The lineshapes of two-dimensional magnetic resonance spectra of disordered or partially-ordered solids are defined by ridges of singularities in the frequency plane. The positions of these ridges are described by a branch of catastrophe theory concerning the mapping of one 2-D surface onto another. The specific case of HYSCORE spectra for paramagnetic centers having electron spin S = ½ and nuclear spin I = 1 is discussed in terms of catastrophe theory using an exact solution of the nuclear spin Hamiltonian. The line shape characteristics are considered for several general cases
Revised: August 30, 2006 |
Published: March 1, 2006
Citation
Maryasov A.G., and M.K. Bowman. 2006.Two-dimensional hyperfine sublevel correlation spectroscopy: Powder features for S = 1/2, I = 1.Journal of Magnetic Resonance 179, no. 1:120-135. PNWD-SA-7031. doi:10.1016/j.jmr.2005.11.013