Diphenylbis(2-pyridinethiolato)tin(IV)

Synthesis and Structural Characterisation of Diorganotin(IV) and Diphenyllead(IV) Complexes of Pyrimidine‐2‐thionate Derivatives

“…These values are similar to those found in other hexacoordinate diorganotin(IV) compounds with anionic heterocyclic thionate N,S-chelate ligands, which have values in the range 2.4476(10)-2.503(2) Å. [22,[42][43][44][45][46] [47] but are rather longer than those found in other complexes containing Sn-N bonds {e.g., 2.271(9) and 2.256(9) Å in [Cl 2 Sn(pyS) 2 ]}. [48] However, the values obtained for 1, 2, 5 and 6 are in the range found in the aforementioned [R 2 Sn(chelate…”

Novel organotin(IV) compounds derived from bis(organostannyl)methanes: Synthesis and crystal structures of bis[diphenyl(pyridin-2-onato)stannyl]methane and bis[bromophenyl(pyrimidine-2-thionato)stannyl]methane·C7H8

“…A number of organotin compounds with thiolates has been synthesized and studied for their biocidal [10] and antitumour [11] activities, while their catalytic activity in regioand stereoselective syntheses of c-diketones as well as a,b-dihydroxy ketones [12,13] have also been reported. Although many organotin compounds containing a single tin atom with pyrimidine-2-thiolate or pyridine-2-thiolate moieties and their derivatives have been structurally characterized [14][15][16][17][18][19][20][21][22][23][24][25][26], there are very few reports on the synthesis of organotin compounds containing more than one tin atom and thioles [25][26][27]. On the other hand, pyridinonebased ligands have been studied in view of their use as controlling reagents for the level of metals in body and in clinical diagnosis and chemotherapy [28,29].…”

Organometallic complexes with biological molecules. XVIII. Alkyltin(IV) cephalexinate complexes: synthesis, solid state and solution phase investigations

“…2) [50], together with data extracted for several other complexes with structures well established and equal to those proposed [52][53][54][55][56][57][58][59][60][61][62][63]. For triorganotin(IV) cephalexin complexes, the results, for the performed calculations, are reported in Table 4.…”

“…The distortion from the octahedral towards a skew trapezoidal configuration of Alk 2 Sn(IV)OHceph Á H 2 O complexes could be inferred by comparing their experimental nuclear quadrupole splitting, jD exp j, with those of homologous organotin(IV) complexes with well ascertained octahedral skew trapezoidal geometry, Table 5 [30, [54][55][56][57][58][59][60][61][62][63].…”

“…Often, this geometry is advanced, on the basis of experimental data, C-Sn-C bonds ranging between 122°and 140° [30,[54][55][56][57][58][59][60][61][62][63].…”