Current and Past Personnel

Group Photo '04
June 2012
Front row (L->R): Bruce Moyer, Arbin Rajbanshi, Jason Richards, Arnaud Marsiglia, Eranda Wanigasekara, Ben Hay, and Janos Nadas
Row 2 (L ->R): , Chris Grant, Carolyn Shetter, Melissa Freiderich, Nathan Duncan
Rear row (L->R): Fred Sloop, Chris Avetta, Radu Custelcean, Sung-Ok Kang, Ben Roach, Andria Panagopoulos, and Lætitia H. Delmau
Missing: Peter Bonnesen, Jerome Moine, Shun Wan, and Neil Young
You can also check out our group photos from 1992 (232 Kb), 1993 (389 Kb), 1994 (422 Kb), 1997 (233 Kb), 1999 (168 Kb), 2001 (168 Kb), 2003 (168 Kb), February 2004 (168 Kb),September 2004 (168 Kb),July 2005 (168 Kb),July 2008 (168 Kb), and March 2011 (168 Kb).

ball Regular Research Staff

Bruce A. Moyer, Group Leader. Ph.D. 1979, Inorganic Chemistry, University of North Carolina, Chapel Hill. Separations, solvent extraction, ion exchange, actinides, coordination chemistry, solution thermodynamics, radiochemistry. e-mail
Peter V. Bonnesen, Ph.D. 1989, Inorganic Chemistry, University of California, Los Angeles. Separations chemistry, solvent extraction, ion exchange, coordination chemistry, radiochemistry, organometallic chemistry, polymer chemistry. e-mail
Radu Custelcean, Ph.D. 2000, Physical Organic Chemistry, Michigan State University. Structural chemistry, solid-state organic chemistry, X-ray crystallography, molecular and crystal design, materials chemistry. e-mail
Lætitia H. Delmau, Ph.D. 1997, Physical Chemistry, University of Strasbourg, France. Physical chemistry, analytical chemistry, and/or radiochemistry with emphasis on inorganic chemistry, separations chemistry, and/or Nuclear Magnetic Resonance spectroscopy. e-mail
Benjamin P. Hay, Ph.D. 1986, Physical Organic Chemistry, University of Oregon. Molecular design, supramolecular chemistry, molecular recognition, molecular structure, physical organic chemistry, coordination chemistry, force field models, electronic structure models. e-mail
Frederick V. Sloop, Jr., M.S. 1982, Biology/Microbiology, Indiana University of Pennsylvania. Biochemistry, microbiology, environmental chemistry, chromatography, capillary electrophoresis, synthesis, labels for DNA sequencing, biotechnology, sensors, defense counterproliferation programs. e-mail

ball Other Members of the Chemical Separations Group

Charles F. Baes, Jr.1 Ph.D. 1950, Chemistry, University of Southern California. January 1988 - present. e-mail

Nathan Duncan2 Ph.D. 2009, Organic Chemistry, Baylor University. February 2009 - present. e-mail

Christopher Avetta2 Ph.D. 2008, Chemistry, Penn State. June 2010 - present. e-mail

Arbin Rajbanshi2 Ph.D. 2010, Chemistry, Kansas State University. June 2010 - present. e-mail

Eranda Wanigasekara2 Ph.D. 2010, Analytical Chemistry, University of Texas, Arlington. January 2011 - present. e-mail

Sung-Ok Kang2 Ph.D. 2002, Organic Chemistry, Chonnam National University, Korea. February 2011 - present. e-mail

Benjamin Roach2 Ph.D. 2010, Chemistry, University of Edinburgh, UK. March 2011 - present. e-mail

Neil Young2 Ph.D. 2010, Chemistry, Cardiff University, UK. March 2011 - present. e-mail

2 Ph.D. 2007, Chemistry, University of Toronto, Canada. April 2011 - present. e-mail

Melissa Freiderich2 Ph.D. 2011, Radiochemistry, Washington State University. October 2011 - present. e-mail

Andria Panagopoulos2 Ph.D. 2010, Organic Chemistry, Loyola University, Chicago. January 2012 - present. e-mail

Christopher Grant2 Ph.D. 2012, Organic Chemistry, University of Texas at Austin, June 2012 - present. e-mail

Arnaud Marsiglia3 Ecole Nationale Supérieure de Chimie de Paris. February 2012 - present. e-mail

Jerome Moine3 Ecole Nationale Supérieure de Chimie de Montpellier. March 2012 - present. e-mail

Jason Richards3 Utah State University. June 2012 - present. e-mail

Carolyn Shetter3 Allegheny College. June 2012 - present. e-mail

1Consultant, 2Post-Doc, 3Undergraduate Students.

ball Past Contributors to The Chemical Separations Group

Former Staff Members

Charles F. Baes, Jr., Ph.D. 1951 - 1987 e-mail

Gilbert M. Brown, Ph.D. 1989 - 2001 e-mail

Jeffrey C. Bryan, Ph.D. 1994 - 2002 e-mail

John H. Burns, Ph.D. 1959 - 1994.

Faith I. Case

Gerald N. Case

Charles F. Coleman Dec. Ph.D. 1944 - 1983

W. Jack McDowell Dec. 1952 - Jan. 1989.

Richard A. Sachleben, Ph.D. 1987 - 1999 e-mail

Tamara J. Keever, B.S. 1991, Chemistry, Dickinson State University e-mail

Dual Assigned Staff Members

Frederick V. Sloop (Biology Div. & Human Genome Proj.) Nov. 1992 - Nov. 1994

Michael N. Burnett (CASD's Instrumentation Group) Oct. 1996 - Sept. 1997

Chuen-Huei Ho (CASD) 1996 - 1998

Post-Doctoral Investigators

NameDegree Year FieldInstitution Dates as CSG Postdoc Current or Last Known Employer
Richard Kessler      
Samuel A. Bryan Ph.D. 1984Chemistry Washington State University Spring 1984 - Summer 1986 Pacific Northwest National Laboratory, Richland, WA
Richard A. Sachleben Ph.D. 1985Chemistry W.M. Rice University 1986 - 1987 Momenta Pharmaceuticals, Cambridge, MA. Email:  
Sook-Hui Kim          
Greg J. Lumetta Ph.D. 1985Chemistry University of Missouri, St. Louis 10/87 - 6/90 Pacific Northwest National Laboratory, Richland, WA
Martha L. Garrity Ph.D. 1989Organic Chemistry U. of N. Carolina Chapel Hill. 10/89 - 12/91 Nichols Institute Diagnostics, San Juan Capistrano, CA
Gene Wu Ph.D. 1990Chemistry Brigham Young University 1/91 - 8/91 Dow Chemical, Freeport, TX
Zhihong Chen Ph.D. 1991Chemistry University of Miami 12/91 - 8/94Hoffman-LaRoche in Florence, SC
Yanpei Deng Ph.D. 1991Chemistry Ohio State University. 1/92 - 6/95 Bayer Healthcare Metrika, Sunnyvale, CA
Jeffrey E. Elbert Ph.D. 1990Chemistry Northwestern University 8/92 - 7/94 University of Northern Iowa, Cedar Rapids, IA. email:
Goutam Das Ph.D. 1992Organic Chemistry University of Pennsylvania. 11/95 - 1/97 Betz Dearborn, Hydrocarbon Process Group, Inc., The Woodlands, TX
Andrei Alexandrovich Gakh Ph.D. 1983Organic Chemistry Zelinsky Institute of Organic Chemistry, Moscow, Russia 10/96 - 5/97 Global Security Directorate, ORNL, Oak Ridge, TN. email:
Yunfu Sun Ph.D. 1990Chemistry University of Rhode Island 10/92 - 4/97 Magnequench International, Inc., Anderson, IN
C. Kevin Chambliss Ph.D. 1998Chemistry Colorado State University 11/98 - 7/99 Department of Chemistry & Biochemistry, Baylor University, Waco, TX
Lætitia H. Delmau Ph.D. 1997University of Strasbourg, FranceChemistry 9/97 - 7/00 Chemical Separations Group, ORNL, Oak Ridge, TN
Konstantinos Kavallieratos Ph.D. 1998Yale UniversityChemistry 7/98 - 8/00 Florida International University, Miami, FL
Tatiana Levitskaia Ph. D. 1999Brigham Young UniversityChemistry 12/99 - 5/02 Pacific Northwest National Laboratory
Christopher Fowler Ph. D. 2001University of Texas at AustinChemistry 11/02 - 7/03 Dept. of Chemistry, High Point College, High Point, NC. email:
Hyun-Ah Kang Ph.D. 2002Korean Advanced Institute of Science and TechnologyChemical Engineering 01/03 - 11/04 Samsung, Seoul, South Korea
Maryna Gorbunova Ph.D. 1992Institute of Bioorganic Chemistry of the National Academy of Sciences of Ukraine, Univ. of Ukraine.Organic Chemistry 10/02 - 01/05 Tennessee Eastman, Johnson City, TN.
Leah Eller Ph. D. 2005University of Texas at AustinChemistry 2/05 - 7/06 Dept. of Chemistry, St. MaryÕs College of Maryland, St. MaryÕs City, MD. email:
Christopher Borman2 Ph.D. 2007Analytical ChemistryUniversity of Wyoming. 06/08 - 06/11.

Xiaohua Zhang Ph.D. 2007Physical ChemistryUniversity of California, Santa Barbara 04/10 - 11/11 Lawrence Livermore National Laboratory

Janos Nadas Ph.D. 2009Computational Chemistry and OrganicOhio State University 01/11 - 06/12 Georgetown University

Guest Faculty & Scientists

Spiro D. Alexandratos (University of Tennessee, Knoxville, Dept. of Chemistry) Aug. 1982 - Jan. 2001

Samuel A. Bryan (Georgia Southern University) Summer 1988 & 1989

Ziling Ben Xue (University of Tennessee, Knoxville, Dept. of Chemistry) Apr. 1994 - Oct. 2001

Alan P. Marchand (University of North Texas) Summer 1994

Wing K. Kot (SAIC Research Chemist) June 1994 - Oct. 1995

Peter J. Moehs (Saginaw Valley State University) Jan-Aug. 1995

Ralph C. Gatrone (Wilkes University) Summer 1995

Jeffrey E. Elbert (South Dakota State University) Summer 1995

Andrei A. Gakh (N.D. Zelinsky Institute of Organic Chemistry, Moscow, Russia) Jan. 1997 - May 1997

Carl P. Johnson (Southern University at New Orleans) Summer 1997

Cassandra T. Eagle (Appalachian State University) Summer 2001

Linda Foote (ORNL Life Sciences Division Scientist) February 2001 - January 2002. e-mail

Richard A. Sachleben (DuPont) Spring, Summer 2001

Victor Pastushok (National Academy of Science of the Ukraine) Feb. 2001 - April 2002

Wayne C. Wolsey (Macalester College) July 2001 - May 2002

Konstantinos Kavallieratos (Florida International University) May 2002 - July 2002

Yumi Yaita (Toshiba) April 2002 - September 2002

Alamgir Hossain (Jackson State University) May 2007 - August 2007

Lori Watson (Earlham College) July 2010 - December 2010

Guest High School Teachers

George Noeth (Memphis) Summer 1989.

James Watson III (Oak Ridge High School) Summer 1989.

High School Student Guests

Chris Robb (Oak Ridge High School) Fall 1989 - Summer 1990.


Name Institution Dates with the CSG
Frederick V. Sloop University of Tennessee Mar. 1989 - Nov. 1992.
V. Susan Armstrong Oak Ridge Research Institute [O.R.R.I.] June 1993 - Jan. 1994.
Tamara J. Haverlock O.R.R.I.Oct. 1993 - Sep. 1995
Jon L. Driver O.R.R.I.Feb. 1992 - July 1993.
Laurie M. Bates O.R.R.I.Jan. 1995 - Jan. 1996.
Derek J. Presley Kelly Scientific Services July 1994 - Sep. 1997.
Kim Andrews Kelly Scientific ServicesJune 1997 - Oct. 1998
Nancy L. Engle Kelly Scientific Services & ATIJan. 1998 - Dec. 2004

Graduate Students

Darryl Crick

Dave Wilson

Donna Quillen

Amanda Hood Kriger M.S. Chemistry, June 1991 - May 1993, University of Tennessee, Knoxville.

Kirsten K. Wolpert Department of Chemistry, University of Tennessee, Knoxville.

Anil Kumar Batra M.S. Environmental Engineering, 1995, University of Tennessee, Knoxville.

Srinivas Kilambi Ph.D. Environmental Engineering, 1996, University of Tennessee, Knoxville.

Diadra M. Viz M.S. Chemistry, Feb. 1996 - May 1997. University of Tennessee, Knoxville.

C. Kevin Chambliss Ph.D. Chemistry, 1998, Colorado State University

Marc Klingshirn M.S. Chemistry, 1999, University of Tennessee, Knoxville

Tatiana Levitskaia Ph.D. Chemistry, 1999, Brigham Young University

Neil Williams M.S. 2010, Inorganic Chemistry, UNC Wilmington

Rachel Severance Ph.D. Chemistry, exp May 2012, University of South Carolina

Undergraduate Students

Name Undergraduate Institution Dates With CSG
Bob Chadwick   
Rich Willis   
Doug Tomzack Lawrence University Fall 1987.
Bruce Arnstead St. Olaf College Fall 1987.
Kris L. Burchett Erhlam College Fall 1988
Kelly Chura Alma College Summer 1989
Susan Kelleher Alfred University, NY Jan. - Aug. 1989
Nicki M. Wilson University Northern Colorado Fall 1989.
Michelle Kroupa Albion College Fall 1990.
Paula A. Johnson Wittenberg University Spring 1990.
Stuart A. Garmon Appalachian State University Fall 1990.
Eric S. Ripple University of Tennessee, Knoxville Summer 1989, 1990.
James J. Bruce Lander College Fall 1990.
Juan Abreu University of Puerto Rico Fall 1990.
Debbie Czarnecki Lawrence University Fall 1991.
Matthew C Davis St. Mary's College of Maryland May 1992 - Jan. 1993.
Darla R. Bailey Seton Hill College Jan. 1993 - Dec. 1993.
Diadra M. Viz Wilkes University, PA Jan. 1993 - Aug. 1993.
Kerri L. Cavanaugh Dartmouth Fall 1993
Courtney Starks Colorado College Fall 1993
Zach Skelding St. Marys College, VA Fall 1993
Lætitia H. Delmau Ecole Supérieure de Physique et de Chimie Industrielles [ESPCI, Paris] Fall 1992, Summer 1993, Summer 1994.
Tim Fisher Carleton College Fall 1994
Jérôme Lavis ESPCI, Paris & University of Paris VI Fall 1994, Summer 1995, Summer 1996, Fall 1997
Tanneguy Descazeaud ESPCI, Paris Fall 1995, Summer 1996
Claude-Emmanuel Hédoire ESPCI, Paris Fall 1996, Summer 1997
Agathe Urvoas ESPCI, Paris Fall 1997, Summer 1998
Bruno Franconville ESPCI, Paris Fall 1998
Thomas Lefranc Ecole Nationale Supérieure de Chimie de Paris February - July 1999
Douglas J. Lemme Rhodes College Summer 1999
Melissa A. Kelly Macalester College Fall 1999
Caroline Duchemin Ecole Nationale Supérieure de Chimie de Paris February 2000 - August 2000
Thomas Vercouter Ecole Nationale Supérieure de Chimie de Paris February 2001 - August 2001
Cara L. Johnston Colorado College August 2001 - December 2001
Steve Schayer Lasalle University June 2002 - August 2002
Alexandre Ruas Ecole Nationale Supérieure de Chimie de Paris February 2002 - August 2002
Jennifer L. Rumppe Beloit College August 2002 - December 2002
Eve Bazelaire Ecole Nationale Supérieure de Chimie de Paris February 2003 - July 2003
Mary E. Ditto Knox College August 2003 - December 2003
Christian J. Hoydic Clarion University June 2004 - August 2004
Alicia Powers Georgia Institute of Technology June 2004 - August 2004 and June 2006 - August 2006
Jean-David Chazalet Ecole Nationale Supérieure de Chimie de Paris February 2005 - August 2005
Fanny Loustau-Chartez Ecole Nationale Supérieure de Chimie de Paris February 2005 - August 2005
Matthieu Wintergerst Ecole Nationale Supérieure de Chimie de Paris February 2005 - August 2005
Carol Pham University of Hawaii June 2005 - August 2005
Rachel Robeson Earlham College August 2005 - December 2005
Vincent Sellin Ecole Nationale Supérieure de Chimie de Paris February 2006 - August 2006
Alexandra Dinspel Ecole Nationale Supérieure de Chimie de Paris February 2007 - August 2007
Priscilla Remy Ecole Nationale Supérieure de Chimie de Paris February 2007 - August 2007
John Partridge Tennessee Tech University May 2007 - August 2007, May 2008 - August 2008
Kimberly Tucker Jackson State University June 2007 - August 2007
Bethtrice Thompson Jackson State University June 2007 - August 2007
Trina Hayes Jackson State University June 2007 - August 2007
Aurélien Bock Ecole Nationale Supérieure de Chimie de Paris February 2008 - August 2008
Jérome Bosano Ecole Nationale Supérieure de Chimie de Paris February 2008 - August 2008
Bastien Lecomte Ecole Nationale Supérieure de Chimie de Paris February 2008 - August 2008
Séverine Girard Ecole Nationale Supérieure de Chimie de Paris February 2008 - August 2008
Lee Pedzisa Colorado College August 2008 - December 2008.
Charles Masselin Ecole Nationale Supérieure de Chimie de Paris March 2009 - August 2009
Lisa Faye Ecole Nationale Supérieure de Chimie de Paris April 2010 - September 2010
Erica Stoner Tennessee Tech University May 2010 - August 2010
Jordan Dunne Tennessee Tech University June 2010 - August 2010
Nathan Ladd East Tennessee State University May 2010 - August 2010
Charles de Sahb Ecole Nationale Supérieure de Chimie de Paris April 2011 - September 2011
Julie Drouet Ecole Nationale Supérieure de Chimie de Paris April 2011 - September 2011
Philippe Marc Ecole Nationale Supérieure de Chimie de Montpellier May 2011 - October 2011

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Revision:  by Lætitia H. Delmau