Electrochemical synthesis and magnetic studies of neutral transition metal imidazolates and pyrazolates

1995 ◽  
Vol 20 (1) ◽  
Author(s):  
AngelicaM. Vecchio-Sadus
Keyword(s):  
Transition Metal ◽  
Electrochemical Synthesis ◽  
Magnetic Studies ◽  
Metal Imidazolates

Synthesis, Spectral and Antimicrobial Investigation of 2-(Naphthalenel-ylamino)-2- Phenylacetonitrile and 1, 10-Phenanthroline with Five Divalent Transition Metal Ions

2019 ◽  
Vol 10 (01) ◽  
Author(s):  
Mohammed Al-Amery1 ◽  
Ashraf Saad Rasheed ◽  
Dina A. Najeeb
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Mixed Ligand ◽  
Gram Negative Bacteria ◽  
Magnetic Studies ◽  
Gram Positive Bacteria

Five new mixed ligand metal complexes have been synthesized by the reaction of divalent transition metal ions (Hg, Ni, Zn, Cu and Cd) with 2-(naphthalen-l-ylamino)-2-phenylacetonitrile (L1 ) and 1,10-phenanthroline (L2). The coordination likelihood of the two ligands toward metal ions has been suggested in the light of elemental analysis, UV-Vis spectra, FTIR, 1H-NMR, flam atomic absorption, molar conductance and magnetic studies. Results data suggest that the octahedral geometry for all the prepared complexes. Antibacterial examination of synthesized complexes in vitro was performed against four bacterias. Firstly, Gram-negative bacteria namely, Pseudomonas aerugin and Escherichia. Secondly, Gram-positive bacteria namely, Bacillus subtilis, Staphylococcuaurouss. Results data exhibit that the synthesized complexes exhibited more biological activity than tetracycline pharmaceutical.

Transition metal complexes with pyrazole based ligands, part 18: new binuclear Cu(I), Cu(II) and Co(II) complexes with 3,5-dimethyl-1-thiocarboxamide pyrazole: synthesis, structural and magnetic studies

2004 ◽  
Vol 357 (15) ◽  
pp. 4528-4536 ◽  
Author(s):  
Ivana Radosavljević Evans ◽  
Judith A.K. Howard ◽  
Luciano E.M. Howard ◽  
John S.O. Evans ◽  
Željko K. Jaćimović ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Magnetic Studies

3d - 4f Heterometallic Complexes for the Construction of POM-based Inorganic - Organic Hybrid Compounds: from Nanoclusters to One-Dimensional Ladder-Like Chains

2010 ◽  
Vol 63 (9) ◽  
pp. 1389 ◽  
Author(s):  
Dongying Du ◽  
Junsheng Qin ◽  
Shunli Li ◽  
Yaqian Lan ◽  
Xinlong Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Complexes ◽  
Lanthanide Complexes ◽  
Copper Complexes ◽  
Heterometallic Complexes ◽  
Magnetic Studies ◽  
One Dimensional ◽  
Organic Hybrid ◽  
Hybrid Compounds ◽  
Polyanion Chain

Three polyoxometalate-based inorganic–organic hybrid compounds, namely nanoclusters [Cu(en)2H2O]3[(α-SiW11O39)Nd(H2O)(η2,μ-1,1)-CH3COO]·3.5H2O (1) and [Cu(en)2H2O]3[(α-SiW11O39)Sm(H2O)(η2,μ-1,1)-CH3COO]·3H2O (2), and 1D H2[Cu(en)2H2O]8[Cu(en)2]3[{(α-SiW11O39)Ce(H2O)(η2,μ-1,1)-CH3COO}4]·22H2O (3) (en = 1,2-ethylenediamine) have been isolated. 1 and 2 are isomorphic and consist of [(α-SiW11O39)Ln(H2O)(η2,μ-1,1)-CH3COO]6– polyanions modified by [Cu(en)2H2O]2+ fragments. In 3, [Cu(en)2H2O]2+ are grafted on [(α-SiW11O39)Ce(H2O)(η2,μ-1,1)-CH3COO]6– polyanions and further connected by [Cu(en)2]2+ groups, representing the first example in polyoxometalate chemistry of a 1D ladder-like polyanion chain consisting of monovacant Keggin-type polyanions, lanthanide complexes and transition metal complexes. In these compounds, copper complexes coordinate to not only terminal O atoms but also bridging O atoms of the polyanions. Magnetic studies of 1 and 3 reveal weak antiferromagnetic interactions exist in them.

Hydrothermal synthesis and magnetic studies of transition metal nocerites M3(BO3)F3 (M=Fe, Co, Ni)

2001 ◽  
Vol 234 (3) ◽  
pp. 423-430 ◽  
Author(s):  
Gwenaël Corbel ◽  
Emmanuelle Suard ◽  
Jean Voiron ◽  
Marc Leblanc
Keyword(s):  
Hydrothermal Synthesis ◽  
Transition Metal ◽  
Magnetic Studies

Transition metal complexes of 1,2,4-triazole: Electronic and magnetic studies

Polyhedron ◽  
1995 ◽  
Vol 14 (11) ◽  
pp. 1477-1486 ◽  
Author(s):  
S Zaydoun ◽  
M.Saidi Idrissi ◽  
A Zrineh ◽  
B Agricole ◽  
C Garrigou-Lagranage
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Magnetic Studies
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