Yayınlanmış 1 Ocak 2015
| Sürüm v1
Dergi makalesi
Açık
Synthesis and anion binding properties of a urea-based molecular cleft
Oluşturanlar
- 1. Jackson State Univ, Dept Chem & Biochem, Jackson, MS 39217 USA
- 2. Univ Oklahoma, Dept Chem & Biochem, Norman, OK 73019 USA
Açıklama
A new urea-based molecular cleft (L) derived from propylene-linked dipodal amine has been synthesized and its binding affinities for anions have been investigated by H-1 NMR and UV-vis spectroscopic titrations in DMSO. The receptor has been shown to bind F-, HSO4-, H2PO4-, and AcO- in a 1:1 binding mode via hydrogen bonding interactions, providing the highest binding constant for F-. In addition, the new cleft shows a naked-eye color change in the presence of F- in DMSO. The interactions of L with fluoride have also been evaluated by theoretical calculations based on density functional theory (DFT), revealing that the cleft encapsulates a fluoride via four NH center dot center dot center dot F- and two CH center dot center dot center dot F- bonds. (C) 2014 Elsevier Ltd. All rights reserved.
Dosyalar
bib-b3e97370-ea0d-439c-ba0b-9da23d8d0f1c.txt
Dosyalar
(226 Bytes)
| Ad | Boyut | Hepisini indir |
|---|---|---|
|
md5:bae73f68e554c4f022d4162953dc4f95
|
226 Bytes | Ön İzleme İndir |