Synthesis, Characterization and Biological Activity of Organotin Derivatives of 2-Thionaphthalene, Including the Crystal Structures of (Naphthalenethiolato-S)triphenyltin(IV) and Bis(naphthalenethiolato-S)dimethyltin(IV)

Structural chemistry of organotin(IV) complexes

“…14 [40]. The mean Sn-C[2.135 Å] and Sn-S bond lengths [2.148 Å] are comparable with those in related structures such as Ph 3 SnSPh [41].…”

1H,13C, AND119Sn NMR, IR, MASS, THERMAL, AND BIOLOGICAL STUDIES OF ORGANOTIN(IV) DERIVATIVES OF 4-p-(CHLOROPHENYL)-2-PHENYL-5-THIAZOLEACETIC ACID

“…The 13 C and 119 Sn NMR data, along with the coupling constants n J( 119 Sn, 13 C) are listed in Table III. Deshielding of the protons H(11) and (15) and H (12) and (14) is observed in all complexes which should be due to the electropositive nature of the tin. A s-charge donation from the COO À donor to the tin atom decreases the electron density of the ligand and produces deshielding.…”

Triphenyl lead, tin and germanium coordination compounds derived from 9H-3-thia-1,4a,9-triaza-fluorene-2,4-dithione

“…The confirmation of the nitrogen coordination to the metal atom is based on the nitrogen-metal atom distance which is shorter than the sum of the van der Waals radii and on the orientation of the plane of the tricyclic fragment of the molecule that allows the approach of the nitrogen lone pair to the metal atom. In molecules lacking a nitrogen atom in ortho position to a thiophenol, the ring plane is not aligned with the S-M bond, as for example, in the solid state structures of thiophenoltriphenyl lead [42] and thionaphtoltriphenyl tin [43]. The coordination forms four membered rings M-S-C-N with penta-and hexacoordinated triorganyl tin or lead compounds.…”