(N-Maleoylmethioninato)trimethyltin(IV)

Synthesis of novel bioactive phthalimido-4-methyl pentanoateorganotin(IV) esters with spectroscopic investigation

“…This mode of coordination with exo cyclic tin atoms results in penta coordination, trigonal bi-pyramidal geometry [25]. Such behavior of tetraorganotin(IV) compounds were reported by Pervez et al [6,17,18,21] as centro-symmetric skew trapezoidal bi-pyramidal geometry for the endo-cyclic tin status while the exo-cyclic tin status are in distorted trigonal bi-pyramidal geometry. The 119m Sn Mössbauer spectra displayed quadrupole splitting values over the range of 3.41 mm s À1 , which is greater than the 2.1 mm s À1 value reported in the literature [9,16,29] for a trans octahedral geometry around tin atom of monomer diorganotin dicarboxylate complexes Similarly, Gielen et al [15] reported trans octahedral geometry of monomer type compounds (Fig.…”

“…Both asymmetric and symmetric stretching of the phthalimido (C 2 O 2 N) and of the carbonyl (CO) groups and the stretching for Sn-C and Sn-O were exhibited as reported in the literature [16][17][18][19][20][21][22][23]. The asymmetric and symmetric stretching values of CO groups of monomeric as well in dimeric type esters were raised and lowered than the ligand's values and Dm values of compounds were higher than the Dm of ligand.…”

Structural chemistry of organotin(IV) complexes

“…Among the organotin(IV) complexes, trimethyltin derivatives form a polymeric structure with trigonal bipyramidal geometry [19][20][21][22]. The representative structure of this class is given in Fig.…”

“…Because of the "being apart of chelate" rule, the angle S(1)-Sn-S(2) is not 90º but is only 68.25(2)º so that S(2) cannot occupy exactly the corresponding trans apical position of Cl(1) and the angle between the apical groups is 154. 19(3)º. The sum of the equatorial angles is 358.37(10)º showing some distortion from ideal bond angles of 360º.…”

“…Because of the "being apart of chelate" rule, the angle S(1)-Sn(1)-S(2) is not 90° but is only 65.35 (19)° so that the S(2) cannot occupy exactly the corresponding trans apical position of C (13) [49].…”