✍ Scribed by J.W. Mcclure; S.D. Elegba; B. Hickman
No coin nor oath required. For personal study only.
Applying the theories for resistivity of the amorphous and granular materials, the temperature dependence of the electrical resistivity of coals, heat treated at different temperatures, has been successfully explained in terms of structural parameters obtained by X-ray measurements.
📜 SIMILAR VOLUMES
## Abstract Carbon‐13 chemical shifts of all twenty‐two dimethylcyclohexanols, formed by the hydrogenation of isomeric xylenols, have been measured and assigned. Conformational peculiarities of dimethylcyclohexanols are discussed on the basis of their carbon‐13 chemical shifts.
## Abstract The ^13^C NMR spectra of twelve isomeric 2‐and 4‐(E)‐stilbenyloxyalkylthiouracils have been calculated and fully assigned. The __A^i^__ and __A^i^K__ empirical parameters of 4‐ketopyrimidyl‐2‐thioalkoxy, 2‐ketopyrimidyl‐4‐thioalkoxy, 2‐(__E__) ‐stilbenyloxyalkyl, 2‐(__E__)‐stilbenyloxya
## Abstract The ^13^C NMR spectra of nine isomeric __E__‐hydroxyazastilbenes (__E__‐hydroxystyrylpyridines) have been fully assigned. The __Ai__ and __AiK__ empirical parameters of __o__‐(__m__ or __p__‐)hydroxystyryl and 2‐(3‐ or 4‐)vinylpyridyl groups for the prediction, of chemical shifts of sub
## Abstract ^13^C and ^1^H nuclear magnetic resonance (NMR) spectra have been obtained in order to identify the six nitration products of pyrene—1‐nitropyrene, 1,3‐dinitropyrene, 1,6‐dinitropyrene, 1,8‐dinitropyrene, 1,3,6‐trinitropyrene and 1,3,6,8‐tetranitropyrene. ^13^C chemical shifts in DMSO‐_