Recently, Garbow, Weitekamp, and Pines introduced a new approach to homonuclear broadband decoupling (I). Independently, a closely related experiment has been proposed for semiselective heteronuclear J spectroscopy (2). The two types of experiments have the common feature that all protons which are not directly attached to a 13C nucleus experience an effect as if a nonselective 180” pulse were ...

Abstract. The radio-frequency-driven recoupling (RFDR) pulse sequence is used in magic-angle spinning (MAS) NMR to recouple homonuclear dipolar interactions. Here we show simultaneous of both the heteronuclear and interactions by applying RFDR pulses on two channels. We demonstrate method, called HETeronuclear (HET-RFDR), microcrystalline SH3 samples at 10 55.555 kHz MAS. Numerical simulations ...

Recent multiple-quantum MAS NMR experiments have shown that a change in the rotor phase (and, hence, in the Hamiltonian) between the excitation and reconversion periods can lead to informative spinning-sideband patterns. However, such "rotor encoding" is not limited to multiple-quantum experiments. Here it is shown that longitudinal magnetization can also be rotor-encoded. Both homonuclear and ...

Heteronuclear complexation in the Fe(II)–Fe(III)-Mn(II)CH 3 COOH-H 2 O system at 318 K and ionic strength of 1.0 mol/l was studied by Clark-Nikolsky oxidation potential method. The formation complexes composition: [FeL(H O) 5 ] 2+ ; [FeLOH(H 4 + [Fe IIIМ n II L(H 4+ L(OH) (H 9 [Fe(L) 0 [Fe(L)(OH) - , two which are heteronuclear. conditions for forming dominating coordination compounds an aqueou...

We report on the creation of ultracold heteronuclear molecules assembled from fermionic 40K and bosonic 87Rb atoms in a 3D optical lattice. Molecules are produced at a heteronuclear Feshbach resonance on both the attractive and the repulsive sides of the resonance. We precisely determine the binding energy of the heteronuclear molecules from rf spectroscopy across the Feshbach resonance. We cha...

in order to represent the potential energy function over the whole range of r, many potentialenergy functions have been proposed. in the present paper, we employ many potential energyfunctions, to use numerov method for solving the nuclear schrödinger equation for the ifmolecule, as an example of a heteronuclear diatomic molecules. then we determine thespectroscopic constants eω , e e x ω , e b...

Two-dimensional (2D) covariance NMR spectroscopy, which has originally been established to extract homonuclear correlations (HOMCOR), is extended to include heteronuclear correlations (HETCOR). In a (13)C/(15)N 2D chemical shift correlation experiment, (13)C and (15)N signals of a polycrystalline sample of (13)C, (15)N-labeled amino acid are acquired simultaneously using a dual-receiver NMR sys...