- Ohta, Brian K. “The Symmetry of Halonium Ions” Gordon
Research Conference on Isotopes in Biological & Chemical Sciences
in Galveston, Texas, in February 2010. (invited by John P. Richard)
- Ohta, Brian K. “The Symmetry of Halonium Ions” 12th
Kyushu International Symposium on Physical Organic Chemistry in
Fukuoka, Japan, in December 2009. (invited by Shinji Kobayashi)
- Ohta, Brian K. “The Symmetry of Halonium Ions” 19th
IUPAC Conference on Physical Organic Chemistry, Santiago de Compostela,
Spain, Summer 2008.
- Scupp, Thomas M.; Dudley, Timothy J.; Ohta, Brian K.
“Activation of Weakly Nucleophilic Solvents by Halonium Ions,”
Abstract submitted to the National Meeting of the American Chemical
Society, New Orleans, LA, Spring 2008.
- Aran-Terol, Pablo; Ohta, Brian K. “The Structure of
Tetramethylethylene Iodonium Ion,” Abstract submitted to the National
Meeting of the American Chemical Society, New Orleans, LA, Spring 2008.
- Scupp, Thomas M.; Dudley, Timothy J.; Ohta, Brian K.
“Activation of Weakly Nucleophilic Solvents by Halonium Ions.”
Villanova Undergraduate Summer Research Poster Session, Villanova, PA,
Fall 2007.
- Aran-Terol, Pablo; Ohta, Brian K. “The Structure of
Tetramethylethylene Iodonium Ion.” Villanova Undergraduate Summer
Research Poster Session, Villanova, PA, Fall 2007.
- Ohta, Brian K. “Structural implications of the absence of
equilibrium isotope shifts in aziridinium imide.” 233rd ACS National
Meeting, Chicago, IL, United States, March 25-29, 2007. ORGN-818.
- Schubert, Jeffery W.; Ohta, Brian K. “Experimental and
theoretical investigations of chloronium ions.” 233rd ACS National
Meeting, Chicago, IL, United States, March 25-29, 2007. ORGN-088.
- Scupp, Thomas M.; Ohta, Brian K. “Measurement of Relative
pKas in a Multicomponent Titration by Two-Dimensional NMR.” Gamma Sigma
Epsilon National Chemistry Honor Society Conference, Fall 2006.
- Scupp, Thomas M.; Ohta, Brian K. “NMR Titration of Amino
Acids,” Villanova Undergraduate Summer Research Poster Session,
Villanova, PA, Fall 2006.
- Schubert, Jeffrey W.; Dudley, Timothy J.; Ohta, Brian K.
Theoretical and experimental investigations of methylated epoxides and
carbonyls. 38th Middle Atlantic Regional Meeting of the American
Chemical Society, Hershey, PA, United States, June 4-7, 2006. MRM-230.
- Denny, Michael S., Jr.; Ohta, Brian K. “Synthesis of
Dichloro Compounds as Precursors to Chloronium Ions,” Villanova
Undergraduate Summer Research Poster Session, Villanova, PA, Fall 2005.
- Hough, Ruth E.; Schubert, Jeffery W.; Ohta, Brian K.
“Determination of bromonium ion structure: Single symmetric structure
vs. rapid equilibrium.” 229th ACS National Meeting, San Diego, CA,
United States, March 13-17, 2005. ORGN-448.
- Schubert, Jeffrey W.; Ohta, Brian K. “Equilibrium Isotope
Effects and the Structure of the Bromonium Ion,” Merck Summer
Undergraduate Research Fellowship Symposium, West Point, PA, November
12, 2004.
- Hough Ruth E.; Ohta, Brian K. “Structure of Reaction
Intermediates: Aziridinium Imide and Bromonium Ions,” Wilkes
University, Wilkes-Barre, PA, November 12, 2004.
- Schubert, Jeffrey W.; Ohta, Brian K. “The Structure of the
Bromonium Ion,” Villanova Undergraduate Summer Research Poster Session,
Fall 2004.
- Grow, Margaret; Ohta, Brian K. “Synthesis of
Deuterium-labeled trans-Cyclooctene,” Villanova Undergraduate Summer
Research Poster Session, Fall 2004.
- Grow, Margaret; Ohta, Brian K. “The Synthesis of
trans-Cyclooctene-d1,” Poster presented to the Villanova Undergraduate
Summer Research Poster Session, Fall 2003.
- Perrin, Charles L.; Ohta, Brian K. “Symmetry of NHN
hydrogen bonds in solution.” 221st ACS National Meeting, San Diego, CA,
United States, April 1-5, 2001. ORGN-672.
- Perrin, Charles L.; Ohta, Brian K. “Secondary β-deuterium
isotope effects on amine basicity, and their stereochemistry.” 220th
ACS National Meeting, Washington, DC, United States, August 20-24,
2000. ORGN-301.
- Ohta, Brian K.; Perrin, Charles L. “Stereochemistry of
secondary β-deuterium isotope effects on amine basicity.” 219th ACS
National Meeting, San Francisco, CA, March 26-30, 2000. ORGN-281.
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- Ohta, Brian K.; Perrin, Charles L. “Hydrogen bond
symmetry of N,N'-diphenyl-6-aminofulvene-2-aldimine.” 217th ACS
National Meeting, Anaheim, Calif., March 21-25, 1999. ORGN-301.
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