Preparation, crystal structure and luminescent properties of the (6,3) type network supramolecular lanthanide picrate complexes with 2,2'-[(1,2-naphthalene)bis(oxy)]bis[N-(phenylmethyl)]acetamide

Journal Article · Sun Nov 15 00:00:00 EST 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.09.005· OSTI ID:21372395

Qin, Wang; Kuanzhen, Tang; Weisheng, Liu ^[1]; Minyu, Tan ^[1]

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

Solid complexes of lanthanide picrates with a new podand-type ligand, 2,2'-[(1,2-naphthalene)bis(oxy)]bis[N-(phenylmethyl)]acetamide (L) have been prepared and characterized by elemental analysis, conductivity measurements, IR and electronic spectroscopies. The crystal and molecular structures of the coordination polymer {l_brace}[Eu{sub 2}L{sub 3}(Pic){sub 6}].(CHCl{sub 3}){sub 3}.(H{sub 2}O){sub 0.5}{r_brace}{sub n} have been determined by single-crystal X-ray diffraction, and the structure displays a two-dimensional honeycomb-like framework in the ab plane, which can be regarded as a (6,3) topological network with europium atoms acting as 'three-connected' centers. Furthermore, the coordination layers are linked by the intermolecular hydrogen bonds to form a three-dimensional (3-D) netlike supermolecule. Under excitation, Eu complex exhibited characteristic emissions. The lowest triplet state energy level of the ligand indicates that the triplet state energy level of the ligand matches better to the resonance level of Eu(III) than Tb(III) ion. - Graphical abstract: The (6,3) type network supramolecular luminescent lanthanide picrate complexes {l_brace}Ln{sub 2}L{sub 3}(Pic){sub 6}{r_brace}{sub n} (L=2,2'-[(1,2-naphthalene)bis(oxy)]bis[N-(phenylmethyl)]acetamide) displaying a two-dimensional honeycomb-like framework have been designed and prepared.

• OSTI ID: 21372395
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 11; Other Information: DOI: 10.1016/j.jssc.2009.09.005; PII: S0022-4596(09)00425-3; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETAMIDE
CRYSTAL STRUCTURE
EUROPIUM COMPLEXES
EUROPIUM IONS
INFRARED SPECTRA
LAYERS
LIGANDS
LUMINESCENCE
MOLECULAR STRUCTURE
MONOCRYSTALS
NAPHTHALENE
SPECTROSCOPY
TERBIUM IONS
TOPOLOGY
X-RAY DIFFRACTION
AMIDES
AROMATICS
CHARGED PARTICLES
COHERENT SCATTERING
COMPLEXES
CONDENSED AROMATICS
CRYSTALS
DIFFRACTION
EMISSION
HYDROCARBONS
IONS
MATHEMATICS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTON EMISSION
RARE EARTH COMPLEXES
SCATTERING
SPECTRA