Novel application of /sup 31/P NMR spectroscopy to the analysis of organic groups containing -OH, -NH and -SH functionalities in coal extracts and condensates

Conference · Fri Jan 01 04:00:00 EST 1988 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:5974805

Wroblewski, A E; Markuszewski, R; Verkade, J G

Over one hundred model organic compound including phenols, aliphatic alcohols, aromatic acids, aliphatic acids, amines, and thiols have been derivatized with two members of a phospholane series of phosphorus-containing reagents, namely, ClPOCH/sub 2/CH/sub 2/O and ClPOCHMe/sub 2/CMe/sub 2/O. Measurement of proton-decoupled /sup 31/P chemical shifts of these derivatives reveals that, in general, the resonances fall into well-separated regions for derivatized classes of these organic compounds. Both phosphorus reagents were also tested on pyridine extracts of Illinois No. 6 coal, revealing the presence of various phenols, carboxylic acids, and aliphatic alcohols. Similar derivatization of a low-temperature pyrolysis condensate from Illinois No. 6 coal showed no detectable concentrations of carboxylic acids, a relatively small amount of aliphatic alcohols, but considerable quantities of a variety of phenols. The current scope and limitations of this NMR technique and its applicability to the quantitation of -OH, -SH, and -NH functionalities in organic solutions of coal-derived materials are discussed.

• Research Organization: Iowa State Univ., Ames (USA)
• OSTI ID: 5974805
• Report Number(s): CONF-870802-
• Conference Information: Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 32:3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ALCOHOLS
AMINES
AROMATICS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COAL EXTRACTS
COAL LIQUIDS
CONDENSATES
DATA
DERIVATIZATION
EXPERIMENTAL DATA
FLUIDS
HYDROXY COMPOUNDS
INFORMATION
ISOTOPES
LIGHT NUCLEI
LIQUIDS
MAGNETIC RESONANCE
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENOLS
PHOSPHORUS 31
PHOSPHORUS COMPOUNDS
PHOSPHORUS ISOTOPES
QUALITATIVE CHEMICAL ANALYSIS
RESONANCE
SPECTRA
STABLE ISOTOPES
THIOLS