Analysis of the 1A′ S1 ← 1A′ S0 and 2A′ D0 ← 1A′ S1 band systems in 1,2-dichloro-4-fluorobenzene by means of resonance-enhanced-multi-photon-ionization (REMPI) and mass-analyzed-threshold-ionization (MATI) spectroscopy
Physical Chemistry Chemical Physics Pub Date: 2016-02-04 DOI: 10.1039/C5CP07909H
Abstract
Resonance enhanced multiphoton ionization (REMPI) and mass analyzed threshold ionization (MATI) spectroscopy have been applied in order to investigate the vibrational structure of 1,2-dichloro-4-fluorobenzene (1,2,4-DCFB) in its first excited state (S1) and the cationic ground state (D0). The selection of the state prior to ionization resulted in MATI spectra with different intensity distributions thus giving access to many vibrational levels. To support the experimental findings, geometry optimizations and frequency analyses at DFT (density functional) and TDDFT (time-dependent density functional) levels of theory have been applied. Additionally, a multidimensional Franck–Condon approach has been used to calculate the vibrational intensities from the DFT calculations. An excellent agreement between simulated and measured REMPI and MATI spectra allowed for a confident assignment of vibrational levels and mechanisms active during excitation and ionization. In order to avoid any ambiguity regarding the assignment of the vibrational bands to normal modes, Duschinsky normal mode analysis has been performed to correlate the ground state (S0) normal modes of 1,2,4-DCFB with the benzene derived Wilson nomenclature. From the REMPI spectra the electronic excitation energy (EE) of 1,2-dichloro-4-fluorobenzene could be determined to be 35?714 ± 2 cm?1 while the MATI spectra yielded the adiabatic ionization energy (IE) of 1,2-dichloro-4-fluorobenzene which could be determined to be 73?332 ± 7 cm?1.
Recommended Literature
- [1] Enabling shape memory and healable effects in a conjugated polymer by incorporating siloxane via dynamic imine bond? Yaling Zhang,Chunhui Dai,Shiwei Zhou,Bin LiuChem. Commun., 2018,54, 10092-10095 10.1039/C8CC05410J
- [2] Exchangeability of amino acid residues with similar physicochemical properties in coiled-coil interactions? Guiying Zhang,Maosheng Cheng,Yanni Li,Keliang Liu,Lifeng CaiChem. Commun., 2013,49, 11086-11088 10.1039/C3CC46560H
- [3] Enabling high-throughput single-animal gene-expression studies with molecular and micro-scale technologies Jason WanLab Chip, 2020,20, 4528-4538 10.1039/D0LC00881H
- [4] Fast synthesis of copper nanoclusters through the use of hydrogen peroxide additive and their application for the fluorescence detection of Hg2+ in water samples? Liao Xiaoqing,Li Ruiyi,Li Zaijun,Sun Xiulan,Wang Zhouping,Liu JunkangNew J. Chem., 2015,39, 5240-5248 10.1039/C5NJ00831J
- [5] Fatty acid positional distribution in colostrum and mature milk of women living in Inner Mongolia, North Jiangsu and Guangxi of China? Long Deng,Qian Zou,Biao Liu,Wenhui Ye,Chengfei Zhuo,Li Chen,Ze-Yuan Deng,Ya-Wei Fan,Jing LiFood Funct., 2018,9, 4234-4245 10.1039/C8FO00787J
- [6] Excellent peroxidase mimicking property of CuO/Pt nanocomposites and their application as an ascorbic acid sensor? Xinhuan Wang,Shuangfei Cai,Cui QiAnalyst, 2017,142, 2500-2506 10.1039/C7AN00589J
- [7] Essential effect of the electrolyte on the mechanical and chemical degradation of LiNi0.8Co0.15Al0.05O2 cathodes upon long-term cycling?? Xiaoming Liu,Zachary D. Hood,Wangda Li,Donovan N. Leonard,Arumugam Manthiram,Miaofang ChiJ. Mater. Chem. A, 2021,9, 2111-2119 10.1039/D0TA07814J
- [8] Ester-directed orthogonal dual C–H activation and ortho aryl C–H alkenylation via distal weak coordination? Manickam Bakthadoss,Tadiparthi Thirupathi Reddy,Vishal Agarwal,Duddu S. SharadaChem. Commun., 2022,58, 1406-1409 10.1039/D1CC06097J
- [9] Emergence of microfluidic wearable technologies Joo Chuan Yeo,KenryLab Chip, 2016,16, 4082-4090 10.1039/C6LC00926C
- [10] Evolution of cellulose into flexible conductive green electronics: a smart strategy to fabricate sustainable electrodes for supercapacitors Tengfei Yu,Yuehan Wu,Wei Li,Bin LiRSC Adv., 2014,4, 34134-34143 10.1039/C4RA07017H
Journal Name：Physical Chemistry Chemical Physics
research_products
-
CAS no.: 89640-58-4
![1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-6-ol](https://ossimg.kuujia.com/scimg/1271000/1270529-38-8x500.png)
![N-(3-cyanothiolan-3-yl)-2-[(2,2,2-trifluoroethyl)sulfanyl]pyridine-4-carboxamide](https://ossimg.kuujia.com/scimg/1444500/1444113-98-7x500.png)
![2,2-Difluoro-3-[methyl(2-methylbutyl)amino]propanoic acid](https://ossimg.kuujia.com/scimg/2138500/2138166-62-6x500.png)
![2-(1H-indol-3-yl)-N-{[6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]methyl}acetamide](https://ossimg.kuujia.com/scimg/2034500/2034271-14-0x500.png)