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Aliphatic Polyethers, Basic Building Blocks from Naturally Occurring Humic Substances: Detection by Solid State 13 C‐NMR Spectroscopy
Author(s) -
Bayer Ernst,
Albert Klaus,
Bergmann Wolf,
Jahns Kuno,
Eisener Wolfram,
Peters HansKonrad
Publication year - 1984
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198401472
Subject(s) - chemistry , nuclear magnetic resonance spectroscopy , solid state , spectroscopy , solid state nuclear magnetic resonance , oxygen , organic chemistry , oxygen atom , environmental chemistry , molecule , nuclear magnetic resonance , physics , quantum mechanics
The structure of humic substances has long been a subject of controversy. In particular, their higher oxygen content could not be explained. Studies in solution did little to help. CP‐MAS‐ 13 C‐NMR spectroscopy of the substances in the solid state has now permitted precise assignment of the structural elements. Aliphatic part‐structures comprise the framework of humic substances; of the oxygen‐containing groups, aliphatic ethers dominate.—These findings are also of importance in understanding the genesis of fossil fuels.