Abstract
Tris(4-fluorophenyl)antimony dicarboxylates (4-FC6H4)3Sb[OC(O)R]2, where R = CH2Cl (I), C6F5 (II), C6F4H-2 (III), CF2CF3 (IV), CF2CF2CF3 (V), and (3-FC6H4)3Sb[OC(O)C6F4H-2]2 (VI) have been synthesized by the reaction of tris(fluorophenyl)antimony with chloroacetic, pentafluorobenzoic, tetrafluorobenzoic, pentafluoropropionic, and heptafluorobutyric acids in the presence of tert-butyl hydroperoxide. According to X-ray diffraction data, the Sb atoms in complexes I–VI have trigonal bipyramidal coordination. The axial OSbO angles are 177.68(9)°, 177.44(12)°, 176.59(7)°, 179.59(6)°, 179.63(9)°, and 175.72(12)°. The Sb–O and Sb–С bond lengths are 2.125(2), 2.136(2) and 2.101(3)–2.112(3) A in I, 2.118(3), 2.119(3) and 2.094(5)–2.109(5) A in II, 2.120(2), 2.137(2) and 2.114(2)–2.122(3) A in III, 2.133(2), 2.153(2) and 2.086(2)–2.098(2) A in IV, 2.146(3), 2.164(3) and 2.090(4)–2.093(4) A in V, 2.123(3), 2.140(3) and 2.109(5)–2.122(5) A in VI.
Published Version
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