Composition for detecting acidic compound

Patent metadata

Field	Value
Publication number	US-11465962-B2
Application number	US-201916500152-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Jan 26, 2018
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A composition for detecting an acidic compound and a method using the same are discloses herein. In some embodiments, the method includes contacting a composition comprising a metal-organic hybrid structure formed by coordinate bond between a compound represented by the following Chemical Formula 1 or a salt thereof and a metal ion, with an acidic compound to be detected, wherein the composition is in the form of a metallogel prior to contact with the acidic compound, and detecting the acidic compound based on the transition of the composition from the form of a metallogel to a liquid phase. In some embodiments, detection of the acidic compound can be visually confirmed by phase transformation of the composition from a metallogel to a liquid phase.

First claim

The invention claimed is:

1. A method of detecting an acidic compound, comprising:
contacting a composition comprising a metal-organic hybrid structure formed by coordinate bond between a compound represented by the following Chemical Formula 1 or a salt thereof and a metal ion, with an acidic compound to be detected, wherein the composition is in the form of a metallogel prior to contact with the acidic compound; and
detecting the acidic compound based on the transition of the composition from the form of a metallogel to a liquid phase:

in Chemical Formula 1,
each R is independently -R 1 , —NH—CO-R 2 , or —NH-R 2 ,
each R 1 is independently —OH, C 6-60 aryl, C 1-10 alkyl, or an amino acid residue, and
R 2 is C 1-10 alkyl, C 6-60 aryl, or C 4-60 heteroaryl containing any one of N, O, and S.

2. The method according to claim 1 , wherein each R 1 is independently —OH, phenyl, naphthyl, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, or an amino acid residue selected from the group consisting of alanine, cysteine, aspartic acid, glutamic acid, phenylalanine, histidine, isoleucine, lysine, leucine, methionine, asparagine, pyrrolysine, glutamine, arginine, serine, threonine, selenocysteine, valine, tryptophan, and tyrosine.

3. The method according to claim 1 , wherein R 2 is methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, hexyl, octyl, phenyl, naphthyl, or pyridinyl.

4. The method according to claim 1 , wherein the compound represented by Chemical Formula 1 are compounds represented by the following Chemical Formulas 1-1 to 1-5:

5. The method according to claim 1 , wherein the metal of the metal ion is Period 1 transition metal, Period 2 transition metal, Period 3 transition metal, or lanthanide metal.

6. The method according to claim 1 , wherein the metal of the metal ion is Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Zr, Mo, Ru, Rh, Pd, Ag, Ir, Pt, Au, Tb, Eu, or Yb.

7. The method according to claim 1 , wherein the acidic compound is a liquid or a gas.

8. The method according to claim 1 , wherein the acidic compound is hydrogen chloride, hydrogen fluoride, hydrogen bromide, trifluoroacetic acid, acetic acid, nitrogen oxide, nitric acid, sulfur oxide or sulfuric acid.

9. The method according to claim 1 , wherein the composition further comprises:
a solvent, wherein the solvent is trapped between spaces in the metal-organic hybrid structure.

Assignees

• Lg Chemical Ltd
• Seoul Nat Univ R&Db Foundation

Inventors

• Kwon Won Jong
• Lee Dongwhan
• Kim Junghwan

Classifications

• C07D401/14

  containing three or more hetero rings · CPC title

• G01N31/223 Primary

  for investigating presence of specific gases or aerosols (G01N31/221, G01N31/222 take precedence; actuation of fire alarm by presence of smoke or gases G08B17/10) · CPC title

• G01N31/22

  using chemical indicators (G01N31/02 takes precedence) · CPC title

• C07C251/48

  with the carbon atom of at least one of the oxyimino groups bound to a carbon atom of a six-membered aromatic ring · CPC title

• C07C251/70 Primary

  Metal complexes of oximes · CPC title