ChemInform Abstract: ELECTROCHEMISTRY OF POLYSULFIDE IONS IN DIMETHYLACETAMIDE. BASIC PROPERTIES AND OXIDATION IN ACID MEDIUM

1983 ◽  
Vol 14 (5) ◽  
Author(s):  
J. PARIS ◽  
V. PLICHON
Keyword(s):  
Acid Medium ◽  
Basic Properties ◽  
Polysulfide Ions

Indium(III) complexes of octaphenylporphyrazine: Effect of halide coordination on the basic properties and stability in acid media

2011 ◽  
Vol 15 (11n12) ◽  
pp. 1299-1309 ◽  
Author(s):  
Svetlana S. Ivanova ◽  
Pavel A. Stuzhin
Keyword(s):  
Acid Medium ◽  
Trifluoroacetic Acid ◽  
Catalytic Effect ◽  
Ionic Character ◽  
Free Base ◽  
Acid Media ◽  
Basic Properties ◽  
Phthalocyanine Complex ◽  
Anionic Species ◽  
Halide Complexes

Influence of halide ion coordination on the basic properties and stability of indium(III) octaphenylporphyrazine complexes in acid medium have been studied. Five-coordinated halide complexes [(Hal)InPAPh8] (Hal = F, Cl, Br) are stable in dichloromethane or chloroform solutions acidified with trifluoroacetic acid up to 100%. One of four meso-nitrogen atoms is protonated in 0.1 M solution; their basicity depending of the ionic character of In–Hal bond is decreased in the order F > Cl > Br . Addition of an excess of fluoride, chloride or bromide anions leads to formation of anionic cis-dihalide complexes cis [(Hal)2InPAPh8] - which undergo very facile demetalation with formation of the free-base H2PAPh8 even in a slightly acidified solutions (0.001 M of acid). Such catalytic effect of halide anions seems to be general for demetalation reactions of indium(III) complexes with tetrapyrrolic macrocycles and was also observed for the phthalocyanine complex [(Cl)InPc] . Coordination of iodide leads to reduction of porphyrazine macrocycle assisted by meso-protonation with formation of π-anionic species, which upon demetalation and subsequent deprotonation give a mixture of free-base porphyrazine H2PAPh8 and tetraazachlorin derivatives.

On the Essence and Tipology of International Public Goods

2005 ◽  
pp. 131-141
Author(s):  
V. Mortikov
Keyword(s):  
Economic Policy ◽  
Social Construction ◽  
Public Goods ◽  
Public Good ◽  
Global Public Goods ◽  
Club Goods ◽  
Basic Properties ◽  
International Public Goods ◽  
Regional Public Goods ◽  
Joint Products

The basic properties of international public goods are analyzed in the paper. Special attention is paid to the typology of international public goods: pure and impure, excludable and nonexcludable, club goods, regional public goods, joint products. The author argues that social construction of international public good depends on many factors, for example, government economic policy. Aggregation technologies in the supply of global public goods are examined.

The advancement of silicon-on-insulator (SOI) devices and their basic properties

2020 ◽  
Vol 23 (3) ◽  
pp. 227-252
Author(s):  
T.E. Rudenko ◽  
◽  
A.N. Nazarov ◽  
V.S. Lysenko ◽  
◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Basic Properties ◽  
Soi Devices

Basic Properties of an Ultrasonic Probe with a Through Hole for Puncture and Detection Principle of a Puncture Needle

2012 ◽  
Vol 132 (11) ◽  
pp. 420-424 ◽  
Author(s):  
Yuusuke Tanaka ◽  
Katsuhiko Tanaka ◽  
Susumu Sugiyama ◽  
Hisanori Shiomi ◽  
Yoshimasa Kurumi ◽  
...  
Keyword(s):  
Ultrasonic Probe ◽  
Basic Properties ◽  
Puncture Needle ◽  
Through Hole ◽  
Detection Principle
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