Structure variation and luminescence properties of lanthanide complexes with 1,9-bis [2-(2'-picolylaminoformyl)-1,4,7,9-tetraoxadecane

Journal Article · Wed Apr 15 04:00:00 EDT 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.12.025· OSTI ID:21370346

Xueqin, Song ^[1]; Zhipeng, Zang ^[1]; Yujie, Zhang ^[2]

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1. College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 (China)
2. School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070 (China)

Using 1,9-salicylamide bissubstituted oxadecane ligand, 1,9-bis [2-(2'-picolylaminoformyl)-1,4,7,9-tetraoxadecane (L), two novel lanthanide complexes have been prepared and well characterized by means of elemental analysis, IR spectroscopy, UV-vis spectroscopy, TGA analysis and single-crystal X-ray diffraction. {l_brace}[PrL(NO{sub 3}){sub 3}(H{sub 2}O){sub 2}].CH{sub 3}OH{r_brace}{sub n} is a 1D zigzag polymer with three-dimensional supramolecular structure formed by hydrogen bonds, while [EuL(NO{sub 3}){sub 3}(H{sub 2}O)]{sub n} is a linear coordination polymer and present an interesting supramolecular double chain, which are very different from the structure of terbium complex reported before. The result reported herein demonstrated that steric crowding associated with the decreasing lanthanide ion radius causes changes of the conformation of the ligand as well as structures. Luminescence studies for the Eu(III) complexes demonstrated that the salicylamide ligand also exhibits a good antennae effect for the Eu(III) ion due to efficient intersystem crossing and ligand-to-metal energy transfer and the Eu(III) ion is well shielded from the surrounding environment. - Graphical abstract: Structure variation and luminescence properties of lanthanide complexes with 1,9-bis [2-(2'-picolylaminoformyl)-1,4,7,9-tetraoxadecane.

• OSTI ID: 21370346
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 4 Vol. 182; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CHEMICAL ANALYSIS
COHERENT SCATTERING
COMPLEXES
CRYSTALS
DIFFRACTION
EMISSION
EUROPIUM COMPLEXES
GRAVIMETRIC ANALYSIS
INFRARED SPECTRA
LIGANDS
LUMINESCENCE
MONOCRYSTALS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOTON EMISSION
POLYMERS
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTH COMPLEXES
SCATTERING
SPECTRA
TERBIUM COMPLEXES
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
ULTRAVIOLET SPECTRA
X-RAY DIFFRACTION