Abiotic Synthesis of Organic Compounds from Carbon Disulfide Under Hydrothermal Conditions

Details Abiotic Synthesis of Organic Compounds from Carbon Disulfide Under Hydrothermal Conditions Abiotic Synthesis of Organic Compounds from Carbon Disulfide Under Hydrothermal Conditions

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005asbio...5..749r&link_type=abstract

Astrobiology, Volume 5, Issue 6, pp. 749-769.

Other

4

Abiotic Synthesis, Carbon Disulfide, Hydrothermal Reactions, Organic Sulfur Compounds

Scientific paper

Abiotic formation of organic compounds under hydrothermal conditions is of interest to bio, geo-, and cosmochemists. Oceanic sulfur-rich hydrothermal systems have been proposed as settings for the abiotic synthesis of organic compounds. Carbon disulfide is a common component of magmatic and hot spring gases, and is present in marine and terrestrial hydrothermal systems. Thus, its reactivity should be considered as another carbon source in addition to carbon dioxide in reductive aqueous thermosynthesis. We have examined the formation of organic compounds in aqueous solutions of carbon disulfide and oxalic acid at 175°C for 5 and 72 h. The synthesis products from carbon disulfide in acidic aqueous solutions yielded a series of organic sulfur compounds. The major compounds after 5 h of reaction included dimethyl polysulfides (54.5%), methyl perthioacetate (27.6%), dimethyl trithiocarbonate (6.8%), trithianes (2.7%), hexathiepane (1.4%), trithiolanes (0.8%), and trithiacycloheptanes (0.3%). The main compounds after 72 h of reaction consisted of trithiacycloheptanes (39.4%), pentathiepane (11.6%), tetrathiocyclooctanes (11.5%), trithiolanes (10.6%), tetrathianes (4.4%), trithianes (1.2%), dimethyl trisulfide (1.1%), and numerous minor compounds. It is concluded that the abiotic formation of aliphatic straight-chain and cyclic polysulfides is possible under hydrothermal conditions and warrants further studies.

Affiliated with

Also associated with

No associations

Rating

Abiotic Synthesis of Organic Compounds from Carbon Disulfide Under Hydrothermal Conditions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Abiotic Synthesis of Organic Compounds from Carbon Disulfide Under Hydrothermal Conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abiotic Synthesis of Organic Compounds from Carbon Disulfide Under Hydrothermal Conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1032481