Halogen Bonding Heteroditopic Materials for Cooperative Sodium Iodide Binding and Extraction.
Chemistry
; 27(59): 14600-14604, 2021 Oct 21.
Article
in En
| MEDLINE
| ID: mdl-34520586
ABSTRACT
A series of novel heteroditopic halogen bonding (XB) receptor functionalised silica based materials, containing mono- and bis-iodotriazole benzo-15-crown-5 groups are investigated for the cooperative binding and extraction of sodium halide ion-pair species from aqueous solution. Characterisation of the XB materials by CHN elemental analysis, 13 C CP/MASâ
NMR and ATR-FTIR spectroscopies confirms and quantifies the successful incorporation of the ion-pair receptor frameworks to the silica material. ICP-MS solid-liquid extraction studies demonstrate the bidentate XB functionalised material is capable of NaI extraction from water. Importantly, cooperative XB-mediated sodium halide ion-pair binding is determined to be crucial to the material's extraction capabilities, impressively demonstrating a two-fold enhancement in sodium iodide extraction efficiency relative to a heteroditopic hydrogen bonding receptor functionalised silica material analogue.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sodium Iodide
/
Halogens
Language:
En
Journal:
Chemistry
Journal subject:
QUIMICA
Year:
2021
Document type:
Article