title: Constant-time method for measuring inter-nuclear distances in static powders.
abstract: We present a constant-time modification of a single-echo 2D technique for measuring the constants of spin-spin interaction between heteronuclei in static powder samples. Compared to the sequence with variable echo time, the new scheme provides higher resolution. Another important improvement is a possibility to eliminate the central peak from a natural-abundance matrix. The experimental results are presented for glycine-[13Calpha, 15N] and glycine-[13C', 15N].
authors.affiliation: Department of Chemistry, Kent State University, Kent, OH 44242-0001, USA.
authors.forename: Jae-Seung
authors.initials: JS
authors.lastname: Lee
authors.forename: A K
authors.initials: AK
authors.lastname: Khitrin
mesh_terms: D002247:Carbon Isotopes; D005998:Glycine / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009587:Nitrogen Isotopes; D011208:Powders / Q000737:chemistry*; D013997:Time Factors
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes; D011208:Powders; D005998:Glycine