Results 261 to 270 of about 5,644,306 (315)

Carbon 13 in Plants and the Relationships between Carbon 13 and Carbon 14 Variations in Nature

The Journal of Geology, 1954
In considering variations in the radiocarbon content of natural material, it is important to distinguish between processes of fractionation and of dilution; thus the accumulated data on C13 variations can be useful if correctly interpreted. In this paper the mechanism of the isotopic fractionation in plants is discussed, in an attempt to evaluate the ...
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Carbon-13-carbon-13 and carbon-13-hydrogen coupling constants in 2,2,4,4-tetramethylbicyclo[1.1.0]butane

Journal of the American Chemical Society, 1978
Horst Finkelmeier, Wolfgang Luettke
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Permafrost carbon emissions in a changing Arctic

Nature Reviews Earth & Environment, 2022
Kimberley R Miner, Merritt R Turetsky, Edward Malina   +2 more
exaly  

Carbon and nitrogen cycling on the Qinghai–Tibetan Plateau

Nature Reviews Earth & Environment, 2022
Huai Chen, Xingliang Xu, Yongheng Gao
exaly  

Carbon-13-carbon-13 coupling constants in bicyclic hydrocarbons

Journal of the American Chemical Society, 1982
Ernest W. Della, Paul E. Pigou
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Geminal and vicinal carbon-13-carbon-13 coupling constants of 85% carbon-13-enriched amino acids

Journal of the American Chemical Society, 1975
null Tran-Dinh Son, S. Fermandjian, E. Sala, R. Mermet-Bouvier, P. Fromageot   +4 more
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Carbon scrambling and carbon-13-carbon-13 coupling constants in carbon-13 NMR spectra of 2-norbornyl chloride

Journal of the American Chemical Society, 1987
Ronald M. Jarret, Martin Saunders
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Carbon-13 NMR

2023
Tamanna Yakub, Bhawana Jain, Anupama Asthana, Ajaya K. Singh, Md. Abu Bin Hasan Susan   +4 more
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Conformational and substituent dependencies of carbon-13-carbon-13 coupling constants

Journal of the American Chemical Society, 1975
Michael Barfield, Ivor Burfitt, David Doddrell   +2 more
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ChemInform Abstract: CARBON‐13‐CARBON‐13 AND CARBON‐13‐HYDROGEN COUPLING CONSTANTS IN 2,2,4,4‐TETRAMETHYLBICYCLO(1.1.0)BUTANE

Chemischer Informationsdienst, 1978
H. FINKELMEIER, W. LUETTKE
openaire   +1 more source