A Fe（Ⅲ） compex with OPPh3,[Fe（OPPh3）4Cl2][FeCl4],has been synthesized and characterized by elemental analysis and IRspectrum.The crystal structure of the title complex has been determined by simgle crystal X-ray diffraction techmiques.The crystal belongs to monoclinic,space group P21/c.The cell parameters are :a=13.9323（13）,b=27.5290（2）,c=18.2095（17）,β= 104.460（2）o,V=6762.9（11）3,Z=4,DC=1.412 g/cm3,μ=0.809 mm-1,F（000）=2952,R1=0.0796 and ωR2=0.1752for 10419 observed reflections（I>2σ（I）） out of 12343 unique data.In the cations[Fe（OPPh3）4Cl2]+,the Fe（Ⅲ） center adopts a slight distoned octahedral geometry comprised oftwo OPPh3 oxygen atoms and two Cl-ions at the equatorial positions,and two OPPh3 oxygenatoms at the axial positions.In the anions[FeCl4]-,The Fe（Ⅲ） ion has a sIightly distortedtetrahedI.al coordination geometry and is bonded to four Cl-ions.
