2.2.1.1 sigma-electronic carbon radicals

2005 ◽  
pp. 20-21
Author(s):  
H. Fischer
Keyword(s):  
Carbon Radicals

π-Conjugated Carbon Radicals at Graphene Oxide to Initiate Ultrastrong Chemiluminescence

2014 ◽  
Vol 53 (38) ◽  
pp. 10109-10113 ◽  
Author(s):  
Liang Yang ◽  
Ruilong Zhang ◽  
Bianhua Liu ◽  
Jianping Wang ◽  
Suhua Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Radicals

ChemInform Abstract: Free-Radical Carbonylation. Efficient Trapping of Carbon Monoxide by Carbon Radicals.

ChemInform ◽  
1990 ◽  
Vol 21 (19) ◽  
Author(s):  
I. RYU ◽  
K. KUSANO ◽  
A. OGAWA ◽  
N. KAMBE ◽  
N. SONODA
Keyword(s):  
Carbon Monoxide ◽  
Free Radical ◽  
Carbon Radicals

scholarly journals Influence of Organic Ammonium Derivatives on the Equilibria Between of NH4+, NO2- and NO3- Ions in River Waters

2021 ◽  
Author(s):  
Petru Spataru
Keyword(s):  
River Water ◽  
Nitrogen Concentration ◽  
Inhibitory Effect ◽  
Ammonium Nitrogen ◽  
Ammonium Ion ◽  
Organic Radical ◽  
Stress Effect ◽  
River Waters ◽  
Carbon Radicals ◽  
Organic Amines

Abstract The braking effect of the ammonium derivatives on the natural aquatic environment varies dramatically with the number and nature of organic radical substitutions at nitrogen atom, particularly with their structure, composition and genesis. The most common discrepancy in their toxic effect are showing the natural and synthetic amines. For instance, the values of the maximum allowable concentration (MAC) of the derivatives of the natural origin for drinking water exceed the MAC of the synthetic ones by two orders. On the other hand, it has been found out that 1- naphtylamine (1-NA) inhibitory effect is associated to its toxicity. The Diethylamine (DEA) braking impact on the nitrification process is effectively lower than that of the toxicity. Our experiments show that the carbon-radicals of organic amines act as reducing agents. It is found that DEA decomposition leads to a high NH4+ ions (approx. 3.8 mg/L ammonium nitrogen) concentration in river water samples. By laboratory simulations two types of fixations by microbial organisms have been established: 1) absorption-desorption, the hydromicrobiotic reaction to ammonium (HMBRA) at the instantaneous increase of the concentration of ammonium ion in the river water (so-called shock/stress effect); 2) nitrogen fixation stimulated by a certain concentration (0.05mg/L) of a 1-NA and other amines.

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