Valence vibration frequencies, E?C, in organic compounds containing elements of the IVth group (E=Si, Ge, Sn)

1964 ◽  
Vol 5 (1) ◽  
pp. 51-54 ◽  
Author(s):  
I. V. Obreitov ◽  
N. A. Chutaevskii
Keyword(s):  
Organic Compounds ◽  
Valence Vibration ◽  
Vibration Frequencies

The Tempo and mode(S) of Prebiotic Evolution

1997 ◽  
Vol 161 ◽  
pp. 419-429 ◽  
Author(s):  
Antonio Lazcano
Keyword(s):  
Origin Of Life ◽  
Organic Compounds ◽  
Biological Evolution ◽  
Current Evidence ◽  
Early Diversification ◽  
Time Period ◽  
The Galaxy ◽  
History Of ◽  
Widespread Phenomenon ◽  
The Origin Of Life

AbstractDifferent current ideas on the origin of life are critically examined. Comparison of the now fashionable FeS/H2S pyrite-based autotrophic theory of the origin of life with the heterotrophic viewpoint suggest that the later is still the most fertile explanation for the emergence of life. However, the theory of chemical evolution and heterotrophic origins of life requires major updating, which should include the abandonment of the idea that the appearance of life was a slow process involving billions of years. Stability of organic compounds and the genetics of bacteria suggest that the origin and early diversification of life took place in a time period of the order of 10 million years. Current evidence suggest that the abiotic synthesis of organic compounds may be a widespread phenomenon in the Galaxy and may have a deterministic nature. However, the history of the biosphere does not exhibits any obvious trend towards greater complexity or «higher» forms of life. Therefore, the role of contingency in biological evolution should not be understimated in the discussions of the possibilities of life in the Universe.

Organic Compounds C8 to C28

1995 ◽  
Keyword(s):  
Organic Compounds

Environmental Effects on Molecular Propcrtics of Organic Compounds. Part II. β-Cyclodextrin Inclusion Complexes with Cieinamic Acids

1988 ◽  
Vol 156 (1) ◽  
pp. 405-411
Author(s):  
E. Hadljoudis ◽  
I. Mouatakali-maridis ◽  
G. Tsoucaris ◽  
F. Villain ◽  
G. Le Bas
Keyword(s):  
Organic Compounds ◽  
Inclusion Complexes ◽  
Environmental Effects ◽  
Cyclodextrin Inclusion Complexes ◽  
Cyclodextrin Inclusion

Microbe; Removal of Hazardous Organic Compounds

1982 ◽  
Vol 16 (3) ◽  
pp. 170-183 ◽  
Keyword(s):  
Organic Compounds ◽  
Hazardous Organic Compounds
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