scholarly journals Bis-(3,5-dimethyl salicylidine)-ethylenediamine as a Gravimetric Reagent for Cu(II)

2020 ◽  
Vol 36 (05) ◽  
pp. 980-984
Author(s):  
Bijay Kumar ◽  
Santosh Kumar Sethi ◽  
Ashok Kumar Yadav
Keyword(s):  
Melting Point ◽  
Elemental Analysis ◽  
Conductivity Measurement ◽  
Spectroscopic Studies ◽  
Molecular Formula ◽  
Melting Point Determination ◽  
Square Planar ◽  
Point Determination ◽  
Prepared Complex

Complex of Cu(II) with bis-(3,5-dimethyl salicylidine)-ethylenediamine was synthesized and characterized by elemental analysis, melting point determination, conductivity measurement, magnetic and spectroscopic studies. Molecular formula of the newly prepared complex was determined as C20H22N2O2Cu and the probable geometry has been suggested as square planar. Gravimetric estimation of Cu(II) was made with bis-(3,5-dimethyl salicylidine)-ethylenediamine and the result was compared with the known method of estimation of Cu(II) iodometrically. It was found that the result of estimation with newly prepared reagent was as good as the reported result of estimation of Cu(II) iodometrically.

Synthesis, Characterization and Neurotoxicity Screening of Schiff Base Ligands and their Complexes

2012 ◽  
Vol 554-556 ◽  
pp. 938-943
Author(s):  
Ahmad Fauzi Abu Bakar ◽  
Hadariah Bahron ◽  
Karimah Kassim
Keyword(s):  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Melting Point ◽  
Nmr Spectroscopy ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
1H Nmr Spectroscopy ◽  
Schiff Base Ligands ◽  
Melting Point Determination ◽  
Point Determination

Two ligands and four complexes are successfully synthesized by reacting 1,8-diaminonapthelene with aldehyde/ketone derivatives in ratio amine:aldehyde/ketone (1:2) for ligands formation and 1:1 ratio (ligand:metals) for complexes formation. The compounds were characterized through CHNS elemental analysis, IR spectroscopy, 1H NMR spectroscopy, melting point determination, and magnetic susceptibility determination. The neurotoxicity screening of compounds was screened using neuroblastoma SH-SY5Y cell lines and it was indicate the cells were non-toxic either for ligands and complexes after 24 hours exposure.

scholarly journals Synthesis, Characterization, and Antimicrobial Activity Studies of Ni(II) Complex with Pyridine as a Ligand

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Faridul Islam ◽  
Md. Amran Hossain ◽  
Nur Mostaq Shah ◽  
Hridika Talukder Barua ◽  
Md. Alamgir Kabir ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Nmr Spectra ◽  
Conductivity Measurement ◽  
Molar Conductivity ◽  
Molecular Formula ◽  
H Nmr ◽  
Square Planar ◽  
Elemental Analyses ◽  
Prepared Complex ◽  
C Nmr

We represent a metal complex which has been synthesized by the simple reaction with Ni(II) chloride and pyridine (as a lignd) affording a complex having the molecular formula [NiC5H5N2Cl2], characterized on the basis of elemental analyses, electronic, infrared,1H NMR,13C NMR spectra, magnetic susceptibility, and also aid of molar conductivity measurement. Conductivity measurement reveals nonelectrolytic nature of the complex. IR and13C NMR spectra reveal the presence ofcis- andtrans-structure. On the basis of above analyses the square planarcis- andtrans-structures are proposed for the prepared complex.

Solvent-Free Green Synthesis of 4-amino-5-substituted-1,2,4-triazole-3-thione by Grinding

2015 ◽  
Vol 1088 ◽  
pp. 367-370
Author(s):  
Yu Ting Liu ◽  
Si Meng Song ◽  
Da Wei Yin
Keyword(s):  
Melting Point ◽  
Green Synthesis ◽  
1H Nmr ◽  
Elemental Analysis ◽  
Efficient Method ◽  
Cost Effective ◽  
Phosphorus Pentachloride ◽  
Synthetic Method ◽  
Melting Point Determination ◽  
Point Determination

A novel efficient method for the synthesis of 4-amino-5- substituted-1,2,4- triazole -3-thione was developed in which substituted aromatic/aliphatic acids with symmetrical dithiocarbohydrazones were used as starting materials and phosphorus pentachloride was used as catalyst.The structures of these products were confirmed by melting point determination, IR, 1H NMR and elemental analysis. This is a novel and cost-effective synthetic method. In addition, the synthetic method avoids the use of organic solvents and significantly improves reaction yields.

scholarly journals Synthesis of 3-Ferrocenyl Isocoumarins

2020 ◽  
Vol 36 (05) ◽  
pp. 976-979
Author(s):  
Neeta Sinha
Keyword(s):  
Spectral Analysis ◽  
Melting Point ◽  
Phosphoric Acid ◽  
Polyphosphoric Acid ◽  
Aluminium Chloride ◽  
Melting Point Determination ◽  
Anhydrous Aluminium Chloride ◽  
Point Determination ◽  
Derivatives Of

The derivatives of 3-ferrocenyl isocoumarin were synthesized by the condensation of substituted homothphalic anhydride with ferrocene using phosphoric acid or anhydrous aluminium chloride as cyclising agent. Substituted homophthalic acid did not condense with ferrocene so homophthalic acids were converted into their anhydride and then allowed to react with ferrocene in the presence of polyphosphoric acid or in the presence of anhydrous aluminium chloride using dichloromethane as the solvent to give 3-ferrocenyl isocoumarins. 7-Methoxy, 6-methyl, 5,7-dihydroxy, 6,7-dimethoxy and 5,7-dimethoxy derivatives of 3-ferrocenyl isocoumarin were synthesized. All the compounds were characterised by melting point determination, elemental and spectral analysis.

scholarly journals Painless Melting Point Determination

2011 ◽  
Vol 89 (14) ◽  
pp. 23
Keyword(s):  
Melting Point ◽  
Melting Point Determination ◽  
Point Determination

scholarly journals Painless Melting Point Determination

2009 ◽  
Vol 87 (3) ◽  
pp. 62
Keyword(s):  
Melting Point ◽  
Melting Point Determination ◽  
Point Determination

scholarly journals Painless Melting Point Determination

2009 ◽  
Vol 87 (33) ◽  
pp. 12
Keyword(s):  
Melting Point ◽  
Melting Point Determination ◽  
Point Determination

Melting point determination of the K2SO4-NaCl system

1993 ◽  
Vol 12 (22) ◽  
pp. 1733-1734 ◽  
Author(s):  
S. Ahila ◽  
S. Ramakrishna Iyer ◽  
V. M. Radhakrishnan
Keyword(s):  
Melting Point ◽  
Melting Point Determination ◽  
Point Determination

scholarly journals Melting point determination

1909 ◽  
Vol s4-28 (167) ◽  
pp. 453-473 ◽  
Author(s):  
W. P. White
Keyword(s):  
Melting Point ◽  
Melting Point Determination ◽  
Point Determination
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