ArticleInorganic chemistry2013
Silver(I) complex formation with cysteine, penicillamine, and glutathione.
Article in Inorganic chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
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- A review of metal ion complexation/decomplexation reaction-based fluorescent sensors for detecting biological thiols.RSC advances · 2025Review
- Low toxicity of dissolved silver from silver-coated titanium dental implants to human primary osteoblast cells.Toxicology reports · 2024Article
- Direct, Broad-Spectrum Antimicrobial Activity of AgMaterials (Basel, Switzerland) · 2024Article
- Antioxidant-related enzymes and peptides as biomarkers of metallic nanoparticles (eco)toxicity in the aquatic environment.Chemosphere · 2024Review
- Zn(II) to Ag(I) Swap in Rad50 Zinc Hook Domain Leads to Interprotein Complex Disruption through the Formation of Highly Stable AgInorganic chemistry · 2023Article
- Assessing the influence of microwave-assisted synthesis parameters and stabilizing ligands on the optical properties of AIS/ZnS quantum dots.Scientific reports · 2022Article
- Synthesis of N-acyl sulfenamides via copper catalysis and their use as S-sulfenylating reagents of thiols.Nature communications · 2022Article
- Sequential, low-temperature aqueous synthesis of Ag-In-S/Zn quantum dotsJournal of materials chemistry. B · 2022Article
- Circularly polarised luminescence in an RNA-based homochiral, self-repairing, coordination polymer hydrogel.Journal of materials chemistry. C · 2022Article
- Structures of Silver Fingers and a Pathway to Their Genotoxicity.Angewandte Chemie (International ed. in English) · 2022Article
- Revisiting Fluoride in the Twenty-First Century: Safety and Efficacy Considerations.Frontiers in oral health · 2022Article
- Effect of Nanoparticle Synthetic Conditions on Ligand Coating Integrity and Subsequent Nano-Biointeractions.ACS applied materials & interfaces · 2021Article
- First principle approach to elucidate transport properties through L-glutamic acid-based molecular devices using symmetrical electrodes.Journal of molecular modeling · 2020Article
- Crystal structure ofActa crystallographica. Section E, Crystallographic communications · 2017Article
- Ag Nanoparticles (Ag NM300K) in the Terrestrial Environment: Effects at Population and Cellular Level in Folsomia candida (Collembola).International journal of environmental research and public health · 2015Article
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5 authors.
Funding
Abstract
The complex formation between silver(I) and cysteine (H2Cys), penicillamine (H2Pen), and glutathione (H3Glu) in alkaline aqueous solution was examined using extended X-ray absorption fine structure (EXAFS) and (109)Ag NMR spectroscopic techniques. The complexes formed in 0.1 mol dm(-3) Ag(I) solutions with cysteine and penicillamine were investigated for ligand/Ag(I) (L/Ag) mole ratios increasing from 2.0 to 10.0. For the series of cysteine solutions (pH 10-11) a mean Ag-S bond distance of 2.45 ± 0.02 Å consistently emerged, while for penicillamine (pH 9) the average Ag-S bond distance gradually increased from 2.40 to 2.44 ± 0.02 Å. EXAFS and (109)Ag NMR spectra of a concentrated Ag(I)-cysteine solution (C(Ag(I)) = 0.8 mol dm(-3), L/Ag = 2.2) showed a mean Ag-S bond distance of 2.47 ± 0.02 Å and δ((109)Ag) 1103 ppm, consistent with prevailing, partially oligomeric AgS3 coordinated species, while for penicillamine (C(Ag(I)) = 0.5 mol dm(-3), L/Ag = 2.0) the mean Ag-S bond distance of 2.40 ± 0.02 Å and δ((109)Ag) 922 ppm indicate that mononuclear AgS2 coordinated complexes dominate. For Ag(I)-glutathione solutions (C(Ag(I)) = 0.01 mol dm(-3), pH ∼11), mononuclear AgS2 coordinated species with a mean Ag-S bond distance of 2.36 ± 0.02 Å dominate for L/Ag mole ratios from 2.0 to 10.0. The crystal structure of the silver(I)-cysteine compound (NH4)Ag2(HCys)(Cys)·H2O (1) precipitating at pH ∼10 was solved and showed a layer structure with both AgS3 and AgS3N coordination to the cysteinate ligands. A redetermination of the crystal structure of Ag(HPen)·H2O (2) confirmed the proposed digonal AgS2 coordination environment to bridging thiolate sulfur atoms in polymeric intertwining chains forming a double helix. A survey of Ag-S bond distances for crystalline Ag(I) complexes with S-donor ligands in different AgS2, AgS2(O/N), and AgS3 coordination environments was used, together with a survey of (109)Ag NMR chemical shifts, to assist assignments of the Ag(I) coordination in solution.
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