Synthesis, characterizations and crystal structures of di-n-butyltin(IV) complexes with heteroatomic (N, O or S) acid

Synthesis and structural characterizations of diorganotin(IV) complexes with 2-pyrazinecarboxylic acid

“…The tin atom lies on a crystallographic twofold structure. Atoms Sn (1) (1)-N(4)#1, 2.553(4) Å ) is longer than those in n Bu 2 Sn(OOCC 5 H 4 N-2) 2 (H 2 O) (2.2522(6) Å ) [24,25], but much shorter than the sum of the vander Waals radii of Sn and N,3.74 Å [25,26]. The bond Sn(1)-O(4A) 2.352(6) Å also approaches the sum of the covalent radii of Sn and O (2.13 Å ) [26].…”

“…Atoms Sn (1) (1)-N(4)#1, 2.553(4) Å ) is longer than those in n Bu 2 Sn(OOCC 5 H 4 N-2) 2 (H 2 O) (2.2522(6) Å ) [24,25], but much shorter than the sum of the vander Waals radii of Sn and N,3.74 Å [25,26]. The bond Sn(1)-O(4A) 2.352(6) Å also approaches the sum of the covalent radii of Sn and O (2.13 Å ) [26]. These carboxylate groups are bidentate and use both oxygen atoms to bridge between two tin atoms, thus the complex becomes a one-dimensional chain polymer as shown in Fig.…”

Structural chemistry of mononuclear, tetranuclear and hexanuclear organotin(IV) carboxylates from the reaction of di-n-butyltin oxide or diphenyltin oxide with rhodanine-N-acetic acid

“…Recently, we have investigated organotin compounds containing carboxylate ligands which have an additional hetero-donor atom (e.g. N, O or S) residing on the R 0 group, that is, potentially tridentate ligands, in order to examine what effect the presence of the heteroatom has on the structure adopted by these compounds [6,7]. As a part of our continuing program in this area we have synthesized and structurally characterized organotin(IV) carboxylates of rhodanine-N-acetic acid, and the results of this study are reported herein.…”

Crystal structure of bis(μ3-oxo)-bis[μ2-2-(2-formylphenoxy)acetato-O,O']- bis[μ2-2-(2-formylphenoxy)acetato-O,O']-octakis(n-butyl)tetratin(IV), Sn4O2(C9H7O4)4(C4H9)8

“…The title crystal structure possesses tetranuclear centrosymmetric dimeric structure with afour-membered planar Sn 2O2 ring where d(Sn-O) varies from 2.041 to 2.291 Å,which are similar to the corresponding distances in the compounds of di-n-butyltin(IV) complexes reported [1]. The four carboxylate ligands are divided into two different types according to their coordinating mode.…”