[1] Univ Texas Pan Amer, Dept Chem, Edinburg, TX 78539 USA
[2] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130023, Peoples R China
[3] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA
[4] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA
[5] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA