Dedicated to static and dynamic condensed matter chemistry and materials science.

Advanced Crystallography

Uses a "rapid setup" crystallography facility that allows us to rapidly switch operation to the single-crystal instrument.

Liquid Surface/Interface X-ray Scattering

Used to investigate dynamical and structural properties of surfaces and interfaces in a variety of liquid and solid systems.

Anomalous Small Angle X-ray Scattering (ASAXS)

Focuses on element specific structural study of soft-matter in nano-dimensions.

Science Highlights

Controlled Nanosheet Growth at the Liquid-Liquid Interface

Science Highlights

Structural and Spectroscopic Characterization of an Fe(VI) Bis(imido) Complex

Science Highlights

Quantitative Determination of Ion Distribution around Macro-ions Explains Anomalous Critical Coagulation Concentration Behavior

Update on Status at NSF’s ChemMatCARS, January 12, 2021

Dear NSF’s ChemMatCARS Users,

Given the current state of the COVID-19 pandemic, the APS user program is currently operational to support:

  • Mail-in/remote access work for any research involving low-risk samples and most medium-risk samples as defined on the Experiment Safety Assessment Form.
  • Experiments proposed by users with prior APS experience that cannot be performed remotely and that meet specific criteria. These proposals will be considered on a case-by-case basis with no guarantee of approval. Contact apsuser@anl.gov for more information.

Please get in touch with the beamline contact to determine the ability of a specific beamline to support your research.

Onsite access remains prohibited for external users for majority of beamlines at APS, including ChemMatCARS beamline. Please see the announcement on the APS home page or the User Info During the COVID Pandemic page.

Beamline scientist contacts: Dr. Yu-Sheng Chen, Dr. Wei Bu and Dr. Mrinal Bera.

Recent Publications

NSF’s ChemMatCARS operates three experimental stations in the areas of advanced small-molecule crystallography, liquid surface and interface scattering, and small to wide-angle scattering at the Advanced Photon Source (APS), the premier undulator-based synchrotron source of high-brilliance high-energy x-rays in the U.S.A. The instrumentation at NSF’s ChemMatCARS provides information that addresses a broad range of issues in chemistry and materials research. NSF’s ChemMatCARS is supported by the Divisions of Chemistry (CHE) and Materials Research (DMR), National Science Foundation, under grant number NSF/CHE-1834750. Construction of a second beamline at NSF’s ChemMatCARS is supported by NSF grant CHE-1836674 with contributions from the Office of Multidisciplinary Activities within the Directorate of Mathematical and Physical Sciences and NSF Divisions in Chemistry (CHE), Molecular and Cellular Biology (MCB), and Chemical, Bioengineering, Environmental, and Transport Systems Engineering (CBET).


Latest News

NSF’s ChemMatCARS Receives $14 Million Grant from the National Science Foundation

        Mark Schlossman of the Department of Physics at the University of Illinois at Chicago [https://schloss.people.uic.edu] and Matthew Tirrell, Ka Yee C. Lee, Yu-Sheng Chen, and Binhua Lin at University of Chicago received a five-year grant for $14.1 million to build a canted undulator beamline at Sector 15, APS under grant number 1836674, to develop new capabilities at NSF’s ChemMatCARS (click here for detailed story).

NSF’s ChemMatCARS Team, March 2019. Left to Right: Natalie Chen, SuYin Grass Wang, Wei Bu, Yu-Sheng Chen, Theodore Betley, Mati Meron, Jason Benedict, Matthew Tirrell, Mark Schlossman, Mrinal Bera, Ka Yee Lee, Binhua Lin


IME Researchers Receive $12 Million Grant for NSF’s ChemMatCARS from the National Science Foundation

        Matthew Tirrell, dean of the Institute of Molecular Engineering at the University of Chicago, Mark Schlossman of the University of Illinois at Chicago, Ka Yee C. Lee of the University of Chicago, Theodore Betley of Harvard University, and Jason Benedict of the University at Buffalo, SUNY received a five-year grant for $12 million to operate and develop the National Science Foundation’s (NSF) ChemMatCARS (click here for detailed story).

NSF’s ChemMatCARS Team, May 2018. Front: Yu-Sheng Chen, Mark Schlossman, Binhua Lin, SuYin Grass Wang, Kimberly Simms, Ka Yee Lee. Back: Tieyan Chang, Mati Meron, Mrinal Bera, Jason Benedict, Wei Bu, Theodore Betley, Matthew Tirrell


In conjuction with the 2021 APS/CNM Users Meeting, NSF’s ChemMatCARS is offering a two-day school on data analysis for X-ray studies of liquid interfaces. The school is designed primarily for graduate students, postdoctoral researchers and young scientists with some expertise in liquid interface science. The registration is open.   

NSF’s ChemMatCARS is pleased to welcome new postdoc Tieyan Chang.  

NSF’s ChemMatCARS is pleased to welcome new postdoc Ying-Pin Chen.  

Our user Professor Raúl Hernández Sánchez, from the University of Pittsburgh, who has been selected to receive a National Science Foundation CAREER Award (2020). 

Congratulations, Raúl!

Congratulate Ankit Kanthe (2018 Faculty and Student Team Research Award at NSF’s ChemMatCARS recipient) on his successful Ph.D thesis defense. Click here to watch his presentation.

Advanced Crystallography Workshop was held on December 14-15, 2019. Attendees review the current scientific program in advanced crystallography and explore how our program could benefit from the APS-U.

Click here for more info

Liquid Interfaces Workshop was held on November 21-22, 2019. Attendees contributed to planning for new initiatives at NSF’s ChemMatCARS in X-ray scattering from liquid interfaces, including liquid-solid, liquid-liquid and liquid-vapor interfaces.

Click here for more info