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Updated: Oct 26, 2025

Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
Published on: September 8, 2016
Sulfonate improves water solubility and cell selective toxicity and alters the lysozyme binding activity of half
Ahmed M Mansour1, Krzysztof Radacki2, Ola R Shehab1
1Department of Chemistry, Faculty of Science, Cairo University, Gamma Street, Giza, Cairo 12613, Egypt. mansour@sci.cu.edu.eg inorganic_am@yahoo.com.
Abstract:
Introduction of the propyl-sulfonic acid group at N1 of the coordinated 2-(2-pyridyl)benzimidazole ligand (L) in [RhCl(η5-C5Me5)L](CF3SO3) gives rise to a water-soluble complex, which can bind to the model protein lysozyme via non-covalent interactions. The complex shows selective moderate toxicity against Cryptococcus neoformans (MIC = 21.6-43.3 μM) and exhibits no cytotoxicity to healthy HEK293 cells.
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