Development and application of analytical techniques to chemistry of donor solvent liquefaction. Quarterly progress report, December 1977--February 1978. [/sup 19/F NMR reagents]

Technical Report · Mon May 01 00:00:00 EDT 1978

OSTI ID:6874906

Squires, A M; Dorn, H C; Taylor, L T; Dillard, J G; Rony, P R

Major effort during this period was concentrated upon the /sup 19/F NMR technique for characterizing the functional groups present in liquid coal products (solvent refined coal (SRC) fractions). Preliminary NMR examinations of the reaction products of various reagents with model compounds and SRC fractions indicated a number of limitations with these reagents, and criteria were derived for an ''ideal'' NMR reagent for general characterization of a wide range of different functional groups. New /sup 19/F NMR reagents were then examined (trifluoroacetyl chloride, trifluorodiazoethane) and the degree to which they met these criteria was determined. (7 figures) (DLC)

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg (USA)
• OSTI ID: 6874906
• Report Number(s): TID-28535
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
AZO COMPOUNDS
CHEMICAL ANALYSIS
CHEMICAL SHIFT
COAL LIQUIDS
FLUORINE 19
FLUORINE ISOTOPES
FUELS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
RESONANCE
SOLVENT-REFINED COAL
STABLE ISOTOPES