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NMR investigation of coal extracts

Journal Article:

Abstract

Proton NMR spectroscopy was used for the evaluation of 10% coal extract solutions in deuterated pyridine. Four types of Czechoslovak coal were analyzed. Agreement was found between the aromaticity of coal extracts calculated from /sup 1/H NMR data using Brown's method and Ladner's and Williams' method and the characterization of an average molecule of the coal extract by the number of non-bridge carbon atoms of aromatic rings, by the overall number of aromatic ring carbon atoms and the number of aromatic rings, determined by the Williams and Ferris methods. The methods for calculating carbon distribution from /sup 1/H NMR data, however, contain some constants theoretically estimated or experimentally found using the method which still remain to be verified.
Authors:
Lang, I; Sebor, G; [1]  Sebor, G Jr; Hajek, M; Mostecky, J [2] 
  1. Ceskoslovenska Akademie Ved, Prague. Hornicky Ustav
  2. Vysoka Skola Chemicko-Technologicka, Prague (Czechoslovakia)
Publication Date:
Jul 01, 1978
Product Type:
Journal Article
Reference Number:
AIX-10-462666; EDB-79-128473
Resource Relation:
Journal Name: Chem. Prum.; (Czechoslovakia); Journal Volume: 28:7
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; STRUCTURAL CHEMICAL ANALYSIS; AROMATICS; HYDROGEN 1; NUCLEAR MAGNETIC RESONANCE; CARBONACEOUS MATERIALS; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; RESONANCE; STABLE ISOTOPES; 010600* - Coal, Lignite, & Peat- Properties & Composition
OSTI ID:
5934330
Country of Origin:
Serbia and Montenegro
Language:
Czech
Other Identifying Numbers:
Journal ID: CODEN: CHPUA
Submitting Site:
INIS
Size:
Pages: 352-356
Announcement Date:
Jul 01, 1979

Journal Article:

Citation Formats

Lang, I, Sebor, G, Sebor, G Jr, Hajek, M, and Mostecky, J. NMR investigation of coal extracts. Serbia and Montenegro: N. p., 1978. Web.
Lang, I, Sebor, G, Sebor, G Jr, Hajek, M, & Mostecky, J. NMR investigation of coal extracts. Serbia and Montenegro.
Lang, I, Sebor, G, Sebor, G Jr, Hajek, M, and Mostecky, J. 1978. "NMR investigation of coal extracts." Serbia and Montenegro.
@misc{etde_5934330,
title = {NMR investigation of coal extracts}
author = {Lang, I, Sebor, G, Sebor, G Jr, Hajek, M, and Mostecky, J}
abstractNote = {Proton NMR spectroscopy was used for the evaluation of 10% coal extract solutions in deuterated pyridine. Four types of Czechoslovak coal were analyzed. Agreement was found between the aromaticity of coal extracts calculated from /sup 1/H NMR data using Brown's method and Ladner's and Williams' method and the characterization of an average molecule of the coal extract by the number of non-bridge carbon atoms of aromatic rings, by the overall number of aromatic ring carbon atoms and the number of aromatic rings, determined by the Williams and Ferris methods. The methods for calculating carbon distribution from /sup 1/H NMR data, however, contain some constants theoretically estimated or experimentally found using the method which still remain to be verified.}
journal = {Chem. Prum.; (Czechoslovakia)}
volume = {28:7}
journal type = {AC}
place = {Serbia and Montenegro}
year = {1978}
month = {Jul}
}