OXIDATION REACTION OF [(CU(HPZ)2CL)2](HPZ = PYRAZOLE) - SYNTHESIS OF THE TRINUCLEAR COPPER(II) HYDROXO COMPLEXES [CU3(OH)(PZ)3(HPZ)2CL2].SOLV (SOLV = H2O OR TETRAHYDROFURAN) - FORMATION, MAGNETIC-PROPERTIES, AND X-RAY CRYSTAL-STRUCTURE OF [CU3(OH)(PZ)3(PY)2CL2].PY (PY = PYRIDINE)