1. Departamento de Química Orgánica; Universidad de Cordoba; Campus de Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396 E-14014 Cordoba Spain
2. Department of Civil Engineering; The University of Hong Kong, Haking Wong Building; Pokfulam Road Hong Kong HK 852 P.R. China