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Record Details

Record 9 of 1130
Carboxylic Acids as Indicators of Parent Body Conditions
Author and Affiliation:
Lerner N. R.(NASA Ames Research Center, Moffett Field, CA United States)
Chang, Sherwood [Technical Monitor]
Abstract: Alpha-hydroxy and alpha-amino carboxylic acids found on the Murchison meteorite are deuterium enriched. It is postulated that they arose from a common interstellar scurce: the reaction of carbonyl compounds in an aqueous mixture containing HCN and NH3. Carbonyl compounds react with HCN to form alpha-hydroxy nitriles, RR'CO + HCN right and left arrow RR'C(OH)CN. If ammonia is also present, the alpha-hydroxy nitriles will exist in equilibrium with the alpha-amino nitriles, RR'C(OH)CN + NH3 right and left arrow - RRCNH2CN + H2O. Both nitrites are hydrolyzed by water to form carboxylic acids: RR'C(OH)CN + H2O yields RR'C(OH)CO2H and RR'C(NH2)CN + H2O yields RR'C(NH2)CO2H.
Publication Date: Jan 01, 1995
Document ID:
20020039032
(Acquired Apr 12, 2002)
Subject Category: ASTROPHYSICS
Document Type: Preprint
Meeting Information: Meteoritical Society Meeting; 11-15 Sep. 1995; Washington, DC; United States
Meeting Sponsor: Meteorological Society; United States
Contract/Grant/Task Num: RTOP 152-13-60
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Organization Source: NASA Ames Research Center; Moffett Field, CA United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: AMINO ACIDS; CARBOXYLIC ACIDS; MURCHISON METEORITE; CARBONYL COMPOUNDS; WATER; NITRITES; NITRILES; HYDROCYANIC ACID; DEUTERIUM; AMMONIA
Availability Source: Other Sources
Availability Notes: Abstract Only
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