NDLI: Structure, Luminescent Sensing and Proton Conduction of a Boiling-Water-Stable Zn(II) Metal-Organic Framework

Please wait, while we are loading the content...

Structure, Luminescent Sensing and Proton Conduction of a Boiling-Water-Stable Zn(II) Metal-Organic Framework

Content Provider	MDPI
Author	Zhou, Hua-Qun Zheng, Sai-Li Wu, Can-Min Ye, Xin-He Liao, Wei-Ming He, Jun
Copyright Year	2021
Description	A novel Zn(II) metal-organic framework $[Zn_{4}O(C_{30}H_{12}F_{4}O_{4}S_{8})_{3}]_{n}$, namely ZnBPD-4F4TS, has been constructed from a fluoro- and thiophenethio-functionalized ligand 2,2′,5,5′-tetrafluoro-3,3′,6,6′-tetrakis(2-thiophenethio)-4,4′-biphenyl dicarboxylic acid $(H_{2}$BPD-4F4TS). ZnBPD-4F4TS shows a broad green emission around 520 nm in solid state luminescence, with a Commission International De L’Eclairage (CIE) coordinate at x = 0.264, y = 0.403. Since $d^{10}$-configured Zn(II) is electrochemically inert, its photoluminescence is likely ascribed to ligand-based luminescence which originates from the well-conjugated system of phenyl and thiophenethio moieties. Its luminescent intensities diminish to different extents when exposed to various metal ions, indicating its potential as an optical sensor for detecting metal ion species. Furthermore, ZnBPD-4F4TS and its $NH_{4}$Br-loaded composite, $NH_{4}$Br@ZnBPD-4F4TS, were used for proton conduction measurements in different relative humidity (RH) levels and temperatures. Original ZnBPD-4F4TS shows a low proton conductivity of 9.47 × $10^{−10}$ S $cm^{−1}$ while $NH_{4}$Br@ZnBPD-4F4TS shows a more than 25,000-fold enhanced value of 2.38 × $10^{−}$5 S $cm^{−1}$ at 40 °C and 90% RH. Both of the proton transport processes in ZnBPD-4F4TS and $NH_{4}$Br@ZnBPD-4F4TS belong to the Grotthuss mechanism with $E_{a}$ = 0.40 and 0.32 eV, respectively.
Starting Page	5044
e-ISSN	14203049
DOI	10.3390/molecules26165044
Journal	Molecules
Issue Number	16
Volume Number	26
Language	English
Publisher	MDPI
Publisher Date	2021-08-20
Access Restriction	Open
Subject Keyword	Molecules Inorganic Chemistry Proton Conduction Metal Ion Sensing Luminescence Metal-organic Framework
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in