Inorganic Chemistry, Vol.41, No.9, 2385-2388, 2002
Synthesis and molecular structure of [{(HBpz(3))Rh(PPh3)(mu-CI)(2)}(2)Ag]BF4 (Hpz = pyrazole), a heterotrinuclear Rh2Ag compound with square-planar silver(I)
Reaction of [(HBpz(3))RhCl2(PPh3)] (Hpz = pyrazole) with silver salts AgA (A = BF4, NO3, SbF6) affords the unexpected heterotrinuclear compounds [{(HBpz(3))Rh(PPh3)(mu-Cl)(2)}(2)Ag]A (A = BF4 (1), NO3 (2), SbF6 (3)). The compounds have been fully characterized by IR, H-1, P-31{H-1}, and C-13{H-1} NMR spectroscopy and FAB(+) mass spectrometry. The solid structure of compound 1 was determined by single-crystal X-ray diffraction. The cation consists of two (HBpz(3))RhCl2(PPh3) units bonded to a silver atom through two double mu-Cl bridges in an unusual distorted square-planar arrangement.