Mark MacLachlan
Profile
Research and Teaching Interests
Supramolecular Chemistry, Materials Chemistry, Inorganic Chemistry, Organic Chemistry
Follow us on Twitter: @MacLachlanUBC
We develop new organic and inorganic molecules and materials with interesting properties that may find applications in electronics, photonics, catalysis, and other areas. We make the materials, characterize them, and study their properties, often in collaborations. We develop diverse materials - solid-state structures, polymers, gels, glasses, liquid crystals, etc. - to address interesting scientific and engineering problems. Some of our projects are aimed a combating environmental problems or improving alternative energy applications, such as solar energy conversion and hydrogen fuel cells.
Students make new molecules and materials, and study them by a large variety of techniques – electron microscopy, thermal analysis, NMR spectroscopy, IR / Raman spectroscopy, UV-vis / fluorescence spectroscopy, mass spectrometry, light scattering, X-ray crystallography, gas adsorption, calorimetry, polarizing optical microscopy, circular dichroism spectroscopy, electrochemistry, etc.
Below are examples of projects in progress or recently completed:
1. Mesoporous materials. We are creating new mesoporous materials for applications in optics, supercapacitor electrodes, and catalysis.
2. Supramolecular chemistry with macrocycles. We are working on the synthesis and self-assembly of new macrocycles, such as the macrocycles shown below:
3. Molecules with interesting shapes and properties.
4. Self-assembled structures, including gels.
Recent Sample Publications (for up-to-date list, see Research Group):
- Kandel, R.; Soto, M. A.; Medina, D.; Patrick, B. O.; Lelj, F.; MacLachlan, M. J. “A Redox-active Cyclometalated Platinum Ring Enables Synthetic Post-processing of a [2]Rotaxane” Angew. Chem. Int. Ed. 2024, in press.
- Ota, S.; Sota, M. A.; Patrick, B. O.; Kamal, S.; Lelj, F.; MacLachlan, M. J. “p-Extended Ligands with Dual-Binding Behavior: Hindered Rotation Unlocks Unexpected Reactivity in Cyclometalated Pt Complexes” Chem. Sci. 2024, 15, 14644–14650.
- Andrew, L. J.; Lizundia, E.; MacLachlan, M. J. “Designing for degradation: Transient devices enabled by (nano)cellulose” Adv. Mater. 2024, in press.
- Das Gupta, M.; Patrick, B. O.; Reid, J. P.; MacLachlan, M. J. “Benzene-1,3,5-Tricarboxamide Metal Complexes Self-Assembled in Nanofibers: Implications for Bimetallic Catalytic Nanomaterials” ACS Appl. Nano Mater. 2024, 7, 15005–15011.
- Ousaka, N.; MacLachlan, M. J.; Akine, S. “Stapling strategy for slowing helicity interconversion of α-helical peptides and isolating chiral auxiliary-free one-handed forms” Nature Commun. 2023, 14, 6834.
- Soto, M. A.; Chaudhry, M. T.; Matharu, G. K.; Lelj, F.; MacLachlan, M. J. “Molecular Flytraps Held Together by Pt‒Pt Intermetallic Bonds” Angew. Chem. Int. Ed. 2023, 62, e2023055.
- Andrew, L. J.; Gillman, E. R.; Walters, C. M.; Lizundia, E.; MacLachlan, M. J. “Multi-Responsive Supercapacitors from Chiral Nematic Cellulose Nanocrystal-Based Activated Carbon Aerogels” Small 2023, 19, 2301947.
- Xu, M; Xu, Z.; Soto, M. A.; Xu, Y.-T.; Hamad, W. Y.; MacLachlan, M. J. “Mechanically Responsive Circularly Polarized Luminescence from Cellulose Nanocrystal-based Shape-Memory Polymers” Adv. Mater. 2023, 35, 2301060.
- Cho, K.; Andrew, L. J.; MacLachlan, M. J. “Uniform Growth of Nanocrystalline ZIF-8 on Cellulose Nanocrystals: Useful Template for Microporous Organic Polymers” Angew. Chem. Int. Ed. 2023, 62, e202300960.
- Ackroyd, A. J.; De Paolis, A.; Xu, Y.-T.; Momeni, A.; Hamad, W. Y.; MacLachlan, M. J. “Self-assembly of cellulose nanocrystals confined to square capillaries” Nanoscale 2023, 15, 14388-14398.
- Das Gupta, M.; Boott, C. E.; Goon, J. E.; Patrick, B. O.; Reid, J. P.; MacLachlan, M. J. “Controlled Supramolecular Self-Assembly of Uniform Nanostructures from Trimetallic Complexes” ACS Appl. Nano Mater. 2023, 6, 4672–4680.
- Li, Z.; Soto, M. A.; Drummond, J. G.; Martinez, D. M.; Hamad, W. Y.; MacLachlan, M. J. “Cellulose Nanocrystal Gels with Tunable Mechanical Properties from Hybrid Thermal Strategies” ACS Appl. Mater. Interfaces 2023, 15, 8406–8414.
- Soto, M. A.; Carta, V.; Suzana, I.; Patrick, B. O.; Lelj, F.; MacLachlan, M. J. “Cycling a Tether into Multiple Rings: Pt-Bridged Macrocycles for Differentiated Guest Recognition, Pseudorotaxane Transformations, and Guest Capture and Release” Angew. Chem. Int. Ed. 2023, 62, e202216029.
- Andrew, L. J.; Walters, C. M.; Hamad, W. Y.; MacLachlan, M. J. “Co-assembly of Cellulose Nanocrystals and Neutral Polymers in Iridescent Chiral Nematic Films” Biomacromolecules 2023, 24, 896–908.
If you are interested in joining our team, please visit our homepage and contact Dr. MacLachlan for more information.
Contact
Curriculum Vitae
Professional
- 2024-present Dean of Science pro tem
- 2016-2023 Associate Dean of Research & Graduate Studies (Faculty of Science)
- 2017-present PI and Visiting Professor of the WPI Nano Life Science Institute at Kanazawa University
- 2014-2021 Director, NanoMat
- 2011-present Professor, University of British Columbia
- 2007-2011 Associate Professor, University of British Columbia
- 2001-2007 Assistant Professor, University of British Columbia
Education
- 1999-2001 NSERC Postdoctoral Fellow (at MIT with Prof. Tim Swager)
- 1995-1999 Ph.D. (Inorganic Chemistry at the University of Toronto with Profs. Ian Manners and Geoff Ozin)
- Thesis: New Directions in Inorganic Polymer and Materials Chemistry: Studies of Metal Germanium Sulfides, Ferrocene-Containing Materials, and Mesoporous Silica - Poly(Ferrocenylsilane) Composites
- 1991-1995 B. Sc. (Honours Chemistry, UBC)
Awards
- 2016 Fellow of the Royal Society of Chemistry (UK)
- 2016 Award for Research Excellence in Materials Chemistry (Canadian Society for Chemistry)
- 2015-2029 Tier 1 Canada Research Chair in Supramolecular Materials
- 2014 Steacie Prize for Natural Sciences (E.W.R. Steacie Memorial Fund)
- 2014 Elected Fellow of the Royal Society of Canada (FRSC)
- 2013 Rutherford Memorial Medal (Royal Society of Canada)
- 2013 Killam Award for Excellence in Graduate Student Mentorship (UBC)
- 2013 Japan Society for the Promotion of Science (JSPS) Invitational Fellowship (NIMS, Japan)
- 2013 Strem Award for Pure or Applied Inorganic Chemistry (Canadian Society for Chemistry)
- 2012-14 E.W.R. Steacie Memorial Fellowship (NSERC)
- 2011 Killam Research Prize (UBC)
- 2009-10 Alexander von Humboldt Fellowship (RWTH Aachen, Germany)
- 2008 Killam Prize for Excellence in Teaching (UBC)
- 2005 Killam Teaching Achievement Award (UBC)
- 2000 NSERC Doctoral Prize