[1] CSIC, Inst Ceram & Vidrio, Madrid 28049, Spain
[2] CUNY, Lehman Coll, Dept Chem, New York, NY 10468 USA
[3] William Paterson Univ, Dept Chem, Wayne, NJ 07470 USA
[4] Rutgers State Univ, Dept Mat Sci & Engn, Piscataway, NJ 08854 USA
[5] CUNY, Grad Ctr, PhD Program Chem & Biochem, New York, NY 10016 USA