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DR. DARREN BROUWER


Associate Professor of Chemistry
Phone: 905.648.2139 Ext 4240
Fax: 905.648.2134
Office: 221D
Email: dbrouwer@redeemer.ca

Courses taught:
CHE 121   General Chemistry I/Laboratory
CHE 233   Inorganic Chemistry/Laboratory
CHE 242   Analytical Chemistry I/Laboratory
CHE 263   Organic Chemistry I/Laboratory
CHE 264   Organic Chemistry II
CHE 381   Chemistry Senior Seminar
CHE 390   Chemistry Senior Research Project

EDUCATION

Ph.D. (2003), Chemistry, University of British Columbia
Dissertation: "Location, Disorder, and Dynamics of Guest Species in Zeolite Frameworks Studied by Solid State NMR and X-ray Diffraction."

B.Sc. Hons (1997), Chemistry, University of Guelph

B.C.S. (1997), Liberal Arts & Science, Redeemer University College


RESEARCH INTERESTS

  • Solid-State Nuclear Magnetic Resonance Spectroscopy
  • Structural Chemistry
  • Materials Science
  • Computational Chemistry
  • Developing project based learning approaches for chemistry and environmental science (see here for an example) 

RESEARCH FUNDING

NSERC Discovery Grant and Early Career Researcher Supplement, "New methods for structure determination of materials by solid-state nuclear magnetic resonance spectroscopy, 2010-2016.
 
Zylstra Program for Public Scholarship Grant, "Water quality monitoring of the Chedoke and Spencer Creek watersheds" (with Dr. Edward Berkelaar), 2015-2016. 


CURRENT RESEARCH

Understanding the atomic and molecular level structure of materials is of fundamental interest in chemistry and materials science. By understanding the structure of materials, a greater understanding of their functions can be developed. Nuclear magnetic resonance (NMR) spectroscopy, a close cousin to magnetic resonance imaging (MRI) that many are familiar with in a medical context, is a powerful tool for elucidating the structural features of materials. I am particular interested in exploring the ability of NMR spectroscopy to be used for crystallography – the determination of crystal structures – by which the atomic arrangement of materials can be determined.

I am also very interested in local environmental issues and developing ways in which our students can engage and address these local issues through project based learning in our classes, senior research projects, and summer research opportunities. Over the past few years, my analytical chemistry classes have been carrying out water quality monitoring projects of a local highly urbanized watershed that drains into an ecologically important wetland, finding that there are quite clear signs of sewage contamination and nutrient pollution. In addition to learning lots about analytical and environmental chemistry, we have been engaging with the City of Hamilton and local environmental stakeholders to find way to address this problem.
 

RECENT PUBLICATIONS


D.H. Brouwer and M.A. Horvath. A simulated annealing approach for solving zeolite crystal structures from two-dimensional NMR correlation spectra. Solid State Nuclear Magnetic Resonance 2015, 65, 89-98.

S. Cadars, M. Allix, D.H. Brouwer, R. Shayib, M. Suchomel, M.N. Garaga, A. Rakhmatullin, A.W. Burton, S.I. Zones, D. Massiot, B.F. Chmelka. Long- and short-range constraints for the structure determination of layered silicates with stacking disorderChemistry of Materials 2014,  26, 6994-7008. 
T.L. Spencer, N.W. Plagos, D.H. Brouwer, G.R. Goward. The use of Li} REDOR NMR spectroscopy to compare the ionic conductivities of solid-state lithium ion electrolytesLi{76Physical Chemistry Chemical Physics 2014, 16, 2515-2526. 
 
D.H. Brouwer, S. Cadars, J. Eckert, Z. Liu, O. Terasaki, B.F. Chmelka. A general protocol for determining the structures of molecularly ordered but non-crystalline silicate frameworks. Journal of the American Chemical Society 2013, 135, 5641–5655.

D.H. Brouwer. Structure solution of network materials by solid-state NMR without knowledge of the crystallographic space group. Solid State Nuclear Magnetic Resonance 2013, 51, 37-45.

D.H. Brouwer, K.P. Langendoen, Q. Ferrant. Measurement and calculation of 13C chemical shift tensors in alpha-glucose and alpha-glucose monohydrate. Canadian Journal of Chemistry 2011, 89, 737-744.

D.H. Brouwer, I.L. Moudrakovski, R.J. Darton, R.E. Morris. Comparing quantum-chemical calculation methods for structural investigation of zeolite crystal structures by solid-state NMR spectroscopy. Magnetic Resonance in Chemistry 2010, 48, S113-S121.

P.G. Gordon, D.H. Brouwer, J.A. Ripmeester, Probing the local structure of pure ionic liquid salts with solid- and liquid-state NMRChemPhysChem 2010, 11, 260-268.

S. Cadars, D.H. Brouwer, B.F. Chmelka. Probing local structures of siliceous zeolite frameworks by solid-state NMR and first-principles calculations of 29Si-O-29Si scalar couplings. Physical Chemistry Chemical Physics 2009, 11, 1825-1837.

D.H. Brouwer. Interplay between solid-state NMR and single-crystal X-ray diffraction. Chapter in NMR Crystallography, R.K. Harris, R.E. Wasylishen, M.J. Duer (Eds.), John Wiley and Sons 2009, pp. 263-274.

D.H. Brouwer. Crystal structure refinement with solid-state NMR: An improved structure of silica-ZSM-12 zeolite from 29Si chemical shift tensors. Journal of Magnetic Resonance 2008, 194, 136-146. 

D.H. Brouwer, S. Alavi, J.A. Ripmeester. NMR crystallography of p-tert-butylcalix arene host-guest complexes using 1H complexation-induced chemical shifts. Physical Chemistry Chemical Physics 2008, 10, 3857-3860.

D.H. Brouwer. NMR crystallography of zeolites: Refinement of an NMR-solved crystal structure using ab initio calculations of 29Si chemical shift tensors. Journal of the American Chemical Society 2008, 130, 6306-6307.

D.H. Brouwer, G.D. Enright. Probing local structure in zeolite frameworks: Ultrahigh-field NMR measurements and accurate first principles calculations of zeolite 29Si magnetic shielding tensors. Journal of the American Chemical Society 2008, 130, 3095-3105.

C.A. Fyfe, D.H. Brouwer. Optimization, standardization, and testing of a new NMR method for the determination of zeolite host-organic guest crystal structures. Journal of the American Chemical Society 2006, 128, 11860-11871.

D.H. Brouwer, R.J. Darton, R.E. Morris, M.H. Levitt. A solid-state NMR method for solution of zeolite crystal structures. Journal of the American Chemical Society 2005, 127, 10365-10370.

D.H. Brouwer, P.E. Kristiansen, C.A. Fyfe, M.H. Levitt. Symmetry-based 29Si dipolar recoupling magic angle spinning NMR: A new method for investigating three-dimensional structures of zeolite frameworks. Journal of the American Chemical Society 2005, 127, 542-543.


PROFESSIONAL MEMBERSHIPS AND ASSOCIATIONS

American Chemical Society

Chemical Institute of Canada

PROFESSIONAL EXPERIENCE

NSERC Post-Doctoral Research Fellow (2003-2005) with Prof Malcolm Levitt, School of Chemistry, University of Southampton
Assistant Research Officer (2006-2008) Steacie Institute of Molecular Sciences, National Research Council of Canada