Affiliation: | (1) Department of Chemistry, Brandeis University, Waltham, MA, 02454-9110, U.S.A.;(2) Department of Biochemistry, Brandeis University, Waltham, MA, 02454-9110, U.S.A.;(3) Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, U.S.A. |