4,5-Diphenyl-2-(trimethyl­stannylsulfanyl)-1,3-oxazole

The mononuclear title complex, [Sn(CH₃)₃(C₁₅H₁₀NOS)], features a distorted C₃S tetra­hedral geometry for Sn with some of the distortion ascribed to an intra­molecular Sn...N inter­action. Inter­molecular Sn...S inter­actions lead to the formation of a helical chain.

Dimeth­yl(1,10-phenanthroline)(pyridine-2,6-dicarboxyl­ato)tin(IV)

The mol­ecule of the title compound, [Sn(C₉H₃NO₄)(CH₃)₂(C₁₂H₈N₂)], occupies a special position on a mirror plane, which passes through the Sn, pyridine N and para-C, and two methyl C atoms. The Sn atom has a distorted penta­gonal-bipyramidal coordination, with the equatorial plane formed by two N atoms of 1,10-phenanthroline [Sn-N = 2.4754 (18) Å], and the pyridine N and two carboxyl­ate O atoms of pyridine-2,6-dicarboxyl­ate [Sn-N = 2.288 (2) Å and Sn-O = 2.2614 (15) Å]; two methyl groups occupy the axial positions [Sn-C = 2.112 (3) and 2.096 (4) Å, and C-Sn-C = 174.26 (13)°].