**Author details**

Saad Hmoud Alotaibi1 and Awad Abdalla Momen1,2\*

1 Department of Chemistry, Turabah University College, Taif University, Saudi Arabia

2 Department of Chemistry, College of Industrial and Applied Science, University of Bahri, Sudan

\*Address all correspondence to: aamomena@yahoo.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
