scholarly journals Synthesis and Characterization of Novel Methyl 2-(1,7,7-Tri methylbicyclo[2.2.1]hept-2-yieldene)hydrazinecarbodithioate Schiff Bases Derived From Methylhydrazine carbodithioate And Their Bi(III) And Ag(II) Complexes

2013 ◽  
Vol 10 (3) ◽  
pp. 607-617
Author(s):  
Baghdad Science Journal

Novel bidentate Schiff bases having nitrogen-sulphur donor sequence was synthesized from condensation of racemate camphor, (R)-camphor and (S)-camphor with Methyl hydrazinecarbodithioate (SMDTC). Its metal complexes were also prepared through the reaction of these ligands with silver and bismuth salts. All complexes were characterized by elemental analyses and various physico-chemical techniques. These Schiff bases behaved as uninegatively charged bidentate ligands and coordinated to the metal ions via ?-nitrogen and thiolate sulphur atoms. The NS Schiff bases formed complexes of general formula, [M(NS)2] or [M(NS)2.H2O] where M is BiIII or AgI, the expected geometry is octahedral for Bi(III) complexes while Ag(I) is expected to oxidized to Ag(II) forming square planner complexes.

1979 ◽  
Vol 34 (3) ◽  
pp. 459-463 ◽  
Author(s):  
B. P. Baranwal ◽  
G. K. Parashar ◽  
R. C. Mehrotra

AbstractA number of mono(carboxylato)mono(alkoxo)nickel(II) complexes of the general formula, Ni(OR)(OOCR′), (with R′ = C13H27, C15H35 and C17H35) have been synthesized (where R = Me and Pri) by the reactions of nickel methoxide and isopropoxide with the respective carboxylic acids in equimolar ratio and (where R = Et and But) by alcohol interchange reactions. A study of the molecular weight, infra-red and electronic reflectance spectra and magnetic susceptibility in addition to elemental analyses has been carried out to throw some light on the probable structure of these derivatives.


2013 ◽  
Vol 8 (1) ◽  
pp. 31-43 ◽  
Author(s):  
Fatima Esmadi ◽  
Omar F. Khabour ◽  
Ala' I. Albarqawi ◽  
Mohammad Ababneh ◽  
Mahmoud Al-Talib

2002 ◽  
Vol 32 (1) ◽  
pp. 171-187 ◽  
Author(s):  
Gurmit Singh ◽  
Ph. Ashutosh Singh ◽  
Ashok K. Sen ◽  
Kiran Singha ◽  
Surendra N. Dubeya ◽  
...  

2021 ◽  
Vol 33 (3) ◽  
pp. 617-621
Author(s):  
Meera Gopal ◽  
Sreesha Sasi

A new series of La(III) complexes of the ligand with the general formula [La(L)2(a)3] and [La2(L)4(aa)3], (a = nitrate (1), thiocyanate (2), acetate (3) and propionate (4) ions, aa = sulphate (5), thiosulphate (6), oxalate (7) and malonate (8) ions with the ligand 4-nitrosoantipyrine (L) were synthesized and characterized using various physico-chemical studies. The primary ligand L acts as a bidentate ligand utilizing the carbonyl group and the nitroso group for bonding. The nitrate, thiocyanate, acetate and propionate ions are monovalent unidentate ligands, whereas sulphate, thiosulphate, oxalate and malonate ions are divalent bidentate ligands in the complexes 1-8. Based on spectral data and magnetic susceptibility measurements, geometry of the lanthanum(III) complexes were also proposed.


2020 ◽  
Vol 32 (5) ◽  
pp. 1221-1229
Author(s):  
Satish Kumar ◽  
P.K. Santra ◽  
J. Dwivedi ◽  
R.C. Aryan

The present study reports the synthesis and characterization of novel molecules inhibiting the spread of hepatitis C. The molecules were designed as to block the NS3/4A protease enzyme on HCV RNA. The molecules were synthesized using usual peptide synthesis techniques. Compounds with purity more than 95% were characterized and docking studies were also performed. All the compounds were characterized using physico-chemical techniques such as determination of melting point by DSC and NMR, mass, IR spectral studies. The docking studies were also conducted to assess the activity of molecules for inhibition of hepatitis C virus.


2015 ◽  
Vol 121 (2) ◽  
pp. 909-917 ◽  
Author(s):  
Selma Bal ◽  
Betül Orhan ◽  
Joseph Donald Connolly ◽  
Metin Dığrak ◽  
Süleyman Köytepe

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