Solvation and molecular distortion effects in the thermochemistry of protonation of tetraphenylporphine derivatives

Authors
Berezin, DB Semeikin, AS Andrianov, VG Berezin, MB
Citation
Db. Berezin et al., Solvation and molecular distortion effects in the thermochemistry of protonation of tetraphenylporphine derivatives, RUSS J G CH, 70(9), 2000, pp. 1453-1457
Citations number
24
Categorie Soggetti
Chemistry
Journal title
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
ISSN journal
10703632 → ACNP
Volume
70
Issue
9
Year of publication
2000
Pages
1453 - 1457
Database
ISI
SICI code
1070-3632(200009)70:9<1453:SAMDEI>2.0.ZU;2-7
Abstract
The euthalpies of solution (298.15 K) of tetraphenylporphine and its N-meth yl derivative in chloroform and chloroform-trichloroacetic acid were determ ined. In acidic medium, unlike neutral, the enthalpy of solution DeltaH(sol ) depends on porphyrin concentration. Factors controlling the standard enth alpies of solution of the porphyrins in acidic medium were discussed. An im portant role specific solvation plays in the energy of solution of the porp hyrins was noted.