ChemInform Abstract: Transition Metal Complexes of the Novel Tridentate Di-2- pyridylmethanamine (dipa).

ChemInform ◽  
2010 ◽  
Vol 24 (4) ◽  
pp. no-no
Author(s):  
P. V. BERNHARDT ◽  
P. COMBA ◽  
A. MAHU-RICKENBACH ◽  
S. STEBLER ◽  
S. STEINER ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
The Novel

scholarly journals Ultraviolet Radiation and Salinity-Induced Physiological Changes and Scytonemin Induction in Cyanobacteria Isolated from Diverse Habitats

2021 ◽  
Vol 12 (3) ◽  
pp. 3590-3606
Keyword(s):  
Antimicrobial Activity ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Antimicrobial Agents ◽  
Free Ligand ◽  
The Novel ◽  
Bacterial Strains ◽  
Resistant Strains ◽  
Antimicrobial And Antifungal Activity

A novel series of transition metal (II) complexes (5a-h) were conveniently synthesized via reaction of important transition metals (Co, Cu, Zn, Ni) with (E)-N-(4-methylbenzylidene)-2-((Z)-(4-methylbenzylidene)amino)benzamide Schiff base (3) which was previously synthesized by reacting 2- aminobenzohydrazide (1) with 4-methylbenzaldehyde (2). The synthesized metal complexes' structure was elucidated by IR, NMR, mass, and elemental analysis. Additionally, we also evaluated the antioxidant, antimicrobial and antifungal activity of the synthesized metal complexes. The bioassay of the novel transition metal complexes envisioned that compounds5eand5c showed better antimicrobial activity than the free ligand, and compounds5g and 5a showed good activity against most bacterial strains. On the other hand, hydrated metal complexes 5b, 5d, 5f, and 5h showed moderate to good antimicrobial activity. In comparison with ascorbic acid, most of the metal complexes showed moderate to good antioxidant activity. The current bioassay was investigated and proved that the compounds 5e and 5c as antimicrobial agents act on highly resistant strains of microbes.

Transition metal complexes of the novel tridentate di-2-pyridylmethanamine (dipa)

1992 ◽  
Vol 31 (20) ◽  
pp. 4194-4200 ◽  
Author(s):  
Paul V. Bernhardt ◽  
Peter Comba ◽  
Anne Mahu-Rickenbach ◽  
Sandra Stebler ◽  
Silvio Steiner ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
The Novel

A DFT and QTAIM study of the novel d-block metal complexes with tetraoxa[8]circulene-based ligands

2015 ◽  
Vol 39 (10) ◽  
pp. 7815-7821 ◽  
Author(s):  
Nataliya N. Karaush ◽  
Gleb V. Baryshnikov ◽  
Valentina A. Minaeva ◽  
Boris F. Minaev
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Metal Cation ◽  
The Novel ◽  
Cation Size ◽  
Complexation Process

The transition metal complexes with the tetraoxa[8]circulene-based ligand are designed. The complexation process strictly depends on matching of the d-metal cation size to the size of the tetraoxa[8]circulene formed cavity.

scholarly journals TRANSITION METAL COMPLEXES OF THE FORMYL VANILLINE DERIVATIVES LIGAND FAMILY

1997 ◽  
Vol 5 (5) ◽  
pp. 67-77
Author(s):  
Tudor ROSU ◽  
Angela KRIZA ◽  
Viorel CARCU ◽  
Anca NICOLAE
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Electronic Spectroscopy ◽  
The Novel ◽  
3D Metal Complexes ◽  
Derivatives Of

Divalent 3d metal complexes with formyl-vanilline derivatives, of lite type ML2 or ML2X2 (M = Cu(II), Co(II); X = Cl), were sythesized by reaction of the corresponding metal(II) chlorides with 1-[3-formyl-4-methoxy-6-hidroxybemilydene]-2-phenazinoyllhydrazine, (FDFH), 1-benzilydene-2-phenazinoyhydrazine, (BFH), and 3-formyl-5,6-dihydroxybemilydenc-2-nitro-1--methylaniline, (FBAH). The novel complexes were characterized by ESR, IR, electronic spectroscopy, molar electric conductibility measurements and magnctk studies. These compounds appear to bn hexacoordinated.

Synthesis, characterization, and X-ray structural studies of octahedral transition metal complexes incorporating the novel anionic tridentate ligand, dimethyl(ethanolamino)(1-pyrazolyl)- gallate, [Me2Ga(OCH2CH2NH2)(N2C3H3)]−

1978 ◽  
Vol 56 (9) ◽  
pp. 1212-1221 ◽  
Author(s):  
Kenneth S. Chong ◽  
Steven J. Rettig ◽  
Alan Storr ◽  
James Trotter
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Tridentate Ligand ◽  
The Novel ◽  
Structural Studies ◽  
Space Group ◽  
X Ray ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

Details of the synthesis and physical properties of octahedral transition metal complexes of the tridentate tris chelating ligand [Me2Ga(OCH2CH2NH2)(N2C3H3)]− are given. Crystals of sym-fac-bis[dimethyl(ethanolamino)(1-pyrazolyl)gallato(N(2),O,N]nickel(II) are monoclinic, a = 11.7908(6), b = 7.3158(6), c = 12.5797(8), β = 97.035(7)°, Z = 2, space group P21/n and crystals of the mer isomer are monoclinic, a = 18.6617(7), b = 8.7941(4), c = 13.5670(8), β = 91,766(4)°, Z = 4, space group P21/c. The structures were solved by Patterson and Fourier syntheses and were refined by full-matrix least-squares procedures to final R values of 0.048 and 0.052 for 1881 and 2573 reflections with I ≥ 3σ(I) for the fac and mer isomers respectively. The nickel atoms in both structures were found to have distorted octahedral coordination geometry. Bond lengths (corrected for libration) are: Ni—O, 2.090(3); Ni—N, 2.085(3) and 2.112(3); Ga—O, 1.908(3); Ga—N, 2.010(3); and Ga—C, 1.979(5) and 1.981(6) Å for the fac isomer, and Ni—O, 2.045(4) and 2.049(4); Ni—N, 2.091 (4)-2.156(5); Ga—O, 1.898(4) and 1.899(4); Ga—N, two at 1.991 (5); and Ga—C, 1.948(8)-1.971 (7) Å for the mer isomer.

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