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Terbium metal complex based on octacarboxy-calix[4]arene and preparation method thereof

A technology of metal complexes and octacarboxyl groups, applied in the chemical field, can solve the problems of less synthesis of calixarene, complicated synthesis steps, and unseen reports, and achieve the effects of strong repeatability, simple preparation method, and stable product performance

Inactive Publication Date: 2018-10-19
NORTHEAST NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the complicated synthesis steps, the synthesis of octacarboxyl-substituted calixarene is less, and the research on its complexes and properties is more limited
The successful detection of small organic molecules based on fluorescence-enhancing properties has never been reported

Method used

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  • Terbium metal complex based on octacarboxy-calix[4]arene and preparation method thereof
  • Terbium metal complex based on octacarboxy-calix[4]arene and preparation method thereof
  • Terbium metal complex based on octacarboxy-calix[4]arene and preparation method thereof

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Experimental program
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Embodiment Construction

[0020] Synthesis of metal complexes:

[0021] h 8 L (27.0mg, 0.1mmol), TbCl 3 ·6H 2 O (18.0mg, 0.048mmol), DMF (2mL) and water (6mL) were mixed, put into a 15mL polytetrafluoroethylene reactor, placed in an oven and heated to 100°C for 72 hours at a constant temperature, and then slowly lowered to room temperature to obtain Colorless crystals, yield 35%.

[0022] The main infrared absorption peaks are: 3750(s), 3525(s), 3325(m), 3249(m), 2929(w), 2856(m), 1711(m), 1583(w), 1507(w ), 1454(w), 1427(w), 1375(m), 1331(m), 1298(w), 1257(m), 1188(m), 1119(w), 1071(m), 939(s ), 908(s), 852(s), 775(s), 725(m), 680(m), 582(s), 510(s), 413(s).

[0023] Relevant characterization of complexes

[0024] (1) Determination of the crystal structure of the complex

[0025] The diffraction data of the complex were collected on an Oxford Diffraction Gemini R Ultra diffractometer, 293K, Mo K α Rays Use technical scans for corrections. The crystal structure was solved by the direct metho...

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Abstract

The invention discloses an octacarboxyl-calix [4] arene based terbium metal complex and a preparation method thereof, and belongs to the chemical technical field. The complex is represented by the following chemical formula: [(CH3)2NH2][Tb2(HL)(H2O)7].2H2O, wherein HL is a 2,8,14,20-tetra-amyl-4,6,10,12,16,18,22,24-octa-carboxymethoxy-calix [4] arene anion having seven protons removed. The complex is prepared by a solvothermal method. The fluorescence testing study of the complex indicates that the complex has strong and stable green fluorescence, can realize selective highly efficient detection of organic small molecules N,N'-dimethylformamide and is expected as a fluorescent material to be applied in the field of material science.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and relates to an octacarboxyl-substituted calix[4]arene rare earth metal complex and a preparation method thereof. Background technique [0002] The detection of small organic molecules has very important research value in the fields of biotechnology and environmental monitoring. However, most small organic molecules have similar structural units and similar chemical and physical properties. This research has always been a challenge for chemists (W.J.Peveler, A.Roldan, N.Hollingsworth, M.J.Porter, I.P.Parkin, ACS Nano2016, 10, 1139-1146). For the detection of small molecules, fluorescence assays provide simple, sensitive, and rapid technical support (C. Wang, O. Volotskova, K. Lu, M. Ahmad, C. Sun, L. Xing, W. Lin, J. Am. Chem. Soc. 2014, 136, 6171-6174). Metal-organic frameworks based on lanthanides have special fluorescent properties, and their applications in the detection of small molec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F5/00C09K11/06
CPCC07B2200/13C07F5/003C09K11/06C09K2211/182
Inventor 马建方刘莹莹张航
Owner NORTHEAST NORMAL UNIVERSITY
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