1, 9-Dihydro-purine-6-thione Derivatives of the d8-d10 Metal Ions (PdII, PtII, and CuI): Synthesis, Spectroscopy, and Structures

Author(s):  
Tarlok S. Lobana ◽  
Parminderjit Kaur ◽  
Geeta Hundal ◽  
Ray J. Butcher ◽  
Chen W. Liu
Keyword(s):  
2008 ◽  
Vol 634 (4) ◽  
pp. 718-723 ◽  
Author(s):  
Tarlok S. Lobana ◽  
Renu Sharma ◽  
Rekha Sharma ◽  
Razia Sultana ◽  
R. J. Butcher

Polyhedron ◽  
2015 ◽  
Vol 87 ◽  
pp. 17-27 ◽  
Author(s):  
Tarlok S. Lobana ◽  
Amanpreet K. Sandhu ◽  
Amanpreet K. Jassal ◽  
Geeta Hundal ◽  
R.K. Mahajan ◽  
...  

2006 ◽  
Vol 19 (6) ◽  
pp. 506-510 ◽  
Author(s):  
Guo-tao Wen ◽  
Man-zhou Zhu ◽  
Zhuo Wang ◽  
Xiang-ming Meng ◽  
Hui-yuan Hu ◽  
...  

2019 ◽  
Vol 28 (3) ◽  
pp. 1523-1534 ◽  
Author(s):  
Fadi Alakhras ◽  
Hanin Al-Shahrani ◽  
Eman Al-Abbad ◽  
Fuad Al-Rimawi ◽  
Noureddine Ouerfelli

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3941 ◽  
Author(s):  
Ozsváth ◽  
Bíró ◽  
Nagy ◽  
Buglyó ◽  
Sanna ◽  
...  

By using various techniques (pH-potentiometry, UV-Visible spectrophotometry, 1H and 17O-NMR, EPR, ESI-MS), first time in the literature, solution equilibrium study has been performed on complexes of dipeptide and tripeptide hydroxamic acids—AlaAlaNHOH, AlaAlaN(Me)OH, AlaGlyGlyNHOH, and AlaGlyGlyN(Me)OH—with 4d metals: the essential Mo(VI) and two half-sandwich type cations, [(η6-p-cym)Ru(H2O)3]2+ as well as [(η5-Cp*)Rh(H2O)3]2+, the latter two having potential importance in cancer therapy. The tripeptide derivatives have also been studied with some biologically important 3d metals, such as Fe(III), Ni(II), Cu(II), and Zn(II), in order to compare these new results with the corresponding previously obtained ones on dipeptide hydroxamic acids. Based on the outcomes, the effects of the type of metal ions, the coordination number, the number and types of donor atoms, and their relative positions to each other on the complexation have been evaluated in the present work. We hope that these collected results might be used when a new peptide-based hydroxamic acid molecule is planned with some purpose, e.g. to develop a potential metalloenzyme inhibitor.


2019 ◽  
Vol 488 ◽  
pp. 269-277
Author(s):  
Sangeeta Yadav ◽  
Rajesh Deka ◽  
Saravanan Raju ◽  
Harkesh B. Singh
Keyword(s):  

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4681
Author(s):  
Nikolay I. Gorshkov ◽  
Andrey Yu. Murko ◽  
Irina I. Gavrilova ◽  
Marina A. Bezrukova ◽  
Albert I. Kipper ◽  
...  

Dithiocarbamate (DTC) derivatives of N-vinylpyrrolidone-N-vinylamine (VP–VA) copolymers were synthesized via reaction between the copolymers and carbon disulfide in alkaline medium; molecular masses of the products were 12 and 29 kDa; the VP:VDTC ratios were 94:6 and 83:17 mol.%. Complexation between the obtained DTC derivatives and metal ions (indium and gallium) was investigated. It was demonstrated that metal–DTC ligand complexes with 1:3 ratio between components were formed. Gallium metal–polymer complexes (MPC) were unstable in solution. Individual indium MPC were isolated and characterized by spectral and chromatographic methods. Unlike similar gallium MPC, they appeared to be stable in histidine challenge reaction.


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