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Organic metal gel for identifying iodide ions by fluorescence, as well as preparation and applications of organic metal gel

An organometallic and fluorescent recognition technology, applied in the field of anion detection, can solve the problems of expensive instruments, complicated operations, difficult preparation, etc., and achieve the effect of convenient and fast detection

Inactive Publication Date: 2014-02-05
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Selective recognition of I - There are very few synthetic receptors, and the structure of these receptors is relatively complex, making it difficult to prepare
Moreover, using these receptors to recognize I - Many methods require expensive instruments and complicated operations, which severely limit the application of these methods

Method used

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  • Organic metal gel for identifying iodide ions by fluorescence, as well as preparation and applications of organic metal gel
  • Organic metal gel for identifying iodide ions by fluorescence, as well as preparation and applications of organic metal gel
  • Organic metal gel for identifying iodide ions by fluorescence, as well as preparation and applications of organic metal gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1. Synthesis of gelling factor 1-naphthalene-3,4,5-tris(hexadecyloxy)benzoylhydrazone

[0037] Add 30 mL of absolute ethanol, 5.0 mmol of 3,4,5-tris(hexadecyloxy)benzoic hydrazide, 5.0 mmol of 1-naphthaldehyde, and 0.01-0.05 mL of glacial acetic acid into a 50 mL reaction flask, and stir under reflux for 3 ~8h, after cooling, filter with suction and recrystallize with chloroform-ethanol to obtain a white solid product which is 1-naphthalene-3,4,5-tris(hexadecyloxy)benzoylhydrazone.

[0038] Yield: 75%, m.p. 89-91°C, 1 H-NMR (CDCl 3 , 400 MHz) δ 9.59(s, H, -NH), 9.043 (s, H, =CH), 8.691~8.672 (m,8H, -ArH), 7.109(s,2H,-phH), 4.013~3.885 (m, 6H, -OCH 2 ), 1.803~1.030 (m,72H,-C 12 h 24 ), 0.894~0.862 (m, 9H, -CH 2 CH 3 ).IR (KBr, cm -1 ) v : 3449.924(-NH), 1715.631(C=O), 1648.878(CH=N). MS: m / z : 996.1 [C 66 h 110 N 2 o 4 + H + ]; Calcd for C 66 h 110 N 2 o 4 : 995.59.

[0039] 2. Preparation of organogels

[0040] Add 30 mL of absolute ethanol and 1...

Embodiment 2

[0044] 1. Synthesis of gelling factor 1-naphthalene-3,4,5-tris(hexadecyloxy)benzoylhydrazone: same as in Example 1.

[0045] 2. Preparation of organogels

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Abstract

The invention provides an organic metal gel for identifying iodide ions by fluorescence colorimetry, which belongs to the technical field of negative ion detection. The organic metal gel is prepared through the following steps: heating and dissolving an iodide ion acceptor gelator 1-naphthalene-3,4,5-tri(hexadecyloxy) benzoyl acylhydrazone and Cd<2+> in an organic solvent to form a gel solution with mass percent being 0.5-2%; standing the gel solution; and cooling the gel solution to room temperature to form stable organic metal gel. The organic metal gel has strong blue-green fluorescence. When an iodide ion solution is added in the organic metal gel, the fluorescence of the organic metal gel is quenched, while the addition of other negative ions cannot generate similar fluorescence changing phenomena. Therefore, the organic metal gel is capable of singly identifying the iodide ions by selective fluorescence colorimetry, while other negative ions do not cause interference to the identifying process, so that the organic metal gel can be conveniently and rapidly used for detecting the iodide ions.

Description

technical field [0001] The invention belongs to the technical field of anion detection, and relates to a - The detected organometallic gel specifically relates to an organometallic gel formed by using 1-naphthalene-3,4,5-tri(hexadecyloxy)benzoylhydrazone as an iodide ion acceptor; the present invention simultaneously Also relate to the preparation of this organometallic gel and its identification in fluorescence colorimetry - in the application. Background technique [0002] Iodine is an essential trace element for the human body. It has an important impact on human brain function, cell development, nerve activity, metabolism and thyroid function. Iodine deficiency or excess iodine intake can lead to diseases such as goiter, hypothyroidism and hyperthyroidism. I - It has a wide range of applications in chemical fields such as drug synthesis. Therefore, I - Analysis and detection is a very important task. Commonly used I - The detection methods include gas chromatogra...

Claims

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Application Information

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IPC IPC(8): C07C251/86C07C249/16C09K11/06G01N21/64
Inventor 林奇杨青平孙斌张有明魏太保
Owner NORTHWEST NORMAL UNIVERSITY
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