Crystal Structure, and Magnetic and Fluorescence Properties of a New Terbium(III) Complex, [Tb(L)3(2,2´-bipy)(DMF)]·(2,2´-bipy)

Autor:	Li-Xia Fu, Ying-Qun Yang, Hong-Bo Tan, Shao-Hua Zhang
Rok vydání:	2013
Předmět:	Crystallography chemistry chemistry.chemical_element Terbium General Chemistry Crystal structure Fluorescence
Zdroj:	Zeitschrift für Naturforschung B. 68:1269-1272
ISSN:	1865-7117 0932-0776
DOI:	10.5560/znb.2013-3034
Popis:	A new Tb(III) complex, [Tb(L)3(2,2´-bipy)(DMF)]·(2,2´- bipy) (1), has been synthesized with 2-benzoylbenzoic acid (HL) and 2,2´-bipyridine (2,2´-bipy) as ligands. In 1, the Tb(III) ion is coordinated by nine atoms to give a distorted tri-capped trigonal-prismatic geometry. The magnetic and fluorescence properties of 1 are discussed. Compound 1 is paramagnetic in the temperature range of 300 - 24 K, and when the temperature decreases from 22 to 2 K, it exhibits weak ferromagnetism. The compound shows four intense fluorescence emission bands arising from the transitions of Tb3+: 5D4→7F6 (492 nm), 5D4→7F5 (546 nm), 5D4→7F4 (590 nm) and 5D4 →7F3 (622 nm) with an excitation wavelength of 315 nm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8fdd411f0d11da595e2d9032ca3eb3dc https://doi.org/10.5560/znb.2013-3034 Zobrazit plný text záznamu