๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Note on the series of fully benzenoid hydrocarbons with a constant number of isomers

โœ Scribed by Sven J. Cyvin


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
321 KB
Volume
181
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

โœฆ Synopsis


There are series of C,H, formulae for fully benzenoid hydrocarbons which correspond to equal numbers of all-benzenoid isomers. These formulae are treated in general terms. Also, other classes of all-benzenoids are defined in relation to a periodic table for fully benzenoid hydrocarbons. Some new enumeration results of isomers are reported.


๐Ÿ“œ SIMILAR VOLUMES


Series of benzenoid hydrocarbons with a
โœ Sven J. Cyvin; Jon Brunvoll ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 283 KB

There are series of C&H, formulas for benzenoid hydrocarbons which correspond to equal numbers of isomers. General expressions (in two schemes) are reported for these formulas. The numbers of isomers for these constant-isomer series are treated by a combination of mathematical analysis and computer-

Note on the reconstruction of infinite g
โœ Thomas Andreae ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 169 KB ๐Ÿ‘ 1 views

For every positive integer c , we construct a pair G, , H, of infinite, nonisomorphic graphs both having exactly c components such that G, and H, are hypomorphic, i.e., G, and H, have the same families of vertex-deleted subgraphs. This solves a problem of Bondy and Hemminger. Furthermore, the pair G

Rate constants for the gas-phase reactio
โœ Roger Atkinson; Sara M. Aschmann ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 430 KB ๐Ÿ‘ 1 views

Using a relative rate method, rate constants have been determined at 296 5 2 K for the gas-phase reactions of the OH radical with toluene, the xylenes, and the trimethylbenzenes. Using the recommended literature rate constant for the reaction of OH radicals with propene of (2.66 2 0.40) x lo-" cm3 m