Formation of Hexamethylenetetramine (HMT) from HCHO and NH3--Relevance to Prebiotic Chemistry and B3LYP Consideration.
Orig Life Evol Biosph
; 46(2-3): 223-31, 2016 Jun.
Article
em En
| MEDLINE
| ID: mdl-26680445
ABSTRACT
Despite its importance in the prebiotic and biochemical fields, a complete theoretical study of the formation of hexamethylenetetramine (HMT) starting from its precursors ammonia and formaldehyde has not received due considerations in the literature with regard to the thermodynamic feasibility of many of the mechanistically proposed intermediates in its formation. Most of the studies in this area have been mostly concerned with the initial steps of the reaction between formaldehyde and ammonia, while poor attention is dedicated to successive steps. In this article, different results from published literature were critically considered and the most probable hypothesis regarding the mechanism of HMT formation is discussed on the basis of B3LYP calculations of free energies.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Origem da Vida
/
Formaldeído
/
Amônia
/
Metenamina
Idioma:
En
Revista:
Orig Life Evol Biosph
Assunto da revista:
BIOLOGIA
/
BIOLOGIA MOLECULAR
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Itália