Syntheses and characterization of triorganotin complexes: X-ray crystallographic study of triorganotin pyridinedicarboxylates with trinuclear, 1D polymeric chain and 2D network structures

Synthesis and structural characterization of diorganotin(IV) complexes with 2,6‐pyridinedicarboxylic acid

“…In the present study, sodium methoxide or potassium iso-propoxide was reacted with triphenyltin chloride and, in a subsequent reaction, with 2,6-pyridinedicarboxylic acid, yielding two new diorganotin(IV) derivatives, 2,6-pyridinedicarboxylates, whose structures differ from the compounds reported earlier. In contrast to earlier reports, [12] one of the phenyl groups bound to tin was cleaved and, instead of a triorganotin(IV) compound, a diorganotin(IV) derivative was formed. It appears that in the synthesis of complex 1, when sodium methoxide reacted with triphenyltin(IV) chloride, an equilibrium between sodium methoxide and triphenyltin(IV) methoxide is established, in spite of the majority of sodium chloride being removed from the reaction mixture.…”

“…The Sn-N bond length, 2.287(4) Å, is very close to that of complex 1, and is similar to the bond length in the other diorganotin complex of 2,6-pyridinedicarboxylic acid. [26] The two O-Sn-N bite angles, 67.50 (12) • and 71.68 (13) • , are similar to those of compound 1 and are non-equivalent. The N1-Sn1-O1w angle, 147.18 (13) • , is the largest angle among angles in the equatorial plane, and indicates the extent of distortion from the ideal geometry.…”

“…[11] The trimethyltin(IV), triphenyltin(IV) and tribenzyltin(IV) derivatives were also prepared in the presence of triethylamine; interestingly, a single crystal structure determination of the trimethyltin(IV) derivative revealed a trinuclear structure in the form of a two-dimensional supramolecular structure, as a result of the coordination of water molecules via hydrogen bonds to the pendant oxygen atoms of the carbonyl groups and the nitrogen atoms of the pyridine ring. [12] The reaction of dimethyltin(IV) dichloride and 2,6-pyridinedicarboxylic acid in methanol under solvothermal conditions at 150…”

Syntheses and crystal structures of triorganotin (IV) derivatives with 2,2′‐bipyridine‐4,4′‐dicarboxylic acid

“…Wang reported a monomer with 2,2 -biquinoline-4,4 -dicarboxylate and triphenyltin chloride [9]. In our previous work, we have also reported several novel molecular structures on it, such as two 15-membered trinuclear macrocyclic complexes with 2-pyrazinecarboxylic acid [10], and a series of triorganotin pyridinedicarboxylates with 2,5-, 3,5-, and 2,6-pyridinedicarboxylic acid [11]. To continue our research, we selected another interesting ligand, 2,2 -bipyridine-4,4 -dicarboxylic acid, on the basis of the following considerations: (a) the 2,2 -bipyridine and carboxylate functional groups of H 2 dcbp all have coordinate abilities, either singly or in unison, so several potential multiple molecular models in organotin complexes may be possess; (b) it can act not only as a hydrogen bond acceptor but also as a hydrogen bond donor, so the preparation of hybrid networks combining the strength of coordination bonding with the flexibility of hydrogen bonding is also feasible; and (c) it possesses high symmetry that may be helpful for the crystal growth of the product formed.…”

Self‐assembly syntheses and crystal structures of dimeric di‐n‐butyltin phosphates containing eight‐membered Sn2O4P2 inorganic ring

“…A large number of organotin carboxylates have been prepared and structurally characterized [9][10][11][12][13].…”