NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Chemical evolution. XL - Clay-mediated oxidation of diaminomaleonitrileThe inhibition of the oligomerization of HCN by montmorillonite clays is shown to be caused by oxidation of diaminomaleonitrile (DAMN) by ferric ion in the clay lattice, with ferrous ion and oxalic acid the reaction products. It is demonstrated that diiminosuccinonitrile is the initial reaction product and is rapidly hydrolized to oxalic acid and HCN. The same oxidative transformations are effected by ferric ion bound to Dowex 50, ferric ion in solution, and Ni(NH3)6(2+). The rate of reaction of DAMN indicates no catalytic role for the clay in the oxidation of DAMN, and little reaction of the latter was observed with montmorillonite in which the bulk of the iron was in the divalent state. The possible significance of these redox reactions to chemical evolution is discussed.
Document ID
19820057661
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ferris, J. P.
(Rensselaer Polytechnic Inst. Troy, NY, United States)
Hagan, W. J., Jr.
(Rensselaer Polytechnic Inst. Troy, NY, United States)
Alwis, K. W.
(Rensselaer Polytechnic Inst. Troy, NY, United States)
Mccrea, J.
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1982
Publication Information
Publication: Journal of Molecular Evolution
Volume: 18
Subject Category
Space Biology
Accession Number
82A41196
Funding Number(s)
CONTRACT_GRANT: NSF 79-24364
CONTRACT_GRANT: NGR-30-018-148
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available