Studies Of Rhenium Based Clusters Containing Nitriles And Heterocyclic Ligands

2014 ◽  
Author(s):  
YiXin Ren
Keyword(s):  
Heterocyclic Ligands

Synthesis and anticancer property of three new Cu(II) coordination polymers constructed by the bifunctional substituted-polynitrogen heterocyclic ligands

2021 ◽  
Vol 522 ◽  
pp. 120380
Author(s):  
Ao-Lin Zhang ◽  
Xin-Chen Li ◽  
Juan Min ◽  
Li-Tao Tan ◽  
Hong-Liang Xu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Heterocyclic Ligands

Dynamic processes in hydrido-carbonyl trirhenium clusters containing bridging nitrogen heterocyclic ligands: An NMR investigation

2011 ◽  
Vol 696 (23) ◽  
pp. 3792-3799 ◽  
Author(s):  
Daniela Maggioni ◽  
Monica Panigati ◽  
Tiziana Beringhelli ◽  
Giuseppe D’Alfonso
Keyword(s):  
Dynamic Processes ◽  
Heterocyclic Ligands ◽  
Nitrogen Heterocyclic

Iridium(iii) complexes with five-membered heterocyclic ligands for combined photodynamic therapy and photoactivated chemotherapy

2017 ◽  
Vol 46 (39) ◽  
pp. 13482-13491 ◽  
Author(s):  
Na Wu ◽  
Jian-Jun Cao ◽  
Xiao-Wen Wu ◽  
Cai-Ping Tan ◽  
Liang-Nian Ji ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Chemotherapeutic Agents ◽  
Heterocyclic Ligands

In this work, three iridium(iii) complexes were investigated as combined photodynamic and photoactivated chemotherapeutic agents.

Metal ion – biomolecule interactions. X. Synthesis, spectroscopic and magnetic resonance investigations of methylmercury(II) complexes of the sulfur modified nucleosides 6- mercaptopurine riboside and 2-amino-6-mercaptopurine riboside

1986 ◽  
Vol 64 (3) ◽  
pp. 442-448 ◽  
Author(s):  
E. Buncel ◽  
R. Kumar ◽  
A. R. Norris
Keyword(s):  
Aqueous Solution ◽  
Metal Ion ◽  
Chemotherapeutic Agents ◽  
Modified Nucleosides ◽  
Coupling Constants ◽  
Heterocyclic Ligands ◽  
Methylmercury Poisoning ◽  
Insight Into ◽  
C Nmr ◽  
Ligand Bond

A number of methylmercurated complexes of 6-mercaptopurine riboside and 2-amino-6-mercaptopurine riboside (6-MNucH2) containing S-bound CH3Hg(II) in neutral and cationic complexes (as in [CH3Hg(6-MNucH)] and [CH3Hg(6-MNucH2)]NO3), S- and N-bound CH3Hg(II) (as in [(CH3Hg)2(6-MNucH)]NO3), and S-, N-, C-bound CH3Hg(II) (as in [(CH3Hg)3(6-MNuc)]NO3) have been prepared in aqueous solution at appropriate pH and mole ratios of the constituents. The complexes were characterized by means of 1H and 13C nmr and ir spectroscopy and elemental analysis. Formation of C-bound methylmercurated species extends our previous results obtained with xanthosine, inosine, and imidazole derivatives, and substantiates our proposal that activation through electrophilic coordination at N(7) is a requirement for C(8)—H abstraction. 2J(1H–199Hg) coupling constants, measured in (CD3)2SO for a number of CH3Hg(II) complexes of N-, S-, and C-donor heterocyclic ligands, including the 6-mercaptopurine riboside of the present study, correlate well with the 1J(13C–199Hg) coupling constants, according to 1J = 8.4602J − 155.6. The significance of this correlation in terms of the strength of the Hg–ligand bond is considered. The results could provide insight into the apparent selectivity of binding of CH3Hg(II) by bio-ligands, as well as in the design of chemotherapeutic agents for the treatment of methylmercury poisoning.

Sign in / Sign up

Export Citation Format

Share Document