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Hypothetical average structures of two coal liquid asphaltenes from solid state 13 C nuclear magnetic resonance and 1 H nuclear magnetic resonance data

✍ Scribed by Victoria A. Weinberg; T.F. Yen; P.DuBois Murphy; B.C. Gerstein

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
479 KB
Volume
21
Category
Article
ISSN
0008-6223

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✦ Synopsis

The hypothetical average structures of two coal liquid asphaltenes were determined using solid state 13 C NMR and 1 H NMR data. From the 1 H NMR data average molecular structural parameters were obtained using the Brown-Ladner method to get a general average structure. From the solid state 13 C NMR data, estimations of percentages of tertiary and quaternary aromatic carbons and secondary/tertiary and primary/quaternary aliphatic carbons were made. The hypothetical average molecules obtained agreed closely with experimental results.

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