Title:
RATIOMETRIC FLUORESCENT OXYGEN DETECTION MATERIAL WITH ULTRA-LOW DETECTION LIMIT AND HIGH SENSITIVITY
Document Type and Number:
WIPO Patent Application WO/2021/258551
Kind Code:
A1
Abstract:
The present invention discloses a ratiometric oxygen detection material with an ultra-low detection limit and a high sensitivity and a preparation method therefor, which belongs to the crossover fields of nano materials and coordination chemistry. The material is a silver-sulfur cluster-based metal-organic framework material bridged by a 12-core silver-sulfur cluster as a node and a bidentate organic ligand, and has a ratiometric oxygen detection performance. The compound has a chemical formula of [Ag 12(SBu t) 8(CF 3COO) 4(bpy-NH 2) 4] n, which belongs to the tetragonal system; and the space group is I-42m. The compound has a strong yellow fluorescence under oxygen-free conditions, including two emission peaks at 456 nm and 556 nm, with a fluorescence lifetime of 0.37 ns and 3.12 ms, respectively; and the fluorescence at 556 nm is extremely sensitive to oxygen, and in an oxygen content range of 0-2.4 Pa, the fluorescence intensity quenching thereof and the oxygen pressure are in a good linear relationship, such that the oxygen can be quantitatively detected. The material has the advantages of a low detection limit, a fast response, a high sensitivity and a good stability, etc.
Inventors:
ZANG SHUANGQUAN (CN)
DONG XIYAN (CN)
DONG XIYAN (CN)
Application Number:
PCT/CN2020/114013
Publication Date:
December 30, 2021
Filing Date:
September 08, 2020
Export Citation:
Assignee:
UNIV ZHENGZHOU (CN)
International Classes:
C07F1/10; C09K11/06; G01N21/64
Foreign References:
| CN111574541A | 2020-08-25 | |||
| CN106589400A | 2017-04-26 | |||
| CN106854286A | 2017-06-16 | |||
| CN106501230A | 2017-03-15 |
Other References:
HUANG REN-WU, XI-YAN DONG, BING-JIE YAN, XIANG-SHA DU, DONG-HUI WEI, SHUANG-QUAN ZANG, THOMAS C W MAK : "Tandem Silver Cluster Isomerism and Mixed Linkers to Modulate the Photoluminescence of Cluster-Assembled Materials", ANGEW. CHEM. INT. ED., vol. 57, 14 June 2018 (2018-06-14), pages 8560 - 8566, XP055883272, DOI: 10.1002/anie.201804059
HUANG REN-WU, WEI YONG-SHENG, DONG XI-YAN, WU XIAO-HUI, DU CHEN-XIA, ZANG SHUANG-QUAN, MAK THOMAS C. W.: "Hypersensitive dual-function luminescence switching of a silver-chalcogenolate cluster-based metal–organic framework", NATURE CHEMISTRY, NATURE PUBLISHING GROUP UK, LONDON, vol. 9, no. 7, 1 July 2017 (2017-07-01), London, pages 689 - 697, XP055883273, ISSN: 1755-4330, DOI: 10.1038/nchem.2718
See also references of EP 4169926A4
HUANG REN-WU, WEI YONG-SHENG, DONG XI-YAN, WU XIAO-HUI, DU CHEN-XIA, ZANG SHUANG-QUAN, MAK THOMAS C. W.: "Hypersensitive dual-function luminescence switching of a silver-chalcogenolate cluster-based metal–organic framework", NATURE CHEMISTRY, NATURE PUBLISHING GROUP UK, LONDON, vol. 9, no. 7, 1 July 2017 (2017-07-01), London, pages 689 - 697, XP055883273, ISSN: 1755-4330, DOI: 10.1038/nchem.2718
See also references of EP 4169926A4
Attorney, Agent or Firm:
ZHENGZHOU LIANKE PATENT AGENCY (COMMON PARTNERSHIP) (CN)
Download PDF: