYRAZOLE-N2))TRICOPPER(II) MONOHYDRATE. AN UNUSUAL CHAIN OF TRINUCLEAR COPPER CLUSTE