Development of instrumental techniques for coal surface analysis: Functional group analysis in coal by /sup 31/P NMR spectroscopy: Quarterly report, January 1, 1988--March 31, 1988

Technical Report · Sun May 01 04:00:00 EDT 1988

OSTI ID:6641340

Verkade, J G

Five phosphorus-containing compounds, desirable as potential reagents for derivatizing labile hydrogen functional groups in coal, on coal surfaces, and in coal-derived materials have been synthesized. These compounds include 2-chloro-1,3-dioxaphospholane (1), 2-chloro-4,4,5,5-tetramethyl-1-1,3-dioxaphospholane (2), 2-chloro-4,4,5,5-tetramethyl-1,3-dioxaphospholane (3), 2-chloro-3-methyl-4-methyl-5-phenyl-1-oxa-3-azaphospholane (4), and 2-chloro-1,3-dithiaphospholane (5). Reagents 1 through 5 have been tested on numerous model compounds including phenols, alcohols, carboxylic acids, amines and thiols to produce /sup 31/P nmr spectra useful for identification and eventual possible quantitation. Reagent 5 has been found to greatly exceed our expectations for resolving the individual /sup 31/P absorption peaks and for separating the peak ranges for the various classes of derivatized model compounds. 7 refs., 1 fig., 1 tab.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6641340
• Report Number(s): IS-4964; ON: DE89003760
• 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
400201 -- Chemical & Physicochemical Properties
ALCOHOLS
AMINES
AROMATICS
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMICAL SHIFT
CHLORINE COMPOUNDS
COAL
DERIVATIZATION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENOLS
PHOSPHORUS 31
PHOSPHORUS COMPOUNDS
PHOSPHORUS ISOTOPES
PROGRESS REPORT
RESONANCE
SCREENING
SPECTRA
STABLE ISOTOPES
THIOLS