Synthesis, spectroscopic studies andab-initio structure determination from X-ray powder diffraction of bis-(N-3-acetophenylsalicylaldiminato)copper(II)

Banerjee, Saikat; Mukherjee, Amit; Banerjee, Ishita; De, Rajib Lal; Neumann, Marcus A.; Louër, D.

doi:10.1002/crat.200410437

Cited by 3 publications

(3 citation statements)

References 18 publications

(11 reference statements)

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“…2 E g and 2 B 1g ! 2 A 1g transitions, respectively [23,24], consistent with square-planar geometry. All other complexes have similar absorptions confirming the square-planar geometry around copper.…”

Section: Electronic Absorption Spectrasupporting

confidence: 72%

Synthesis, spectral characterization and antimicrobial activity of macrocyclic Schiff-base copper(II) complexes containing polycrystalline nanosized grains

Raman¹,

Joseph²

2009

Journal of Coordination Chemistry

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Schiff-base copper(II) complexes were prepared using macrocyclic ligands, synthesized by condensation of diethylmalonate with Schiff bases derived from o-phenylenediamine and Knoevenagel condensed -ketoanilides (obtained by the condensation of acetoacetanilide and substituted benzaldehydes). The ligands and their copper complexes were characterized by microanalytical, mass, UV-Vis, IR, 1 H-NMR, ESR and CV studies, as well as conductivity data. Microanalytical, mass and magnetic moment analyses are consistent with formation of monomeric [CuL]Cl 2 . Spectral studies indicate square-planar geometry around copper. The smaller grain sizes found from XRD data suggest that these complexes are polycrystalline with nanosized grains. The SEM images of [CuL 1 ]Cl 2 have leaf-like morphology. The in vitro biological screening of the investigated compounds against the bacteria Escherichia coli, Klebsiella pneumoniae, Salmonella typhi, Pseudomonas aeruginosa and Staphylococcus aureus and fungi Aspergillus niger, Rhizopus stolonifer, Aspergillus flavus, Rhizoctonia bataicola and Candida albicans were tested by the well diffusion method to assess growth inhibition. A comparative study of MIC values of the Schiff-base ligands and their complexes indicate that the complexes exhibit higher antimicrobial activity than the free ligands.

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Section: Electronic Absorption Spectrasupporting

confidence: 72%

Synthesis, spectral characterization and antimicrobial activity of macrocyclic Schiff-base copper(II) complexes containing polycrystalline nanosized grains

Raman¹,

Joseph²

2009

Journal of Coordination Chemistry

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“…Apparently conformational changes were from a relatively flat step form to a significantly sharp step form. [19].The compound has a formula C 30 H 24 CuN 2 O 4 . Novel feature mentioned is that the coordination geometry around the copper atom in the complex is intermediate between square-planar and tetrahedral with two salicylaldimine ligands in trans arrangement.…”

Section: Computationmentioning

confidence: 99%

Molecular Recognition of Trans-Chiral Schiff Base Metal Complexes for Induced CD

Akitsu¹,

Kominato²

2013

An Integrated View of the Molecular Recognition and Toxinology - From Analytical Procedures to Biomedical Applications

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“…It can be seen that the peak intensities and positions are almost the same between the experimental pattern and the Rietveld refinement treated pattern. The final Rwp of 14.95% was acceptable [6] .…”

Section: Rietveld Refinementmentioning

confidence: 98%

Crystal structure determining of 7-ADCA based on X-ray powder diffraction

Cheng

Guo

et al. 2006

CHINESE SCI BULL

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Optimum resolution data of X-ray powder diffraction for 7-amino desacetoxy cephalosporanic acid(7-ADCA) were collected from an X ′ Pert Pro MPD diffractometer with the setup of 0.01°/s and 0.01° per step. Indexing to the crystal system and searching space group from the diffraction data were conducted by means of the computational crystallography method. The pilot crystal models of 7-ADCA were then refined by Rietveld method to obtain the exact three-dimensional structure. The results show that the crystal structure of 7-ADCA is monoclinic, space group P2 1 with unit cell dimensions a=13.50 Å, b=6.01 Å, c =5.91 Å, α= γ =90.00°, β =101.96°, Z=2and V =469.10 Å 3 . The fraction coordinate of each atom in the unit cell is well located and reported.

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Synthesis, spectroscopic studies andab-initio structure determination from X-ray powder diffraction of bis-(N-3-acetophenylsalicylaldiminato)copper(II)

Abstract: The synthesis, spectroscopic studies and crystal structure determination from X-ray powder diffraction have been carried out for bis-(N-3-acetophenylsalicylaldiminato)copper(II). The structure is triclinic, space group P1 with unit cell dimensions a=11.817 (1)

Cited by 3 publications

References 18 publications

Synthesis, spectral characterization and antimicrobial activity of macrocyclic Schiff-base copper(II) complexes containing polycrystalline nanosized grains

Synthesis, spectral characterization and antimicrobial activity of macrocyclic Schiff-base copper(II) complexes containing polycrystalline nanosized grains

Molecular Recognition of Trans-Chiral Schiff Base Metal Complexes for Induced CD

Crystal structure determining of 7-ADCA based on X-ray powder diffraction

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