Crystal structure, theoretical and experimental electronic structure and DNA/BSA protein interactions of nickel(II) N2O2 tetradentate Schiff base complexes

Polyhedron ◽  
2017 ◽  
Vol 138 ◽  
pp. 88-102 ◽  
Author(s):  
S. Gandhimathi ◽  
M. Theetharappan ◽  
Nattamai S.P. Bhuvanesh ◽  
M.A. Neelakantan
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Schiff Base ◽  
Protein Interactions ◽  
Schiff Base Complexes ◽  
Tetradentate Schiff Base

Synthesis, Spectroscopy and Structure of Diorganotin(IV) Schiff Base Complexes

1999 ◽  
Vol 54 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Dilip Kumar Dey ◽  
Mrinal Kanti Das ◽  
Heinrich Nöth
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Nmr Spectra ◽  
Schiff Base Complexes ◽  
Solution Nmr ◽  
X Ray ◽  
Tetradentate Schiff Base ◽  
Ir And Nmr Spectroscopy ◽  
Structure Determinations ◽  
Solid State Structures

Three diorganotin(IV) chelates with a tetradentate Schiff base, H2Vanophen, [H2Vanophen = N,N′-1,2-phenylen-bis(3-methoxysalicylideneimine)] of the type R2Sn(Vanophen) (R = Ph: 1; R = n-Bu: 2; R = Me: 3) have been synthesized by the reaction of R2SnCl2 (R = Ph, n-Bu, Me) and H2 Vanophen in the presence of triethylamine in benzene. The complexes have been characterised by IR and NMR spectroscopy and by elemental analysis. The δ(119Sn) values for the complexes 1 - 3 are -543.0, -414.2 and -398.2 ppm respectively, indicating hexacoordinated Sn centers. These have been ascertained by X-ray crystal structure determinations of 1 and 3. The distances between tin and the two axial carbon atoms in each complex differ not significantly [2.17(1) Å in 1, and 2.100(3) and 2.115(3) Å in 3). The C-Sn-C angles for 1 and 3 are 165.9(4)° and 159.96(9)°, respectively. The solution NMR spectra (1H , 13C, 119Sn) show clearly that the solid state structures are retained in solution.

Mixed-ligand copper(ii) Schiff base complexes: the vital role of co-ligands in DNA/protein interactions and cytotoxicity

2017 ◽  
Vol 41 (3) ◽  
pp. 1267-1283 ◽  
Author(s):  
Sellamuthu Kathiresan ◽  
Subramanian Mugesh ◽  
Jamespandi Annaraj ◽  
Maruthamuthu Murugan
Keyword(s):  
Cell Death ◽  
Cell Wall ◽  
Schiff Base ◽  
Protein Interactions ◽  
Apoptotic Cell ◽  
Vital Role ◽  
Mixed Ligand ◽  
Schiff Base Complexes ◽  
Antibacterial Mechanism

Four new mixed-ligand copper(ii) complexes display an antibacterial mechanism of cell death via cell-wall rupture and cytotoxicity via apoptotic cell death.

Electronic Structure of Pseudotetrahedral Copper(II) Schiff Base Complexes

1977 ◽  
Vol 32 (5) ◽  
pp. 551-561 ◽  
Author(s):  
John R. Wasson ◽  
H. Wayne Richardson ◽  
William E. Hatfield
Keyword(s):  
Electronic Structure ◽  
Schiff Base ◽  
Schiff Bases ◽  
Opposite Direction ◽  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Schiff Base Complexes ◽  
Hyperfine Coupling Constants ◽  
Structure Correlations

Copper(II) complexes with the Schiff bases formed by condensing t-butyl-, isopropyl-, cyclohexyl- and diphenylmethylamines with salicylaldehyde and 3-methoxy- and 5-nitrosalicyl-aldehyde have been prepared and characterized. The isotropic nuclear hyperfine coupling constants increase in the order t-butyl < isopropyl < cyclohexyl < diphenylmethyl for the N-substituents in the three series of complexes while isotropic g-values increased in the opposite direction. Spectra structure correlations were examined and discussed.

Synthesis, crystal structure and antiradical effect of copper(ii) Schiff base complexes containing five-, six- and unusual seven-membered rings

2011 ◽  
Vol 40 (7) ◽  
pp. 1484 ◽  
Author(s):  
Zita Puterová ◽  
Jindra Valentová ◽  
Zuzana Bojková ◽  
Jozef Kožíšek ◽  
Ferdinand Devínsky
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Complexes ◽  
Effect Of Copper

Nickel(II) complex with an asymmetric tetradentate Schiff base ligand: synthesis, characterization, crystal structure, and DFT studies

2018 ◽  
Vol 71 (22) ◽  
pp. 3748-3762 ◽  
Author(s):  
Vajiheh Torabi ◽  
Hadi Kargar ◽  
Alireza Akbari ◽  
Reza Behjatmanesh-Ardakani ◽  
Hadi Amiri Rudbari ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Dft Studies ◽  
Tetradentate Schiff Base ◽  
Ligand Synthesis
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