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Estimation of average structural parameters of petroleum crudes and coal-derived liquids by 13C and 1H n.m.r.

✍ Scribed by Pyase L. Gupta; Prem V. Dogra; Rakesh K. Kuchhal; Pradeep Kumar


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
431 KB
Volume
65
Category
Article
ISSN
0016-2361

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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