1. Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
2. Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, Washington 99164, USA
3. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
4. Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
5. National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
6. Peter A. Rock Thermochemistry Laboratory and NEAT ORU, University of California Davis, Davis, California 95616, USA