TY - JOUR
T1 - Structure and luminescence studies of tris(nitrato-O,O′)bis(2, 2′-bipyridyl-N,N′)dysprosium(III) complex
AU - Kusrini, Eny
AU - Saleh, Muhammad I.
AU - Fun, Hoong K.
PY - 2010/10
Y1 - 2010/10
N2 - The title compound, [Dy(NO3)3(bipy)2], is isostructural with the La, Pr, Nd, Eu and Lu analogues where bipy=2, 2′-bipyridyl. The Dy complex was crystallized in orthorhombic with space group Pbcn. The Dy(III) ion was coordinated with the two bipy ligands and three nitrate anions giving a ten coordination number. Measurements of the molar conductance in ethanol and water solutions indicate that the complex is non-electrolyte. A comparative study of the emission of [Dy(NO3) 3(bipy)2] complex with those of the adduct mixture of bipy and Dy at a 1:1 ratio, has been investigated. In the solid state, photoluminescence (PL) spectrum of the complex had sharp emission bands corresponding to the 4F9/2→6H 15/2 (476.5 and 482 nm), 4F9/2→ 6H13/2(572.6 and 573.8 nm), 4F 9/2→6H11/2 (661.6 nm) and 4H3/2→6H15/2 (961.0 nm) transitions. The hypersensitive peak of the complex has the yellow emission stronger than the blue emission in the solid state as well as in the solution. The complex has a good thermal stability due to the role of π-π interactions stacking.
AB - The title compound, [Dy(NO3)3(bipy)2], is isostructural with the La, Pr, Nd, Eu and Lu analogues where bipy=2, 2′-bipyridyl. The Dy complex was crystallized in orthorhombic with space group Pbcn. The Dy(III) ion was coordinated with the two bipy ligands and three nitrate anions giving a ten coordination number. Measurements of the molar conductance in ethanol and water solutions indicate that the complex is non-electrolyte. A comparative study of the emission of [Dy(NO3) 3(bipy)2] complex with those of the adduct mixture of bipy and Dy at a 1:1 ratio, has been investigated. In the solid state, photoluminescence (PL) spectrum of the complex had sharp emission bands corresponding to the 4F9/2→6H 15/2 (476.5 and 482 nm), 4F9/2→ 6H13/2(572.6 and 573.8 nm), 4F 9/2→6H11/2 (661.6 nm) and 4H3/2→6H15/2 (961.0 nm) transitions. The hypersensitive peak of the complex has the yellow emission stronger than the blue emission in the solid state as well as in the solution. The complex has a good thermal stability due to the role of π-π interactions stacking.
KW - Crystal structure
KW - Dysprosium 2,2′-Bipyridyl
KW - Photoluminescence
UR - http://www.scopus.com/inward/record.url?scp=77955417373&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2010.04.015
DO - 10.1016/j.jlumin.2010.04.015
M3 - Article
AN - SCOPUS:77955417373
SN - 0022-2313
VL - 130
SP - 1813
EP - 1817
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - 10
ER -