Neutral penta-coordinated diorganotin(IV) complexes derived from ortho-aminophenol Schiff bases: Synthesis, characterization and molecular structures

Basu, Smita; Gupta, Gajendra; Das, Babulal; Rao, Kollipara Mohan

doi:10.1016/j.jorganchem.2010.05.026

Cited by 32 publications

(9 citation statements)

References 39 publications

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“…Compounds 5a and 6a were synthesized according to Scheme by treatment of dichloro(phenoxy)phenylsilane ( 7 ) with one molar equivalent of the O , N , O pre‐ligand 8 10 or the N , N , O pre‐ligand 9 and two molar equivalents of triethylamine. The syntheses were performed in tetrahydrofuran, and the products were isolated after crystallization from acetonitrile (yields: 5a 65 % and 6a 68 %).…”

Section: Resultsmentioning

confidence: 99%

Neutral Pentacoordinate Silicon(IV) Complexes with a Tridentate Dianionic O,N,O or N,N,O Ligand, an Anionic PhX Ligand (X = O, S, Se), and a Phenyl Group: Synthesis and Structural Characterization in the Solid State and in Solution

Weiß¹,

Theis²,

Baus³

et al. 2013

Zeitschrift anorg allge chemie

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Section: Resultsmentioning

confidence: 99%

Neutral Pentacoordinate Silicon(IV) Complexes with a Tridentate Dianionic O,N,O or N,N,O Ligand, an Anionic PhX Ligand (X = O, S, Se), and a Phenyl Group: Synthesis and Structural Characterization in the Solid State and in Solution

Weiß¹,

Theis²,

Baus³

et al. 2013

Zeitschrift anorg allge chemie

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“…Six coordinated systems are common for highly acidic Lewis R 2 SnX 2 classes but are rare for tetra-and triorganotins. 25 Actually an increase of elec- Fig. 1.…”

Section: Description Of the Structurementioning

confidence: 95%

Diorganotin(IV) Complexes with Monohydrate Disodium Salt of Iminodiacetic Acid: Synthesis, Characterization, Crystal Structure and Biological Activities

Hussain¹,

Ali

Shahzadi

et al. 2015

J Chinese Chemical Soc

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Diorganotin(IV) derivatives have been synthesized by the reaction of R2SnL2 (R=n‐Bu 1, Ph 2) with monohydrate disodium salt of iminodiacetic acid (Na2L) in 1 : 1 M/L ratio under reflux conditions. The compounds have been characterized by FT‐IR, NMR (1H and 13C) spectoscopy, electron ionization mass spectrometry (EIMS), thermogravimetric analyses (TGA) and single crystal XRD. FTIR data indicates a mono‐dentate binding mode of the carboxylic acid group as well as participation of the amino nitrogen and aqua oxygen in coordination with organotin(IV) moieties. NMR data demonstrates a tetra‐coordinated environment around tin(IV) in solution. Mass spectrometric and thermogravimetric analyses verify the close similarities between the molecular structures of both complexes. The thermal stability of diphenyltin(IV) derivative (2) was found slightly higher than that of the free ligand (Na2L). Single crystal X‐ray analysis of the complex 1 have shown a hexa‐coordinated geometry around Sn(IV) with trans configuration. There are evidences for the existence of intermolecular hydrogen bonding in the structure of the complexes. The products displayed significant antibacterial and antifungal activities in contrast to the biologically inactive ligand precursor. However, the hemolytic cytoxicity of the complexes was comparatively high than the free ligand.

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“…For some recent examples of transition metal complexes of Schiff bases, see: Ouari et al (2015b); Benghanem et al (2012); Basu et al (2010). For the biological activity of Schiff bases, see: Yıldız et al (2015); Salama et al (2015); Zayed et al (2015).…”

Section: Related Literaturementioning

confidence: 99%

Crystal structure of 4-bromo-2-(1H-imidazo[4,5-b]pyridin-2-yl)phenol

Ouari

2015

Acta Cryst E

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In the title compound, C12H8BrN3O, the 4-bromophenol ring is coplanar with the planar imidazo[4,5-b]pyridine moiety (r.m.s deviation = 0.015 Å), making a dihedral angle of 1.8 (2)°. There is an intramolecular O—H⋯N hydrogen bond forming an S(6) ring motif. In the crystal, molecules are linked via N—H⋯N and O—H⋯Br hydrogen bonds, forming undulating sheets parallel to (10-2). The sheets are linked by π–π interactions [inter-centroid distance = 3.7680 (17) Å], involving inversion-related molecules, forming a three-dimensional structure.

show abstract

Neutral penta-coordinated diorganotin(IV) complexes derived from ortho-aminophenol Schiff bases: Synthesis, characterization and molecular structures

Cited by 32 publications

References 39 publications

Neutral Pentacoordinate Silicon(IV) Complexes with a Tridentate Dianionic O,N,O or N,N,O Ligand, an Anionic PhX Ligand (X = O, S, Se), and a Phenyl Group: Synthesis and Structural Characterization in the Solid State and in Solution

Neutral Pentacoordinate Silicon(IV) Complexes with a Tridentate Dianionic O,N,O or N,N,O Ligand, an Anionic PhX Ligand (X = O, S, Se), and a Phenyl Group: Synthesis and Structural Characterization in the Solid State and in Solution

Diorganotin(IV) Complexes with Monohydrate Disodium Salt of Iminodiacetic Acid: Synthesis, Characterization, Crystal Structure and Biological Activities

Crystal structure of 4-bromo-2-(1H-imidazo[4,5-b]pyridin-2-yl)phenol

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