Organotin(IV) carboxylates based on amide carboxylic acids: Syntheses, crystal structures and characterizations

Poly(dimethyltin glutarate) as a Prospective Material for High Dielectric Applications

“…motifs shown by S3 and S4 were observed in organotin carboxylates, the related crystals of which are also based on the COO Sn OOC unit. [ 20 ] The Sn O and Sn C bond lengths of S3 and S4, as shown in Table 1 , agree well with the corresponding bond lengths of Complex 5 and Complex 4, two experimentally determined structures of the organotin carboxylates (see the Supporting Information for positional details of the structures). [ 20 ] The formation of the Sn O bond was confi rmed by the shift of the carbonyl group of glutaric acid to a lower energy as seen in the IR ( Figure 2 ).…”

“…[ 20 ] The Sn O and Sn C bond lengths of S3 and S4, as shown in Table 1 , agree well with the corresponding bond lengths of Complex 5 and Complex 4, two experimentally determined structures of the organotin carboxylates (see the Supporting Information for positional details of the structures). [ 20 ] The formation of the Sn O bond was confi rmed by the shift of the carbonyl group of glutaric acid to a lower energy as seen in the IR ( Figure 2 ). Carraher reports two absorption ranges for the carbonyl group in poly(tin carboxylates), 1635-1660 and 1550-1580 cm −1 with pDMTGlu carbonyl absorptions at 1673 and 1563 cm −1 .…”

Synthesis and crystal structure determination of copper(II)-complex: In vitro DNA and HSA binding, pBR322 plasmid cleavage, cell imaging and cytotoxic studies

“…The IR spectrum of complex 1 exhibited strong bands at 1587 (n asym OCO) and 1337 cm À1 (n sym OCO) with Dn values (250 cm À1 ) indicating that carboxylate group was bonded to metal in a monodentate mode [12]. The bands at 849, 714 and 1492 cm À1 assigned to n(CeH) (out-of-plane CH) and n(C]N) of phenanthroline were shifted to lower frequencies compared to free phenanthroline revealing the coordination of phen N atoms with metal ion [13].…”

A ladder‐shaped dibutyltin(IV) carboxylate with 2‐(4‐ethylbenzoyl)benzoic acid: Synthesis, crystal structure, and luminescent property

“…The interesting stretching frequencies are those associated with the COO, Sn–C, and Sn–O groups. The strong and broad absorption at 3300–2900 cm −1 which appears in the spectra of the free ligand as the v (O–H) vibration is absent in the IR spectrum of complex 1 , which indicates the removal of COOH protons and the formation of the Sn–O bonds . It is further confirmed by the band at 454 cm −1 assigned to the Sn–O bonds of 1 , but absent in the spectra of the free ligand .…”

“…Dialkyltin carboxylate complexes, particularly, merit special attention owing to their excellent catalytic and anticancer activities . It is well known that most of the molecular structures of dialkyltin carboxylate complexes are n‐core (n≥4) ladder‐shaped structure, and the n‐core (n≥4) can be controlled by adjusting the metal‐to‐ligand molar ratio or the type of organic ligands . In addition to the charming ladder‐shaped molecular structure, many dialkyltin carboxylate complexes can organize themselves into interesting multidimensional supramolecular structures by hydrogen bonds or π‐π interactions …”