Thermodynamic and structural features of chloro-complex formation of bivalent transition metals in dimethylsulfoxide

1988 ◽  
Vol 17 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Wŀodzimierz Libuś ◽  
Roman Pastewski
Keyword(s):  
Complex Formation ◽  
Transition Metals ◽  
Structural Features ◽  
Chloro Complex ◽  
Bivalent Transition Metals

scholarly journals Half- and mixed-sandwich metallacarboranes for potential applications in medicine

2019 ◽  
Vol 91 (4) ◽  
pp. 563-573 ◽  
Author(s):  
Marta Gozzi ◽  
Benedikt Schwarze ◽  
Evamarie Hey-Hawkins
Keyword(s):  
Organic Chemistry ◽  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Structural Features ◽  
Biological Stability ◽  
Potential Applications ◽  
Sandwich Type ◽  
Isolobal Analogy

Abstract Today, medicinal chemistry is still clearly dominated by organic chemistry, and commercially available boron-based drugs are rare. In contrast to hydrocarbons, boranes prefer the formation of polyhedral clusters via delocalized 3c2e bonds, such as polyhedral dicarba-closo-dodecaborane(12) (closo-C2B10H12). These clusters have remarkable biological stability, and the three isomers, 1,2- (ortho), 1,7- (meta), and 1,12-dicarba-closo-dodecaborane(12) (para), have attracted much interest due to their unique structural features. Furthermore, anionic nido clusters ([7,8-C2B9H11]2−), derived from the neutral icosahedral closo cluster 1,2-dicarba-closo-dodecaborane(12) by deboronation followed by deprotonation are suitable ligands for transition metals and offer the possibility to form metallacarboranes, for example via coordination through the upper pentagonal face of the cluster. The isolobal analogy between the cyclopentadienyl(–1) ligand (Cp−) and [C2B9H11]2− clusters (dicarbollide anion, Cb2−) is the motivation in using Cb2− as ligand for coordination to a metal center to design compounds for various applications. This review focuses on potential applications of half- and mixed-sandwich-type transition metal complexes in medicine.

The kinetics of complex formation of some transition metals with quercetin and morin

1976 ◽  
Vol 25 (4) ◽  
pp. 885-886
Author(s):  
Yu. A. Makashev ◽  
B. P. Sharonov ◽  
S. A. Grachev ◽  
V. E. Mironov ◽  
N. E. Makasheva
Keyword(s):  
Complex Formation ◽  
Transition Metals ◽  
Kinetics Of
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