Amilan Jose, D. ; Krishna Kumar, D. ; Ganguly, Bishwajit ; Das, Amitava (2005) Urea and thiourea based efficient colorimetric sensors for oxyanions Tetrahedron Letters, 46 (32). pp. 5343-5346. ISSN 0040-4039
Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.tetlet.2005.06.011
Abstract
Urea and thiourea based receptors 1 and 2 bind H2PO4-, OH-, CH3CO2-, and PhCO2- ions in an acetonitrile/DMSO (9:1, v/v) medium. Binding of these anions causes an appreciable change in the visible region of the spectrum, which can be detected by the naked eye. The affinity constant for H2PO4- is higher by about an order of magnitude as compared to the other oxyanions mentioned above. Ab initio calculations predicted tweezer-like binding modes for receptors 1 and 2 with these anions and a higher affinity toward H2PO4- was predicted in acetonitrile.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Oxyanions; Sensor; Urea and Thiourea Derivatives; Naked Eye Detection; Ab Initio Calculation |
| ID Code: | 59920 |
| Deposited On: | 07 Sep 2011 14:18 |
| Last Modified: | 07 Sep 2011 14:18 |
Repository Staff Only: item control page
