Inner coordination sphere tin(IV) complexes with some O,N,N-terdentate {N-(2-hydroxybenzaldehyde)-1-amino-2-phenyleneimine and N-(2-hydroxy-1-naphthaldehyde)-1-amino-2-phenyleneimine} and O,N,N,O-quadridentate {N,N′-bis(2-hydroxybenzaldehyde)-1,2-phenylenediimine and N,N′-bis(2-hydroxy-1-naphthaldehyde)-1,2-phenylenediimine} Schiff bases

Synthesis, Spectroscopic Characterization and Antibacterial Activity of Organotin(IV) Complexes Containing Hydrazone Ligand: X-ray Single Crystal Structure of [<i>n</i>-Bu₂Sn(H₂PAI).H₂O]

“…The positive shifting of hydrazinic stretching ν(N-N) band of free ligand (1) observed at 903 cm -1 to the higher region at 916-929 cm -1 in the complexes (2-6) supports that the azomethine nitrogen is coordinated to Sn(IV) ion [13]. Coordination of the azomethine nitrogen is also consistent with the presence of a new band at 483-498 cm -1 , assigned to ν(Sn-N).…”

Synthesis, Characterization and Crystal Structure of a New Schiff Base Ligand from a Bis(Thiazoline) Template and Hydrolytic Cleavage of the Imine Bond Induced by a Co(II) Cation

“…It has been reported that the C=N cleavage occurs on a number of metal sites ranging from simple salts to mixed ligand complexes [19]- [22]. However, the solvent system, co-ligands and reaction conditions are also important factors [23]- [25]. The hydrolysis of Schiff bases in the presence of a metal ion is observed by Ghosh and coworkers [26].…”

Schiff Bases Derived from 2-Hydroxynaphthalene-1-carbaldehyde and their Metal Complexes

“…The well-known crystallographic bond length pattern as well as quinoid effects were detected in the fused ring system in both cases and O···H−N type of intra-molecular hydrogen bonding was established in both Schiff base compounds [52]. Teoch et al [53] prepared new Schiff bases N-(2-hydroxynaphthalene-1-carbaldehyde)-1-amino-2-phenylene azomethine and N,N-bis(2-hydroxynaphthalene-1-carbaldehyde)-1,2-phenylenediazomethine from the condensation of 2-hydroxynaphthalene-1-carbaldehyde with 1,2-phenylenediamine (Fig. 12).…”

“…12). The prepared ligands were characterized using spectroscopic methods and found that the obtained imine compounds show cursory intra-molecular -C=N-bond linkage and intermolecular -C=N-bond linkage [53]. Akkurt et al [54] reported the structure of 4-[(2-hydroxy naphth-1-yl methylidene)amino}-3,5-diethoxy carbonyl-4-methyl thiophene (Fig.…”