Stephen Cramer

image of Stephen Cramer

Advanced Light Source Professor



Offices and Labs

3017 Ghausi Hall
(530) 752-0360
2113 Ghausi Hall


1978 Ph. D Chemistry Stanford University
1973 B. A. Chemistry Williams College

Research Interests

Spectroscopy and Biochemistry

The Cramer group uses spectroscopic methods to characterize the molecular and electronic structure of metal sites in bioinorganic systems and environmental samples. Of particular interest are the enzymes nitrogenase (which catalyzes nitrogen fixation to ammonia) and hydrogenases (which catalyze interconversion of protons and electrons to hydrogen molecules).


2012 - International X-Ray Absorption Society Edward Stern Outstanding Achievement Award
2012 – Xiamen University – Lu Jiaxi Lectureship
2010 – ACS Division of Analytical Chemistry Award in Spectrochemical Analysis
2008 Chair, Iron-Sulfur Enzyme Gordon Research Conference
2013 - New York Society for Applied Spectroscopy Gold Medal
2013 - AAAS Fellow
2014-2015 - Humboldt Research Award


Biophysical Society
Coblentz Society

CBS Grad Group Affiliations


Graduate Groups not Housed in CBS

Applied Science - Engineering
Chemistry (Letters and Science)


Chemistry CHE-2B


6/11/2014 4:18:24 PM
  • "Observation of the Fe-CN and Fe-CO Vibrations in the Active Site of [NiFe] Hydrogenase by Nuclear Resonance Vibrational Spectroscopy", Kamali, S.; Wang, H.; Mitra, D.; Ogata, H.; Lubitz, W.; Manor, B.; Rauchfuss, T.; Byrne, D.; Bonnefoy, V.; Jenney, F.; Adamsn M.; Yoda, Y.; Alp, E.; Zhao, J.; Cramer, S. P. Angew. Chem. Int. Ed., 2013, 52, 724-728.
  • "Photolysis of ‘Hi-CO’ Nitrogenase – Observation of a Plethora of Distinct CO Species via Infrared Spectroscopy", Yan, L.; Dapper, C. H.; George, S. J.; Wang, H.-X.; Mitra, D.; Dong, W.-B.; Newton, W. E.; Cramer, S. P. Eur. J. Inorg. Chem., 2011, 2011, 2064-2074.
  • "Steric Control of the of Hi-CO MoFe Nitrogenase Complex Revealed by Stopped-Flow Infra-red Spectroscopy", Yang, Z.-Y.; Seefeldt, L. C.; Dean, D. R.; Cramer, S. P.; George, S. J. Angew. Chem., 2011, 123, 286-289.