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Carbon Isotope Abundance in Meteoritic Carbonates
Science, 1963The C 13 /C 12 ratio in the carbonate minerals of Orgueil, a carbonaceous chondrite, is 6 percent greater than the ratio in any known terrestrial carbon. The effect may be produced by a chemical isotope fractionation involving processes not common on earth, or it may be the result of ...
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Deuterium Isotope Effect on Carbon Isotope Fractionation in Photosynthesis
Science, 1967Plants grown in D 2 O show a decreased tendency to fractionate carbon-13 during photosynthetic incorporation of carbon dioxide. The isotopic ratio C 13 /C 12 of the tissues of deuterated plants appears to be proportional to the deuterium content of the tissue.
R A, Uphaus, J J, Katz
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Carbon Isotopes and Microbial Sediments
2000Microbial sediments of the biolaminated type, generated by the matting behavior of preferentially prokaryotic microbenthos, commonly carry the isotopic signatures of both the primary microbial biomass and of the carbonate of the surrounding sediment matrix.
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Isomeres and isotopes of carbon
2020The nuclear geometry has been developed by analogy with the fullerene geometry. On the base of this geometric approach, the structure of carbon isomers and isotopes, which can be obtained by means of nuclear synthesis, has been designed. The mechanisms of possible nuclear reaction are discussed. Carbon is an unusual element.
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Modern Strategies for Carbon Isotope Exchange
Angewandte Chemie - International Edition, 2023Frédéric Taran +2 more
exaly
Photochemical Strategy for Carbon Isotope Exchange with CO 2
ACS Catalysis, 2021Frédéric Taran +2 more
exaly
1983
The 13C + 13C total fusion cross section has been determined in the range 3.26 ≤ Ec.m. ≤ 8.0 MeV using Ge(Li) detector measurements of low-lying transitions in the residual nuclei and a statistical model calculation of excited state populations. Six different residual nuclei have been observed and their production yields are given.
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The 13C + 13C total fusion cross section has been determined in the range 3.26 ≤ Ec.m. ≤ 8.0 MeV using Ge(Li) detector measurements of low-lying transitions in the residual nuclei and a statistical model calculation of excited state populations. Six different residual nuclei have been observed and their production yields are given.
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Late-Stage Carbon-14 Labeling and Isotope Exchange: Emerging Opportunities and Future Challenges
Jacs Au, 2022Frédéric Taran, Davide Audisio
exaly