Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Sonia M. Horvat"'
Publikováno v:
International Journal of Chemical Kinetics. 44:51-58
Ab initio and density functional calculations predict that intramolecular homolytic substitution reactions of oxyacyl radicals at the selenium atom in ω-alkylseleno-substituted radicals proceed via mechanisms that do not involve hypervalent intermed
Autor:
Carl H. Schiesser, Sonia M. Horvat
Publikováno v:
Organometallics. 28:3311-3318
Ab initio calculations using the 6-311G(d,p), cc-pVDZ, aug-cc-pVDZ, and (valence) double-ζ pseudopotential (DZP) basis sets, with (MP2, ROMP2, QCISD, CCSD(T)) and without (HF) the inclusion of electron correlation, and density functional (BHandHLYP)
Autor:
Sonia M. Horvat, Carl H. Schiesser
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :939-945
Ab initio molecular orbital calculations using a (valence) double-ζ pseudopotential basis set (DZP) with (MP2, QCISD) and without (SCF) the inclusion of electron correlation predict that the transition states (5, 7) involved in homolytic (1,2)-trans
Publikováno v:
Organometallics. 19:1239-1246
Ab initio calculations using the 6-311G**, cc-pVDZ, aug-cc-pVDZ, and (valence) double-ζ pseudopotential (DZP) basis sets, with (MP2, QCISD, CCSD(T)) and without (UHF) the inclusion of electron corr...
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :2151-2154
The trimethylstannyl substituent raises the migratory aptitude of a primary β-carbon to be above that of a not otherwise activated secondary or tertiary carbon. This is apparent from the exclusive formation of the alkene acids 9–11 from Baeyer–V
Publikováno v:
Organic letters. 15(14)
Generation of the 5-(2'-deoxyuridinyl)methyl radical (6) was reexamined. Trapping by 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl confirms that 6 is generated. However, trapping by methoxyamine reveals that the respective carbocation (10) is also pr
Autor:
Sara H. Kyne, Ching Yeh Lin, Carl H. Schiesser, Heather M. Aitken, Sonia M. Horvat, Michelle L. Coote
Publikováno v:
ChemInform. 43
There was a time when free radicals were scorned by organic chemists and when “practically every organic text book written” contained a statement that free radicals were “incapable of an independent existence”.
Publikováno v:
Organicbiomolecular chemistry. 1(7)
Ab initio calculations using 6-311G**, cc-pVDZ, aug-cc-pVDZ, and a (valence) double-zeta pseudopotential (DZP) basis sets, with (MP2, QCISD, CCSD(T)) and without (UHF) the inclusion of electron correlation, and density functional (B3LYO) calculations
Publikováno v:
Chemical communications (Cambridge, England). (10)
Reaction of the optically active silanes, ((Ssi)-(-)-6), formed by treatment of racemic 2-methylenecycloheptanone oxide with LDA followed by (R)-(+)-chloromethyl(1-naphthyl)-phenylsilane, with tributyltin hydride under standard radical conditions aff
Autor:
Sonia M. Horvat, Carl H. Schiesser
Publikováno v:
New Journal of Chemistry. 38:2595
Homolytic substitution reactions of methoxycarbonyl radicals at the silicon, germanium, and tin atoms in various dialkylsilanes, dialkylgermanes and dialkylstannanes have been investigated using computational techniques. Ab initio and DFT calculation