New synthesis of triphenylbismuth diaroxides

The reaction of triphenylbismuth, hydrogen peroxide, and phenol (molar ratio I : 1:2) in ether was used to synthesize triphenylbismuth diaroxides Ph3Bi(OAr)(2) [Ar = C6H3(NO2)(2)-2,4, C6H2(NO2)(3)-2,4,6, C6H3Cl2-2,6, C6H2Cl3-2,4,6, C6H3Br2-2,4, C6H2Br3-2,4,6, C6H2Br2-2,4,Me-6, C6H2Br2-2,6, No-2-4]. At an equimolar reagent ratio, bridged bismuth compounds (Ph3BiOAr)(2)O are formed. The crystal structure of bis(2,4-dinitrophenoxy)triphenylbismuth Ph3Bi[OC6H3(NO2)(2)-2,4](2) was studied by X-ray diffraction to show that the bismuth atom has a distorted trigonal bipyramidal coordination and the 2,4-dinitrophenoxyl ligands are axial. The CBiC and OBiO angles are 109.6(5)degrees, 122.3(5)degrees, 128.1(5)degrees, and 175.6(3)degrees. The Bi-O-1,O-6 and Bi-C bond lengths are 2.256(10), 2.242(9) and 2.18(1), 2.18(1), 2.19(1) angstrom, respectively.