5-(2-Mercaptoethyl)-1H-tetrazole: Facile Synthesis and Application for the Preparation of Water Soluble Nanocrystals and Their Gels
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
A facile method for the preparation of the novel capping ligand 5-(2-mercaptoethyl)-1H-tetrazole for the stabilization of water-soluble nanocrystals was developed. This effective synthetic procedure is based on the cycloaddition of sodium azide to 3,3′-dithiobis(propionitrile) followed by the reductive cleavage of a S−S bond with triphenylphosphine. The structure of the synthesized compound was confirmed by single-crystal X-ray analysis. A target tetrazole was successfully applied for the direct aqueous synthesis of CdTe and Au nanocrystals. CdTe nanocrystals capped with 5-(2-mercaptoethyl)-1H-tetrazole were found to reveal high photoluminescence efficiencies (up to 77 %). Nanocrystals capped with this tetrazole ligand are able to build 3D structures in a metal-ion-assisted gelation process in aqueous solution. Critical point drying of the as-formed hydrogels allowed the preparation of the corresponding aerogels, while preserving the mesoporous structure.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 14746-14752 |
Seitenumfang | 7 |
Fachzeitschrift | Chemistry - A European Journal |
Jahrgang | 22 |
Ausgabenummer | 41 |
Publikationsstatus | Veröffentlicht - 24 Aug. 2016 |
Peer-Review-Status | Ja |
Externe IDs
ORCID | /0000-0002-8827-2881/work/142232993 |
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Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- gels, nanocrystals, nitrogen heterocycles, porous materials, quantum dots