title: Indirectly detected heteronuclear correlation solid-state NMR spectroscopy of naturally abundant 15N nuclei.
abstract: Two-dimensional indirectly detected through-space and through-bond (1)H{(15)N} solid-state NMR experiments utilizing fast magic angle spinning (MAS) and homonuclear multipulse (1)H decoupling are evaluated. Remarkable efficiency of polarization transfer can be achieved at a MAS rate of 40 kHz by both cross-polarization and INEPT, which makes these methods applicable for routine characterizations of natural abundance solids. The first measurement of 2D (1)H{(15)N} HETCOR spectrum of natural abundance surface species is also reported.
authors.affiliation: U.S. DOE Ames Laboratory, Ames, IA 50011-3020, USA; Department of Chemistry, Iowa State University, Ames, IA 50011-3020, USA.
authors.forename: Stacey M
authors.initials: SM
authors.lastname: Althaus
authors.affiliation: U.S. DOE Ames Laboratory, Ames, IA 50011-3020, USA; Department of Chemistry, Iowa State University, Ames, IA 50011-3020, USA.
authors.forename: Kanmi
authors.initials: K
authors.lastname: Mao
authors.affiliation: Agilent Technologies, 900 South Taft, Loveland, CO 80537, USA.
authors.forename: John A
authors.initials: JA
authors.lastname: Stringer
authors.affiliation: Department of Chemistry, Iowa State University, Ames, IA 50011-3020, USA.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kobayashi
authors.affiliation: U.S. DOE Ames Laboratory, Ames, IA 50011-3020, USA; Department of Chemistry, Iowa State University, Ames, IA 50011-3020, USA. Electronic address: mpruski@iastate.edu.
authors.forename: Marek
authors.initials: M
authors.lastname: Pruski
keywords: Fast MAS; HETCOR; INEPT; Indirect detection; J-coupling; Mesoporous silica; Solid-state (15)N NMR