Syntheses, crystal structures, and quadratic nonlinear optical properties in four “push–pull” diorganotin derivatives

Synthesis, characterization, and in vitro antimicrobial activities of organotin(IV) complexes of Schiff bases with ONO‐type donor atoms

“…The distortion is mainly due to the rigidity of chelate rings and the large covalent radius of tin(IV). These geometric results are in agreement with the results of similar tin(IV) complexes [3,15,28,29,45].…”

“…Although the true mechanism of biological action is not understood completely, there appears to be enough evidence that the activities of organotin(IV) compounds are dependent on both the covalently bonded organic groups and the ligands. The organotin(IV) complexes have also found applications in the fields of catalysis [25,26], fluorescence probing of DNA traces [27], and nonlinear optics [9,28].…”

Theoretical studies of organotin(IV) complexes derived from ONO-donor type schiff base ligands

“…Our theoretical results indicate wB97XD and MN12SX are capable of providing slightly better t values for these complexes, but it should be noted that some abnormal deviations which were observed in C-Sn-C angles and t values are not linked with prediction quality. The large experimental C-Sn-C bond angles are observed due to formation of Sn-O intermolecular interactions, giving rise to a dimeric arrangement and distorted octahedral like geometries for some complexes [32,92,93].…”

Second-order nonlinear optics in coordination chemistry: An open door towards multi-functional materials and molecular switches

“…The investigation of the NLO properties of the molecules 11-15 (Chart 2) reported previously was part of an important collaboration initiated 15 years ago with a group of chemists of Mexico, wishing to renew their scientific collaborations outside the American sphere, in the perspective of finding applications of organo-boron [32][33][34] and tin [35][36][37] derivatives in optics. Altogether, there were only few boron and tin based NLO molecules reported in the literature.…”

“…However, and due to the bent structure of the skeleton, the NLO response of 16 is significantly lower than that of the related stilbazole parents with ˇ values in the 25-30 × 10 −30 esu range for 16a, and 45-50 × 10 −30 esu range, whatever the nature of R 1 -R 5 [32]. This approach was later applied in a series of related tin-based chromophores [35]. By contrast to the boron analogous species, the tin-based materials offer a better planarity, which favors the intramolecular push-pull charge transfer, and finally leads to a ˇ enhancement of about 50%.…”