کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5407879 1393240 2006 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-dimensional hyperfine sublevel correlation spectroscopy: Powder features for S = 1/2, I = 1
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Two-dimensional hyperfine sublevel correlation spectroscopy: Powder features for S = 1/2, I = 1
چکیده انگلیسی
The lineshapes of two-dimensional magnetic resonance spectra of disordered or partially ordered solids are dominated by ridges of singularities in the frequency plane. The positions of these ridges are described by a branch of mathematics known as catastrophe theory concerning the mapping of one 2D surface onto another. We systematically consider the characteristics of HYSCORE spectra for paramagnetic centers having electron spin S = 1/2 and nuclear spin I = 1 in terms of singularities using an exact solution of the nuclear spin Hamiltonian. The lineshape characteristics are considered for several general cases: zero nuclear quadrupole coupling; isotropic hyperfine but arbitrary nuclear quadrupole couplings; coincident principal axes for the nuclear hyperfine and quadrupole tensors; and the general case of arbitrary nuclear quadrupole and hyperfine tensors. The patterns of singularities in the HYSCORE spectra are described for each case.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 179, Issue 1, March 2006, Pages 120-135
نویسندگان
, ,