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Rossini Group July 2017 (Left to Right): Li Zhao, Amrit Venkatesh, Matt Ryan, Aaron Rossini, Mike Hanrahan, Scott Carnahan, Rachel Gloeckner. Background: 400 MHz/263 GHz Bruker DNP Solid-State NMR Spectrometer, DOE Ames Lab.

Overview

Welcome to the home page for the Rossini research group in the Department of Chemistry of Iowa State University. We are an experimental physical chemistry research group interested in the characterization of solid materials, catalysts and pharmaceuticals. The primary tool we use to accomplish this is solid-state nuclear magnetic resonance (NMR) spectroscopy.

For more information about our research please visit the Research and Publications pages.

To see some photos of our labs and facilities please visit the Facilities page.

If you are interested in joining our group please email Professor Rossini at arossini@iastate.edu!

News

09/2017 - A new paper Enhancing the Resolution of 1H and 13C Solid-State NMR Spectra by Reduction of Anisotropic Bulk Magnetic Susceptibility Broadening is out in the journal Physical Chemistry Chemical Physics. This paper demonstrates that 2D HETCOR experiments can be used to directly improve the resolution of 1H and 13C solid-state NMR spectra by reducing the inhomogeneous ABMS broadening. This work was performed in collaboration with Prof. Eric Munson (University of Kentucky).

08/2017 - We are pleased to welcome Dr. Brijith Thomas to the group as a post-doctoral fellow.

07/2017 - A new paper The Solvent-Solid Interface of Acid Catalysts Studied by High Resolution MAS NMR is out in the Journal of Physical Chemistry C. This work was performed in collaboration with Dr. Robert Johnson and Prof. Brent Shanks (ISU).

06/2017 - We are pleased to welcome Dr. Li Zhao to the group as a post-doctoral fellow.

06/2017 - A new paper, Argentation Gas Chromatography Revisited: Separation of Light Olefin/Paraffin Mixtures Using Silver-based Ionic Liquid Stationary Phases, is published in Journal of Chromatography A in collaboration with Professor Jared Anderson (ISU). In this paper Amrit obtained 109Ag solid-state NMR spectra of some silver ionic liquids using fast magic angle spinning and proton detection.

06/2017 - Some new articles from Aaron's post-doc work with Lyndon Emsley are published. A paper in Journal of the American Chemical Society in collaboration with Christophe Copéret (ETH Zurich) describes the characterization of trivalent surface grafted organometallic complexes with DNP enhanced NMR. A paper in the Journal of Physical Chemistry C describes the application of DNP enhanced NMR for the characterization of calcium silicate cement materials. This paper was in collaboration with Paul Bowen (EPFL).

04/2017 - A new paper Proton Detection of MAS Solid-State NMR Spectra of Half-Integer Quadrupolar Nuclei is available in Solid State Nuclear Magnetic Resonance. Also, congratulations to Mike and Amrit who received scholarships/awards from the Chemistry Department. Both Scott and Amrit were named as finalists for the Cotton-Uphaus Award. Congratulations to Amrit for winning the Cotton-Uphaus Award!

03/2017 - A new perspective article Lead Halide Perovskites: Challenges and Opportunities in Advanced Synthesis and Spectroscopy is available in ACS Energy Letters. This work was a collaboration with Prof. Javier Vela and Prof. Emily Smith. A video summarizing the perspective can also be viewed here.

01/2017 - A couple of new papers are out. "Indirect Detection of Infinite-Speed MAS Solid-State NMR Spectra" appears in the Journal of Magnetic Resonance and was a collaboration with Dr. Fred Perras and Dr. Marek Pruski (Ames Lab/ISU). "Transfer Hydrogenation Activity over Sodium-Modified Ceria: Enrichment of Redox Sites Active for Alcohol Dehydrogenation" appears in the Journal of Catalysis and was a collaboration with Dr. Igor Slowing's group (Ames Lab/ISU).

01/2017 - We are pleased to welcome Matt Ryan to the group. Matt is an undergraduate student researcher who is part of the ISU University Honors program.

10/2016 - We are pleased to welcome to the group new graduate students Amrit Venkatesh and Scott Carnahan and undergraduate student researchers Ryley Schubert and Rachel Gloeckner.

08/24/2016 - A new article "35Cl Dynamic Nuclear Polarization Solid-State NMR of Active Pharmaceutical Ingredients" is accepted for publication in Physical Chemistry Chemical Physics . This was a collaboration with Rob Schurko's group (University of Windsor) and Lyndon Emsley (EPFL).

08/22/2016 - A new article "Rapid Acquisition of Wideline MAS Solid-state NMR Spectra with Fast MAS, Indirect Proton Detection, and Dipolar HMQC Pulse Sequences" is accepted for publication in Physical Chemistry Chemical Physics .

07/25/2016 - A new article with Javier Vela's group (ISU), "Persistent Dopants and Amorphous Phases in Organolead Halide Perovskites" is published in Chemistry of Materials . This article demonstrates the use of 207Pb solid-state NMR spectroscopy to characterize methylammonium lead perovskite photo-voltaic materials.

07/21/2016 - Aaron and Mike attend the Rocky Mountain Conference on Magnetic Resonance in Breckenridge, Colorado and give poster presentations.

06/04/2016 - Aaron attends the Canadian Society for Chemistry Meeting in Halifax Nova Scotia and gives two talks.

06/01/2016 - Yan Chen joins the group as a summer research student from Beijing Normal University.

05/24/2016 - A new article is published from Aaron's post-doc work in Chemistry of Materials. This work describes the characterization of molecular phosphorus precursors for silicon doping by DNP enhanced 31P solid-state NMR. This was in collaboration with Christophe Copéret (ETH Zurich) and Chloé Thieuleux (CPE Lyon).

05/13/2016 - Amrit Venkatesh joins the group as a summer research student. Welcome Amrit!

05/13/2016 - A new article is published from Aaron's post-doc work in ACS Catalysis. This work describes DNP enhanced solid-state NMR for characterization of Sn-Beta zeolites prepared by different synthetic methods. This was a collaboration with Christophe Copéret (ETH Zurich) and Ive Hermans (UW Madison).

03/22/2016 - A new article from AJR's post-doc work in Lyndon Emsley's lab describing NMR crystallography of a complex organic material is published in Chemical Science.

01/15/2016 - David Hirsh visits from Prof. Robert W. Schurko's group at the University of Windsor to perform DNP experiments.

10/01/2015 - Mike Hanrahan joins the group as a graduate student.

08/23/2015 - Aaron Rossini starts at ISU.