TY - JOUR
T1 - Thioxanthone-based organic probe with aggregation enhanced emission and exceptional mineral acids sensing abilities
AU - Hassan, Syed Imran
AU - Haque, Ashanul
AU - Jeilani, Yassin A.
AU - Ilmi, Rashid
AU - Faizi, Md Serajul Haque
AU - Khan, Imran
AU - Mushtaque, Md
N1 - Funding Information:
AH and YAJ acknowledge the Department of Chemistry, University of Hail, Kingdom of Saudi Arabia, and SIH acknowledges the Department of Chemistry, Sultan Qaboos University, Oman, respectively, for providing infrastructural support during the preparation of this manuscript. The authors like to acknowledge Dr. Nawal K. Al-Rasbi at the Department of Chemistry, Sultan Qaboos University, Oman, to perform X-ray crystallography. SEAGrid (http: www.seagrid.org ) is acknowledged for computational resources and services for the selected results used in this publication [63] . This work used the Extreme Science and Engineering Discovery Environment (XSEDE), supported by the National Science Foundation grant number ACI-1053575 .
Publisher Copyright:
© 2020
PY - 2021/1/15
Y1 - 2021/1/15
N2 - The development of fluorescent probe(s) for naked eye analyte detection is an emerging area of research. Such probes can be judiciously engineered to realize analyte specific response with high sensitivity and broad applicability. Herein, we report reversible acid-base sensing ability of a donor-acceptor-donor (D-A-D) type thioxanthone-based luminophore 3,6-bis(dimethylamino)-9H-thioxanthen-9-one 10,10-dioxide (3). Photo-physical features of 3 in both the solid and solution states have also been determined. Moreover, the reported probe exhibited aggregation-enhanced emission (AEE) characteristics and pH dependent emission colour. An intramolecular charge transfer (ICT) process was observed between donor (N,N-dimethylamino) and acceptor (thioxanthone) units. The fact that changes can be seen under both the UV and visible lights without any special aid, signifies a remarkable prospect of this organic probe in distinguishing the commonly used laboratory acids of different strength.
AB - The development of fluorescent probe(s) for naked eye analyte detection is an emerging area of research. Such probes can be judiciously engineered to realize analyte specific response with high sensitivity and broad applicability. Herein, we report reversible acid-base sensing ability of a donor-acceptor-donor (D-A-D) type thioxanthone-based luminophore 3,6-bis(dimethylamino)-9H-thioxanthen-9-one 10,10-dioxide (3). Photo-physical features of 3 in both the solid and solution states have also been determined. Moreover, the reported probe exhibited aggregation-enhanced emission (AEE) characteristics and pH dependent emission colour. An intramolecular charge transfer (ICT) process was observed between donor (N,N-dimethylamino) and acceptor (thioxanthone) units. The fact that changes can be seen under both the UV and visible lights without any special aid, signifies a remarkable prospect of this organic probe in distinguishing the commonly used laboratory acids of different strength.
KW - Aggregation-enhanced emission
KW - Sensing
KW - Thioxanthen-9-one
KW - X-ray structure
KW - pH-dependence
UR - http://www.scopus.com/inward/record.url?scp=85089158552&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85089158552&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2020.129004
DO - 10.1016/j.molstruc.2020.129004
M3 - Article
AN - SCOPUS:85089158552
SN - 0022-2860
VL - 1224
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
M1 - 129004
ER -