D. Hugh Powell

Structural and Dynamic Parameters Obtained from ¹⁷O NMR, EPR, and NMRD Studies of Monomeric and Dimeric Gd³⁺ Complexes of Interest in Magnetic Resonance Imaging:  An Integrated and Theoretically Self-Consistent Approach¹

D. Hugh Powell, O.M.N. Dhubhghaill, Dirk Pubanz et al. · Journal of the American Chemical Society · 1996 · 644 citations · Full text

Natural Sciences, Biophysics, Chemistry +17

First Solvation Shell of the Cu(II) Aqua Ion: Evidence for Fivefold Coordination

Alfredo Pasquarello, Ingrid Petri, Philip S. Salmon et al. · Science · 2001 · 396 citations · Full text

Natural Sciences, Chemistry, Physics +17

Water-exchange, electronic relaxation, and rotational dynamics of the MRI contrast agent [Gd(DTPA-BMA)(H2O)] in aqueous solution: a variable pressure, temperature, and magnetic field oxygen-17 NMR study

Gabriel González, D. Hugh Powell, Véronique Tissières et al. · The Journal of Physical Chemistry · 1994 · 139 citations · Full text

Natural Sciences, Biophysics, Chemistry +16

Water exchange on [Gd(H₂O)₈]³⁺ and [Gd(PDTA)(H₂O)₂]^‐ in aqueous solution: A variable‐pressure, ‐temperature and ‐magnetic field ¹⁷O NMR study

Károly Micskei, D. Hugh Powell, Lothar Helm et al. · Magnetic Resonance in Chemistry · 1993 · 138 citations · Full text

Natural Sciences, Biochemistry, Chemistry +17

17O nuclear magnetic resonance in aqueous solutions of Cu2+ : The combined effect of Jahn–Teller inversion and solvent exchange on relaxation rates

D. Hugh Powell, Lothar Helm, André E. Merbach · The Journal of Chemical Physics · 1991 · 134 citations · Full text

Natural Sciences, Chemistry, Physics +16