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The effect of hydration on the mobility of polysaccharides in onion cell-wall material (CWM) was studied by solid-state NMR. The application of proton T-1 rho, carbon T-1 relaxation measurements, and 2D-WISE (wideline separation) experiments led to a coher ...
tBu2PP:P(Me)tBu2 reacts with [Fe2(CO)9] to give [m-(1,2,3:4-h-tBu2PPPPtBu2){Fe(CO)3}{Fe(CO)4}] (I) and [trans-(tBu2MeP)2Fe(CO)3] (II). With [(h2-C8H14)2Fe(CO)3] in addn. to [m(1,2,3:4-h-tBu2PPPPtBu2){Fe(CO)2PMetBu2}{Fe(CO)4}] and II also [(m-PtBu2){m-P-Fe( ...
Taking advantage of the Curie contribution to the relaxation of the protons in the Tb(III) complex, and the quadrupolar relaxation of the 17O and 2H nuclei on the Eu(III) complex, the effect of the internal motion of the water molecule bound to [Ln(DOTAM)( ...
A new global analysis of EPR, 17O NMR relaxation and chemical shift and 1H NMRD profiles with physically meaningful parameters for [Gd(DOTA)(H2O)]− and for [Gd(DTPA)(H2O)]2− in aqueous solution is presented (DOTA=1,4,7,10-tetraaza-1,4,7,10-tetrakis(carboxy ...
he structure and dynamics of the surrounding water were studied through molecular dynamics (MD) simulations for several GdIII polyaminocarboxylate and polyaminophosphonate complexes in aqueous solution. The radial distribution functions (rdf) show that a f ...
Selective modification of zirconium alkoxide by acetic acid or acetylacetone was used in solution processing of PZT Pb(Zr,Ti)O-3 thin films by 2-methoxyethanol route. EXAFS results clearly show a decrease of Zr-O-Zr links in the acetic acid modified PZT so ...
THE exchange of metal ions between an oxide mineral surface and water occurs in a wide range of processes, including corrosion(1), the breakdown, of inhaled dusts(2,3), soil formation(4) and the cycling of toxic substances in the environment(5). In studies ...
Recent neutron-diffraction studies on dilute solutions have shown that a change in coordination numbers from nine to eight water molecules in the first hydration sphere occurs when going from the light to the heavy lanthanide (III) ions. To acquire a deepe ...
4-benzoylpyridine thiosemicarbazone (H(4)Bz(4)DH) and N(4')-phenyl-4-benzoylpyridine thiosemicarbazone (H4Bz4Ph) were obtained and fully characterized by infrared, UV and NMR spectroscopies. The assignment of the NMR signals was made by using DEPT135 and t ...
Since the first facile synthesis of Ru(H2O)(6)(2) was published at the beginning of the eighties, several Ru-II aqueous inorganic and organometallic complexes were described, showing the increasing interest in this kind of compound due to potential ...
