Khalid A. Alrashidi
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Khalid A. Alrashidi has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Abdulaziz A. Alayyafi
Department of Chemistry, University College in Al‐Qunfudhah Umm Al‐Qura University Mecca Saudi Arabia
1 shared publication - Adnan Salim Abu-Surrah
Department of Chemistry Faculty of Science The Hashemite University Zarqa 13133 Jordan
1 shared publication - Hajem Bataineh
Department of Chemistry, Faculty of Science The Hashemite University Zarqa Jordan
1 shared publication - Hassan Abul-Futouh
Department of Chemistry, Faculty of Science, The Hashemite University, Zarqa, Jordan
1 shared publication Helmar Görls
Institute for Inorganic and Analytical Chemistry Friedrich Schiller University Jena Jena Germany
1 shared publication- Sara J. Abaalkhail
Department of Pharmacy Al‐Zaytoonah University of Jordan Amman Jordan
1 shared publication
Latest Publications
- 8 May 2025
- Published by Wiley in Applied Organometallic Chemistry
- Vol. 39 (6)
Phosphine‐Modified [FeFe]‐Hydrogenase Mimics With Various –S(CH2)nS– Linker Lengths (n = 4, 5, 7, 8): Impact of PPh3 Ligand on Structure, Redox Properties, and Catalytic Activity
In this study, we synthesized a series of PPh3‐substituted diiron complexes with the general formula [Fe2(CO)5PPh3{μ‐S(CH2)nS}] (n = 4 (1), 5 (2), 7 (3), 8 (4)), bearing structural similarities to the active site of [FeFe]‐hydrogenase. These complexes were derived from their parent analogues, [Fe2(CO)6{μ‐S(CH2)nS}] (n = 4, 5, 7, 8), through ligand substitution. Their formation was verified through a combination of spectroscopic methods, elemental analysis, and X‐ray crystallography, confirming their structural integrity and composition. Moreover, we examined how the PPh3 ligand and the varying lengths of the dithiolato linker in complexes 1–4 affect their redox properties and catalytic performance. Using cyclic voltammetry, we evaluated their electrochemical behavior and proton reduction activity in the presence of acetic acid (AcOH). Consequently, the reduction potential shifts of complexes 1–4, in comparison to their precursors, followed the sequence: 3 > 2 > 1 > 4. Furthermore, at the highest AcOH concentration established, complex 3 demonstrates the most significant current enhancement (icat/ip = 26.2). In comparison, complexes 1, 2, and 4 exhibit relatively similar icat/ip values of 13.6, 13.0, and 11.9, respectively.
- 8 May 2025
- Published by Wiley in Applied Organometallic Chemistry
- Vol. 39 (6)
Phosphine‐Modified [FeFe]‐Hydrogenase Mimics With Various –S(CH2)nS– Linker Lengths (n = 4, 5, 7, 8): Impact of PPh3 Ligand on Structure, Redox Properties, and Catalytic Activity
In this study, we synthesized a series of PPh3‐substituted diiron complexes with the general formula [Fe2(CO)5PPh3{μ‐S(CH2)nS}] (n = 4 (1), 5 (2), 7 (3), 8 (4)), bearing structural similarities to the active site of [FeFe]‐hydrogenase. These complexes were derived from their parent analogues, [Fe2(CO)6{μ‐S(CH2)nS}] (n = 4, 5, 7, 8), through ligand substitution. Their formation was verified through a combination of spectroscopic methods, elemental analysis, and X‐ray crystallography, confirming their structural integrity and composition. Moreover, we examined how the PPh3 ligand and the varying lengths of the dithiolato linker in complexes 1–4 affect their redox properties and catalytic performance. Using cyclic voltammetry, we evaluated their electrochemical behavior and proton reduction activity in the presence of acetic acid (AcOH). Consequently, the reduction potential shifts of complexes 1–4, in comparison to their precursors, followed the sequence: 3 > 2 > 1 > 4. Furthermore, at the highest AcOH concentration established, complex 3 demonstrates the most significant current enhancement (icat/ip = 26.2). In comparison, complexes 1, 2, and 4 exhibit relatively similar icat/ip values of 13.6, 13.0, and 11.9, respectively.