Abstract

Indirect studies in the structure of coal and related carbonaceous materials are made through spectral studies of chars of model compounds. Temperature effects are demonstrated; the higher the temperature, or the longer the pyrolysis time, the higher the rank of coal that the char spectrum resembles. Charring of model compounds with and without oxygen present permits the assignment of some infrared bands of chars to oxygenated structures. Chars prepared from isotope-labeled compounds also permit the assignment of spectral bands through observation of isotopic shifts.

© 1963 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Infrared Spectra of Coal and Carbohydrate Chars

R. A. Friedel and M. G. Pelipetz
J. Opt. Soc. Am. 43(11) 1051-1052 (1953)

Coblentz’ Contribution to Infrared Spectroscopy

R. Norman Jones
Appl. Opt. 2(11) 1090-1097 (1963)

The Observation of Extraphotographic Infrared Atomic Emission Spectra

Curtis J. Humphreys and Edward Paul
Appl. Opt. 2(7) 691-698 (1963)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription