1. aNational Institute for Materials Advancement, 1204 Research Road, Pittsburg State University, Pittsburg, Kansas 66762, USA
2. bDepartment of Chemistry, 1701 South Broadway Street, Pittsburg State University, Pittsburg, Kansas 66762, USA
3. bDepartment of Chemistry, 1701 South Broadway Street, Pittsburg State University, Pittsburg, Kansas 66762, USA ramguptamsu@gmail.com