Toxicity of Fatty Acid Autoxidation Products : Highest Anti-Microbial Toxicity in the Initial Oxidative Phase

Peer reviewe

Adduct formed by chromium trioxide and zwitterionic quinolinic acid

Chromium trioxide forms an adduct with zwitterionic quinolinic acid. The structure of the product was found to be (quinolinium-3- carboxylato-O)trioxidochromium(VI), determined by single-crystal X-ray diffraction methods. To evaluate the bonding properties of the compound, its structure was optimized at the B3LYP/6-311G* level of theory. The electronic characteristics were investigated by topological methods applied to the total charge density in various model compounds including the title compound, title compound with a HF molecule presenting a hydrogen bonding and anionic moiety. Calculated aromaticity indices indicate that the quinolinic rings tend to conserve their degree of aromaticity against hydrogen bonding. However, when there is hydrogen bonding involving an N-H bond or when the quinolinium zwitterion is deprotonated, there are clear changes in the interaction between chromium trioxide and the quinolinic moiety

Toivon historia : Toivo Nygårdille omistettu juhlakirja

Jyväskylän yliopiston Suomen historian professori Toivo Nygård saavuttaa erään merkkipylvään 17.3.2003, jolloin hän täyttää 60 vuotta. Juhlapäivän kunniaksi ovat hänen työtoverinsa, oppilaansa ja ystävänsä laatineet teoksen, jonka artikkeleissa valotetaan Toivo Nygårdin tutkijaprofiilia. Tehtävä ei ole helppo monien aikakausien ja erilaisten teemojen tuntijan ollessa kyseessä. Toivottavasti myös artikkeleista välittyy se optimismi, "toivon historia", joka on ominaista Toivo Nygårdin omille tutkimuksille