The publisher regrets that this article was published with errors to the author details. The correct information for this article is reprinted below: M. Ghaemia,*, A. Gholamib, R.B. Moghaddamc aDepartment of Chemistry, Science Faculty, Golestan University, 49138-15739, Gorgan, Iran bDepartment of Chemistry, Science Faculty, Tarbiat Modares University, 14115-175, Tehran, Iran cDepartment of Chemistry, K. N. Toosi University of Technology, 15875-4416, Tehran, Iran(* Corresponding author. Tel.: +98 171 4427173; fax: +98 171 4427040, e-mail:ghaemi_m@gmx.de)