Nitro-functionalization and luminescence quantum yield of Eu(III) and Tb(III) benzoic acid complexes

de Bettencourt-Dias A; Viswanathan S

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Nitro-functionalization and luminescence quantum yield of Eu(III) and Tb(III) benzoic acid complexes

机译：Eu（III）和Tb（III）苯甲酸配合物的硝基官能化和发光量子产率

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In our pursuit of luminescent lanthanide ion-based coordination polymers, we have isolated several complexes with nitrobenzoic acid ligands and characterized these by X-ray crystallography and luminescence spectroscopy. 2-Nitrobenzoic acid reacts with Eu(III) to form 1, which crystallizes in the P-1 space group, with a = 12.385( 3), b = 12.912( 3), c = 17.889(4) angstrom, a = 97.49( 3), beta = 109.64( 3) and gamma = 101.99(3)degrees. 3-Nitrobenzoic acid forms a one-dimensional coordination polymer with Eu( III), 2, which crystallizes in the triclinic space group P-1 with a = 9.7100( 19), b = 10.579( 2), c = 13.361( 3) angstrom, a = 77.41( 3), beta = 88.78( 3) and gamma = 88.16(3)degrees. Structures 3 and 4 correspond to the isostructural one-dimensional coordination polymers of Eu( III) and Tb(III), respectively, with the 4-nitrobenzoato anion. These crystallize in the triclinic space group P- 1 with a = 9.2242( 18), b = 15.102( 3), c = 18.587( 4) angstrom, alpha = 75.93( 3), beta = 82.88( 3) and gamma = 79.00( 3)degrees for 3 and a = 9.2692( 19), b = 15.369( 3), c = 18.353( 4) angstrom, alpha = 75.37( 3), beta = 81.32( 3) and gamma = 78.15( 3)degrees for 4. Potentiometry, absorption and NMR spectroscopy indicate that in solution only 1 : 1 species are present. All compounds are weakly luminescent as solids and the photophysics of solutions of ligands with Ln(III) in 1 : 1 stoichiometry were studied. Quantum yields around 1 and 3% for Eu( III)- and Tb( III)- containing methanolic solutions were measured.

机译：在我们追求基于发光镧系离子的配位聚合物时，我们分离了几种具有硝基苯甲酸配体的配合物，并通过X射线晶体学和发光光谱对其进行了表征。 2-硝基苯甲酸与Eu（III）反应形成1，在P-1空间群中结晶，a = 12.385（3），b = 12.912（3），c = 17.889（4）埃，a = 97.49 （3），β= 109.64（3）和γ= 101.99（3）度。 3-硝基苯甲酸与Eu（III）2形成一维配位聚合物，在三斜空间群P-1中结晶，其a = 9.7100（19），b = 10.579（2），c = 13.361（3）埃，a = 77.41（3），beta = 88.78（3）和γ= 88.16（3）度。结构3和4分别与Eu（III）和Tb（III）与4-硝基苯并氨基阴离子的同构一维配位聚合物。它们在三斜空间群P-1中结晶，其中a = 9.2242（18），b = 15.102（3），c = 18.587（4）埃，alpha = 75.93（3），beta = 82.88（3）和gamma = 79.00 （3）3的度数，a = 9.2692（19），b = 15.369（3），c = 18.353（4）埃，alpha = 75.37（3），beta = 81.32（3）和γ= 78.15（3）度4.电位计，吸收和NMR光谱表明，溶液中仅存在1：1物种。所有化合物均呈弱发光固体状，并研究了化学计量比为1：1的Ln（III）配体溶液的光物理性质。测量了含Eu（III）和Tb（III）的甲醇溶液的量子产率，分别约为1％和3％。

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《Dalton transactions: An international journal of inorganic chemistry》 |2006年第34期|共11页
作者
de Bettencourt-Dias A; Viswanathan S;
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正文语种 eng
中图分类无机化学;
关键词
PH-METRIC LOG; METHANOL-WATER; PK(A) DETERMINATION; CARBOXYLIC ACIDS; TRIPLET-STATE; CONSTANTS; FLUORESCENCE; ENHANCEMENT; LANTHANIDES; MIXTURES;

机译：pH测井;甲醇水;PK（A）测定;羧酸;三重态;常数;荧光;增强;镧系元素;混合物;

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1. Nitro-functionalization and luminescence quantum yield of Eu(III) and Tb(III) benzoic acid complexes [J] . de Bettencourt-Dias A, Viswanathan S Dalton transactions: An international journal of inorganic chemistry . 2006,第34期

机译：Eu（III）和Tb（III）苯甲酸配合物的硝基官能化和发光量子产率
2. Visible and near-infrared intense luminescence from water-soluble lanthanide [Tb(III), Eu(III), Sm(III), Dy(III), Pr(III), Ho(III), Yb(III), Nd(III), Er(III)] complexes [J] . Quici S, Cavazzini M, Marzanni G, Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2005,第3期

机译：水溶性镧系元素[Tb（III），Eu（III），Sm（III），Dy（III），Pr（III），Ho（III），Yb（III），Nd（ III），Er（III）]配合物
3. Photoacoustic and luminescence properties study on energy transfer and relaxation processes of Tb(III) complexes with benzoic acid [J] . Xijuan Yu, Qingde Su Journal of Photochemistry and Photobiology, A. Chemistry . 2003,第1a3期

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4. Luminescence of Complexes of Tb(III) ion with Aliphatic Binary Carboxylic Acid [C] . Xu Zhao, Wenlian Li, Yi Yu International conferenc on rare earth development and applications . 1995

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5. I. THE ELECTROCHEMISTRY OF NITRIC OXIDE AND A NITROUS ACID AT A MERCURY ELECTRODE IN AQUEOUS SOLUTIONS. II. ELECTROCHEMISTRY AND HYDROLYSIS KINETICS OF THE 2,2'-BIPYRIDINE COMPLEXES OF IRON(III) AND IRON(II); ELECTROCHEMICAL KINETIC PARAMETERS FOR SEVERAL IRON COMPLEXES. III. PROTON NUCLEAR MAGNETIC RESONANCE STUDIES OF URANIUM(IV)-ETHYLENE DIAMINETETRAACETIC ACID COMPLEXES IN AQUEOUS (DEUTERIUM-OXIDE) SOLUTIONS. [D] . EHMAN, DEWAYNE LEE. 1969

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Nitro-functionalization and luminescence quantum yield of Eu(III) and Tb(III) benzoic acid complexes

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