The NMR experiments for Glu revealed downfield shifts of all protons as pH values decrease from 11.21 to 2.85.doi:10.1080/00958970802353660Yahia Z. HamadaHerman HolyfieldKhalid RosliTheodore BurkeyJournal of Coordination ChemistryHamada YZ, Holyfield H, Rosli K. (2009). Equilibrium models of Cr3+ ...
proton NMR field shiftaqueous solutionsCu 2+There are presented measurements of the NMR field shifts for aqueous protons in aqueous solutions containing paramagnetic inorganic compounds of Cu 2+ , Cr 3+ , Fe 3+ and Mn 2+ ions. The measurements have been performed on samples in the form of ...
Thermoluminescence (TL) studies were performed in the pristine sample, with no TL signal being observed in the spectral region corresponding to the Cr3+emission. In agreement with the IBIL study, upon ion irradiation (with either protons or helium ions), this TL emission is activated. Moreover,...
The O-H band spectra suggest the presence of protons in octahedral site vacancies which appear for n >1. The spectra for Cr 3+ indicate clearly that these ions occupy only octahedral sites. However, the effective trigonal field, which varies with n , causes the major absorption bands to ...
0.404 g light yellow solid of P2 was obtained in a yield of 43%. The DP of P2 chain by1H NMR analysis was determined to be 48 by comparing the integrated signal of the protons of –NH– (1H, –NH–) at 9.82 ppm and the protons in the main chain of TTC (3H, –(CH2)10CH3) ...
The building blocks are mere electrons, protons and neutrons, their collective behavior has been shown to lead to a variety of astonishing phenomena. Classic examples of such quantum correlated systems are superconductivity [ 1 ], superfluidity [ 2 ] and the fractional quantum Hall effect (FQHE)...