Investigation of Excited-State Intramolecular Proton Transfer and Structural Dynamics in Bis-Benzimidazole Derivative (BBM)

doi:10.3390/ijms24119438

	Investigation of Excited-State Intramolecular Proton Transfer and Structural Dynamics in Bis-Benzimidazole Derivative (BBM)
	Xie, Junhan1 ; Wang, Ziyu1 ; Zhu, Ruixue1 ; Jiang, Jiaming1 ; Weng, Tsu-Chien1 ; Ren, Yi1 ; Han, Shuhua 2; Huang, Yifan1 ; Liu, Weimin1,3
	2023-05-29
发表期刊	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN	1661-6596
EISSN	1422-0067
卷号	24 期号:11
发表状态	已发表
DOI	10.3390/ijms24119438
摘要	The bis-benzimidazole derivative (BBM) molecule, consisting of two 2-(2 '-hydroxyphenyl) benzimidazole (HBI) halves, has been synthesized and successfully utilized as a ratiometric fluorescence sensor for the sensitive detection of Cu2+ based on enol-keto excited-state intramolecular proton transfer (ESIPT). In this study, we strategically implement femtosecond stimulated Raman spectroscopy and several time-resolved electronic spectroscopies, aided by quantum chemical calculations to investigate the detailed primary photodynamics of the BBM molecule. The results demonstrate that the ESIPT from BBM-enol* to BBM-keto* was observed in only one of the HBI halves with a time constant of 300 fs; after that, the rotation of the dihedral angle between the two HBI halves generated a planarized BBM-keto* isomer in 3 ps, leading to a dynamic redshift of BBM-keto* emission.
关键词	excited-state intramolecular proton transfer structural dynamics transient absorption femtosecond fluorescence upconversion femtosecond stimulated Raman spectroscopy
URL	查看原文
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Shanghai[20ZR1436300] ; National Natural Science Foundation of China[21872094] ; ShanghaiTech University, ShanghaiTech[F-0201-16-006]
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS记录号	WOS:001004674400001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/312310
专题	物质科学与技术学院物质科学与技术学院_PI研究组_刘伟民组物质科学与技术学院_PI研究组_黄逸凡组物质科学与技术学院_PI研究组_任毅组物质科学与技术学院_博士生大科学中心_PI研究组_翁祖谦组大科学中心_公共科研平台_大科学装置建设部
通讯作者	Huang, Yifan; Liu, Weimin
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China 3.STU & SIOM Joint Lab Superintense Lasers & Applica, Shanghai 201210, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Xie, Junhan,Wang, Ziyu,Zhu, Ruixue,et al. Investigation of Excited-State Intramolecular Proton Transfer and Structural Dynamics in Bis-Benzimidazole Derivative (BBM)[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2023,24(11).
APA	Xie, Junhan.,Wang, Ziyu.,Zhu, Ruixue.,Jiang, Jiaming.,Weng, Tsu-Chien.,...&Liu, Weimin.(2023).Investigation of Excited-State Intramolecular Proton Transfer and Structural Dynamics in Bis-Benzimidazole Derivative (BBM).INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,24(11).
MLA	Xie, Junhan,et al."Investigation of Excited-State Intramolecular Proton Transfer and Structural Dynamics in Bis-Benzimidazole Derivative (BBM)".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 24.11(2023).