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Synthesis, characterization and crystal structures of tri- and tetraphenylantimony(V) compounds containing arylcarbonyloxy moiety

“…In the crystal structure of compound 12, in the axial position the angle C(26)-Sb(1)-O(1) is 175.44 (14)°. The distance of Sb-O in compound 12 is slightly longer than that in tri-m-tolylantimony bis(benzenesulfonate), tri-p-tolylantimony bis(2,5-dimethylbenzenesulfonate) [21], tetraphenylantimony 2-furoinate and tetraphenylantimony benzoate [28]. Furthermore, the antimony-oxygen distance is different from Sb-O(H) 1.967(3) Å and SbÁ Á ÁO(P) 2.235(2) Å [44].…”

“…This tretraphenylantimony derivative is synthesized by different method from Refs. [21,28], but the crystal structures are reported as similar monomers and the Sb atoms have the same distorted trigonalbipyramidal coordination with the O atoms of the carboxylate ligands in the axial positions while carbon atoms of the SbPh 3 unit occupy equatorial positions. In the crystal structure of compound 12, in the axial position the angle C(26)-Sb(1)-O(1) is 175.44 (14)°.…”

“…Furthermore, there are pÁ Á Áp and C-HÁ Á Áp interactions in the one-dimension chain, which make the structure is more stable. The distance of ii-iii (pÁ Á Áp) and ii-iv (pÁ Á Áp) is 3.721 Å and 4.196 Å, respectively, and the distance of H(26)-i (HÁ Á Áp) is 3.177 Å [i is the center of phenyl C(17)-C (22); ii is the center of phenyl C(23)-C (28); iii is the center of ring N(1)-C(6); iv is the center of ring C(5)-C(10)].…”