1. Department of Chemistry, Rice University, Houston, Texas 77251-1892, United States
2. Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
3. Center of Excellence for Advanced Materials Research
(CEAMR), King Abdulaziz University, Jeddah 21589, Saudi Arabia
4. Department of Physics and Astronomy, Rice University, Houston, Texas 77251-1892, United States