๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Quantitative reliability of aromaticity and related measurements on coals by 13C n.m.r. A debate

โœ Scribed by Colin E. Snape; David E. Axelson; Robert E. Botto; J.J. Delpuech; P. Tekely; Bernard C. Gerstein; Marek Pruski; Gary E. Maciel; Michael A. Wilson

Book ID
107756376
Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
261 KB
Volume
68
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

๐Ÿ“œ SIMILAR VOLUMES

Quantitative aspects of solid state 13C
Quantitative aspects of solid state 13C n.m.r. of coals and related materials
โœ Kenneth J. Packer; Robin K. Harris; Alan M. Kenwright; Colin E. Snape ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 480 KB

The quantitative aspects of cross-polarization (CP), which is used in conjunction with dipolar decoupling and magic-angle rotation to obtain high resolution 13C n.m.r. spectra of coals, have been studied using a bituminous coal (82 wt% C, dmmf basis) and asphaltenes from an extract of the same coal.

Distribution of aliphatic and aromatic c
Distribution of aliphatic and aromatic carbons in H-Coal liquids by quantitative 13C FT-n.m.r. spectroscopy
โœ Joseph T. Joseph; John L. Wong ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 578 KB

Three H-Coal liquids, ASO, ASB, and VSO, have been characterized by quantitative FT-n.m.r. spectroscopy. FT-parameters were chosen to allow determination of aromatic:aliphatic carbon ratios to within 1% and 2% error of the theoretical and the absolute number of aromatic and aliphatic carbons in a si

Aromaticity of coal extract by 1H and 13
Aromaticity of coal extract by 1H and 13C pulsed n.m.r. methods
โœ Tetsuro Yokono; Kunio Miyazawa; Yuzo Sanada ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 426 KB

High-resolution gated decoupling 13C spectra of soluble materials such as coal extracts have been analysed to evaluate the carbon aromaticity if,). A correlation was found between fa and the reciprocal of the square of the shorter component in spin-spin relaxation time (Tz), which was obtained by pu