The purpose of this report is to describe what progress was made in defining and explaining the phenomenon of NQR and to stress some functional roles of this type of release, as based on our own data and other observations.

Band 3 catalyzes the one-for-one exchange of monovalent anions across the red cell membrane. At least two anion binding sites have been postulated to exist on the transport unit: 1) a transport site that has been observed by saturation kinetics and by 35 Cl NMR studies of chloride binding, and 2) a 35Cl NMR-invisible inhibitory site that has been proposed to explain the inhibition of anion exch...

The Na(+)-pumping NADH:quinone oxidoreductase (Na(+)-NQR) is the main entrance for electrons into the respiratory chain of many marine and pathogenic bacteria. The enzyme accepts electrons from NADH and donates them to ubiquinone, and the free energy released by this redox reaction is used to create an electrochemical gradient of sodium across the cell membrane. Here we report the role of glyci...

The C1 NQR frequencies in MgTeCl6 • 6 H 2 0 , NiTeCl6 • 6 H 2 0 , and NiIrCl6 • 6 H 2 0 have been determined at various temperatures. These compounds form rhombohedral crystals with the space group R3, showing a single resonance line. The C1 NQR frequencies of the Te(IV) complexes exhibit an unusual positive temperature coefficient. The deuterated analogs of the Te(IV) complexes show a small fr...

NQR and NMR methods allow for the investigation of incommensurately modulated structure because the resonance frequencies change in space in such a way that they reflect the variation of the incommensurate (I) modulation. Much work has been carried out on the steady state of these systems, but dynamical studies are limited [1, 2]. The NQR spinlattice relaxation time Tj has been studied by us an...

Z. Naturforsch. 45a, 353-356 (1990); received August 25, 1989 The 1 N nuclear quadrupole resonance (NQR) of the cyanides in Ba[Fe(CN)sNO] • 3 H 2 0 (BNP) was observed between 77 and 293 K. Phase transitions exist at 118,131 (both weakly first order) and 233 K (second order). Most of the cyanides were perturbed by the structural changes except for one of the trans cyanides that was only affected...