About the Authors

Omar bin Shawkataly

omarsa@usm.my

Affiliation Chemical Sciences Programme, School of Distance Education, Universiti Sains Malaysia, 11800, Penang, Malaysia

Chin-Ping Goh

Affiliation Chemical Sciences Programme, School of Distance Education, Universiti Sains Malaysia, 11800, Penang, Malaysia

Abu Tariq

Affiliation Chemical Sciences Programme, School of Distance Education, Universiti Sains Malaysia, 11800, Penang, Malaysia

Imthyaz Ahmad Khan

Affiliation Chemical Sciences Programme, School of Distance Education, Universiti Sains Malaysia, 11800, Penang, Malaysia

Hoong-Kun Fun

Affiliations X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800, Penang, Malaysia, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia

Mohd Mustaqim Rosli

Affiliation X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800, Penang, Malaysia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ObS CPG AT IAK. Performed the experiments: CPG AT MMR. Analyzed the data: ObS CPG AT IAK HKF MMR. Contributed reagents/materials/analysis tools: ObS HKF. Wrote the paper: ObS CPG AT HKF.