Syntheses, structures, and photoluminescence of a series of three-dimensional Cd(II) frameworks with a flexible ligand, 1,5-Bis(5-tetrazolo) -3-oxapentane

Cui P.; Chen Z.; Gao D.; Zhao B.; Shi W.; Cheng P.

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Syntheses, structures, and photoluminescence of a series of three-dimensional Cd(II) frameworks with a flexible ligand, 1,5-Bis(5-tetrazolo) -3-oxapentane

机译：一系列具有柔性配体1,5-双（5-四唑）-3-氧杂戊烷的三维Cd（II）骨架的合成，结构和光致发光

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Six novel Cd~(II)-based metal-organic frameworks with a flexible ligand 1,5-bis(5-tetrazolo)-3-oxapentane) (H_2btz), [Cd _5(N_3)_6(btz)_2]_n (1), [Cd_5X_2(N_3)_4(btz)_2] _n (X = Cl (2), Br (3)), [Cd_3(N_3) _2(btz)_2]_n (4), and [Cd_3X _2(btz)_2]_n (X = Cl (5), Br (6)), have been successfully synthesized under hydrothermal reactions and structurally characterized by single-crystal X-ray diffraction. The H_2btz ligands in the complexes 1-4 can be in situ generated from the [2 + 3]-cycloaddition reaction of the precursor bis(2-cyanoethyl)ether (BCEE) and NaN_3 under Cd~(II)-catalyzed. Single-crystal X-ray diffraction analysis revealed that all of the complexes 1-6 displayed rich three-dimensional (3D) frameworks constructed from Cd~(2+), btz~(2-) ligand, and bridging anions. It has been found that the ingenious changes of anions finally lead to the structural diversity in 1-6, such as N_3~- for 1 and 4, N_3~- and Cl~- for 2, N_3~- and Br~- for 3, Cl~- for 5, and Br~- for 6. Additionally, the X-ray powder diffraction (XRPD), thermal stability, and the photoluminescence properties at room temperature in the solid state for 1-6 have also been studied.

机译：六个新颖的基于Cd〜（II）的金属有机骨架，具有柔性配体1,5-双（5-四唑）-3-氧杂戊烷）（H_2btz），[Cd _5（N_3）_6（btz）_2] _n（ 1），[Cd_5X_2（N_3）_4（btz）_2] _n（X = Cl（2），Br（3）），[Cd_3（N_3）_2（btz）_2] _n（4）和[Cd_3X _2（ btz）_2] _n（X = Cl（5），Br（6）），已在水热反应下成功合成，并通过单晶X射线衍射对其结构进行了表征。配合物1-4中的H_2btz配体可以在Cd〜（II）催化下由前体双（2-氰乙基）醚（BCEE）和NaN_3的[2 + 3]-环加成反应原位生成。单晶X射线衍射分析表明，所有配合物1-6均显示出由Cd〜（2 +），btz〜（2-）配体和桥连阴离子构成的丰富的三维（3D）骨架。已经发现，阴离子的巧妙变化最终导致1-6的结构多样性，例如1和4的N_3〜-，2的N_3〜-和Cl〜-，3的Br_-。另外，还研究了X射线粉末衍射（XRPD），热稳定性和在室温下在固态下对于1-6的X射线粉末衍射（XRPD），热稳定性和光致发光性质。

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《Crystal growth & design》 |2010年第10期|共9页
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Cui P.; Chen Z.; Gao D.; Zhao B.; Shi W.; Cheng P.;
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机译：一系列具有柔性配体1,5-双（5-四唑）-3-氧杂戊烷的三维Cd（II）骨架的合成，结构和光致发光
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Syntheses, structures, and photoluminescence of a series of three-dimensional Cd(II) frameworks with a flexible ligand, 1,5-Bis(5-tetrazolo) -3-oxapentane

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