Results 141 to 150 of about 295,483 (210)

Acyclic and Macrocyclic Schiff Base Ligands

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
R. Hernandez‐Molina, A. Mederos
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An Enantiomerically Pure Schiff Base Ligand

Acta Crystallographica Section C Crystal Structure Communications, 1997
(1R,2R)-(-)-N,N'-bis(quinoline-2-methylidene)-1,2-cyclo-hexanediamine, C 26 H 24 N 4 , was prepared by the reaction of quinoline-2-carbaldehyde and the corresponding diamine. The crystal structure of the resulting enantiomerically pure quadridentate ligand has been determined.
A. S. Abu-Surrah, T. V. Laine, T. Repo, R. Fawzi, M. Steimann, B. Rieger   +5 more
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Synthesis, characterization, molecular docking and DNA cleavage study of transition metal complexes of o-vanillin and glycine derived Schiff base ligand

Journal of Molecular Structure, 2020
Schiff base ligand (E)-2-(2-hydroxy-3-methoxybenzylideneamino)acetic acid) and its Mn(II), Fe(II),Co(III),Ni (II), Cu(II) and Zn(II) complexes were synthesized and characterized by elemental analysis, UV–Vis, IR, 1H NMR, EPR and X-ray crystallography ...
Anindita De, Hari Prakash Ray, P. Jain, H. Kaur, Nikita Singh   +4 more
semanticscholar   +1 more source

Synthesis of acyclic dinucleating Schiff base-pyridine and schiff base-phosphine ligands

Tetrahedron Letters, 1995
Abstract 5-tert-butyl-3-pyridyl-salicyaldehyde and 5-tert-butyl-3-diphenylphosphino-salicyaldehyde have been synthesized from 4-tert-butylphenol in good overall yields. Condensation of the salicyaldehydes with 2,3-diamino-2-3-dimethylbutane afforded the desired dinucleating Schiff base-pyridine and Schiff base-phosphine ligands respectively.
Fung Lam, Kin Shing Chan
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Transition metal complexes of a multidentate Schiff base ligand containing guanidine moiety: Synthesis, characterization, anti-cancer effect, and anti-microbial activity

, 2020
Guanidine Schiff bases are famous for their distinctive features and medicinal benefits with potential applications for the control of bacterial infections and cancer development. The current study was performed with a prospect to the dinuclear series of
S. T. A. El-Razek, S. El-Gamasy, M. Hassan, M. Abdel‐Aziz, S. Nasr   +4 more
semanticscholar   +1 more source

Synthesis and Characterization of Polydentate Schiff-Base Ligands and Their Complexes

Bulletin of the Chemical Society of Japan, 2006
Abstract In this study, we synthesized the amine compounds 2-{(E)-[(2-aminoethyl)imino]methyl}phenol (H3A) and 2-{(E)-[(3-aminopropyl)imino]methyl}-6-methoxyphenol (H3B) as the starting materials. From reactions of the starting materials with 2-hydroxy-5-methylisophthalaldehyde, phthalaldehyde, and 2-hydroxy-5-t-butylisophthalaldehyde ...
Demirelli, HAVVA, Tuemer, Mehmet, Goelcue, Ayseguel   +2 more
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Synthesis, crystal structure and magnetic properties of a pentanuclear Mn(III) cluster with 1,2,4-triazole based Schiff base ligand

, 2020
The reaction of equimolar amounts of 2-hydroxy-5-iodobenzaldehyde and 5-(methylthio)-1H-1,2,4-triazol-3-amine in methanol yielded a new 1,2,4-triazole based Schiff base ligand, H2L, which was characterised by spectroscopic methods.
R. Bikas, Parinaz Mirzakhani, N. Noshiranzadeh, J. Sanchiz, M. Krawczyk, Dimitris A Kalofolias, T. Lis   +6 more
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Crystal structure and antibacterial properties of a new dinuclear copper complex based on an unsymmetrical NN′O type Schiff base ligand

, 2020
A new dinuclear copper(II) Schiff base complex, [Cu2L2(H2O)2(µ-ClO4)]ClO4, was synthesized and characterized by single crystal X-ray crystallography, FT-IR and UV-Vis spectroscopy, and elemental analysis.
Maryam Hasanzadeh Esfahani, M. Behzad
semanticscholar   +1 more source

Molybdenum–tetracarbonyl complexes with Schiff base ligands

Acta Crystallographica Section C Crystal Structure Communications, 1999
The single-crystal X-ray structure determinations of the title complexes, tetracarbonyl{2-[1-(methylimino)ethyl]-pyridine-N,N'}molybdenum(0), [Mo(C 8 H 10 N 2 )(CO) 4 ], and tetracarbonyl{2-[(methylimino)phenylmethyl]pyridine-N,N}molybdenum(0), [Mo(C 13 H 12 N 2 )(CO) 4 ], show that the molybdenum complexes exhibit distorted octahedral geometry.
A. Mentes, J. Fawcett, R. D. W. Kemmitt, D. R. Russell   +3 more
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Synthesis of chiral sulfonamide/Schiff base ligands

Tetrahedron: Asymmetry, 1998
Abstract We report a facile two step synthesis of chiral ligands for bonding to transition metals. The ligands are easily prepared from trans -1,2-diaminocyclohexane by reaction with sulfonyl chlorides to give amino-sulfonamide compounds. These intermediates are then condensed with salicylaldehyde derivatives to provide sulfonamide/Schiff base ...
Jaume Balsells, Lupe Mejorado, Mimi Phillips, Fernando Ortega, Gerardo Aguirre, Ratnasamy Somanathan, Patrick J. Walsh   +6 more
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