Synthesis of Metal Complexes of 1‐Phenyl‐3‐methyl‐4‐benzoylpyrazole‐5‐one Semicarbazone by Solid‐State and Solution Reactions

2005 ◽  
Vol 35 (4) ◽  
pp. 269-274 ◽  
Author(s):  
Lang Liu ◽  
Dianzeng Jia
Keyword(s):  
Solid State ◽  
Metal Complexes

scholarly journals Functionalised Terpyridines and Their Metal Complexes—Solid-State Interactions

Chemistry ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 199-227
Author(s):  
Young Hoon Lee ◽  
Jee Young Kim ◽  
Sotaro Kusumoto ◽  
Hitomi Ohmagari ◽  
Miki Hasegawa ◽  
...  
Keyword(s):  
Solid State ◽  
Metal Complexes ◽  
Crystal Structures ◽  
Weak Interactions ◽  
Dispersion Interactions ◽  
Derivatives Of

Analysis of the weak interactions within the crystal structures of 33 complexes of various 4′-aromatic derivatives of 2,2′:6′,2″-terpyridine (tpy) shows that interactions that exceed dispersion are dominated, as expected, by cation⋯anion contacts but are associated with both ligand–ligand and ligand–solvent contacts, sometimes multicentred, in generally complicated arrays, probably largely determined by dispersion interactions between stacked aromatic units. With V(V) as the coordinating cation, there is evidence that the polarisation of the ligand results in an interaction exceeding dispersion at a carbon bound to nitrogen with oxygen or fluorine, an interaction unseen in the structures of M(II) (M = Fe, Co, Ni, Cu, Zn, Ru and Cd) complexes, except when 1,2,3-trimethoxyphenyl substituents are present in the 4′-tpy.

scholarly journals Determination of the Ratios of Ligands to Metal Ion of some Metal Complexes of Triazoles by Using Eleetronie Speetra in Organie Solvents

2004 ◽  
Vol 1 (1) ◽  
pp. 110-115
Author(s):  
Baghdad Science Journal
Keyword(s):  
Solid State ◽  
Metal Complexes ◽  
Electronic Spectra ◽  
Metal Ion ◽  
The Other ◽  
Molar Ratio ◽  
Other Hand

We found that 4,5- diphenyl- 3(2- propynyl) thio- 1??-triazole [1? forms a complex with Pd (11) ion of ratio 1:1 which absorbs light in CH2CI2 at 400 nm, and 4,5- diphenyl- 3(2- propenyl) thio- 1,2,4- triazole [II] forms complexes with Pd (II) ion of ratio 1:1 which absorbs light at 390 nm, and of ratio 2:1 which absorbs light at 435 nm. On the other hand, we found that the new derivative 4- phenyl- 5( p- amino phenyl) -3- mercapto- 1,2,4- triazole ?111? forms complexes with Cu (II) ion of the ratio 1:1 which absorbs light at 380 nm, with Ni (II) ion of the ratio 3:1 which absorbs light at 358 nm; and with Co (11) ion of the ratio 3.2:1 which absorbs light at 588 nm. The ratio of the complexes were determined by measuring the electronic spectra of the complexes in CH2G2 and (CH^NCHO at different concentrations ofthe ligands and f?xed ' •' of the metal ion in every case, then applying the molar ratio plots on the data. Our results were confirmed by precipitating most ofthe above complexes in solid state, and then each complex was analyzed elementally.

Group 12 metal complexes with P,N chelating triarylphosphanes. Solution behaviour and solid state structure

Polyhedron ◽  
2020 ◽  
Vol 182 ◽  
pp. 114511
Author(s):  
Andrea Dobri ◽  
Alexandru Covaci ◽  
Ancuța Covaci ◽  
Anca Silvestru
Keyword(s):  
Solid State ◽  
Metal Complexes ◽  
State Structure ◽  
Solid State Structure ◽  
Group 12 ◽  
Solution Behaviour

Stereoselective interactions as manifested by vibrational circular dichroism spectra: the interplay between chiral metal complexes co-adsorbed in a montmorillonite clay

2018 ◽  
Vol 20 (39) ◽  
pp. 25421-25427 ◽  
Author(s):  
Hisako Sato ◽  
Kazuyoshi Takimoto ◽  
Hirotoshi Mori ◽  
Akihiko Yamagishi
Keyword(s):  
Circular Dichroism ◽  
Solid State ◽  
Metal Complexes ◽  
Montmorillonite Clay ◽  
Vibrational Circular Dichroism ◽  
Circular Dichroism Spectra ◽  
Circular Dichroïsm

Solid state VCD is applied for intercalated metal complexes.

scholarly journals Microwave Synthesis, Spectral, Thermal and Antimicrobial Studies of Some Co(II), Ni(II) and Cu(II) Complexes Containing 2-Aminothiazole Moiety

2012 ◽  
Vol 9 (4) ◽  
pp. 1655-1666 ◽  
Author(s):  
A. P. Mishra ◽  
H. Purwar ◽  
Rajendra K. Jain ◽  
S. K. Gupta
Keyword(s):  
Electrical Conductivity ◽  
Schiff Base ◽  
Solid State ◽  
Metal Complexes ◽  
Analytical Data ◽  
Xrd Analysis ◽  
Lattice Parameter ◽  
Molar Conductance ◽  
Unit Cell ◽  
Antimicrobial Studies

Some new Schiff base metal complexes of Co(II), Ni(II) and Cu(II) derived from 4-chlorobenzylidene-2-aminothiazole (CAT) and 2-nitrobenzylidene-2-aminothiazole (NAT) have been synthesized by conventional as well as microwave methods. These compounds have been characterized by elemental analysis, FT-IR, FAB-mass, molar conductance, electronic spectra, ESR, magnetic susceptibility, thermal, electrical conductivity and XRD analysis. The complexes are coloured and stable in air. Analytical data revealed that all the complexes exhibited 1:2 (metal:ligand) ratio with coordination number 4 or 6. FAB-mass and thermal data show degradation pattern of the complexes. The thermal behavior of metal complexes shows that the hydrated complexes loses water molecules of hydration in the first step; followed by decomposition of ligand molecules in the subsequent steps. The crystal system, lattice parameter, unit cell volume and number of molecules in unit cell in the lattice of complexes have been determined by XRD analysis. XRD patterns indicate crystalline nature for the complexes. The solid state electrical conductivity of the metal complexes has also been measured. Solid state electrical conductivity studies reflect semiconducting nature of the complexes. The Schiff base and metal complexes show a good activity against the Gram-positive bacteria;Staphylococcus aureusand Gram-negative bacteria;Escherichia coliand fungiAspergillus nigerandCandida albicans.

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