Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Synthetic, structural, and luminescence study of uranyl coordination polymers containing chelating terpyridine and trispyridyltriazine ligands

Thangavelu, Sonia G., Pope, Simon J. A. and Cahill, Christopher L. 2015. Synthetic, structural, and luminescence study of uranyl coordination polymers containing chelating terpyridine and trispyridyltriazine ligands. Crystengcomm 17 (32) , pp. 6236-6247. 10.1039/C5CE00984G

Full text not available from this repository.

Abstract

Seven uranyl coordination polymers [(UO2)(BrC8H3O4)(C15H11N3)] (1), [(UO2)(ClC8H3O4)(C15H11N3)] (2), [(UO2)(BrC8H3O4)(C18H12N6)]·H2O (3), [(UO2)(ClC8H3O4)(C18H12N6)]·2H2O (4), [(UO2)(C8H3IO4)(C18H12N6)]·2C3H7O (5), [(UO2)(C9H6O4)(C18H12N6)]·H2O (6), and [(UO2)(C6H2O4S)(C18H12N6)]·2H2O (7) containing N-donor ligands 2,2′:6′,2′′-terpyridine (TPY) and 2,4,6-tripyridyl s-triazine (TPTZ); and O-donor linkers thiophene 2,5-dicarboxylic acid (TDC) and X-1,4-benzene dicarboxylic acid (X-BDC, where X = Me, Cl, Br, I) were synthesized and characterized using single crystal X-ray diffraction (SC-XRD), powder X-ray diffraction (PXRD), and fluorescence spectroscopy. Each compound crystallizes as binuclear pseudo dimers containing a UO22+ pentagonal bipyramidal primary building unit. Fluorescence spectra of 1–4, and 6–7 show characteristic UO22+ emission whereas 5 is non-emissive. Red shifts within the emission of 1–4 are noted as a function of N-donor ligands TPY and TPTZ whereas emission shifts are not observed in TPTZ bearing compounds (3, 4, 6, 7) containing different O-donor linkers. Luminescent lifetimes of 1–7 were obtained and fitted with either bi-exponential or tri-exponential components.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1466-8033
Date of Acceptance: 10 July 2015
Last Modified: 04 Jun 2017 08:16
URI: http://orca.cf.ac.uk/id/eprint/75148

Citation Data

Cited 12 times in Google Scholar. View in Google Scholar

Cited 12 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item