Decoupling diffusion from the bimolecular photoinduced electron transfer reaction: a combined ultrafast spectroscopic and kinetic analysis
文献信息
Puspal Mukherjee, Pratik Sen
We have studied the bimolecular photoinduced electron transfer (PET) reaction between benzophenone (Bp) and DABCO using femtosecond broadband transient absorption spectroscopy in different compositions of acetonitrile/1-butanol binary solvent mixtures. With the increase in the 1-butanol percentage in the mixture, we have observed an increase in the onset delay time of Bp˙−, which is the product of the reaction. As 1-butanol is more viscous than acetonitrile, we related the onset time to the change in medium viscosity. Moreover, we undertook a complete kinetic analysis of the bimolecular PET reaction under different conditions to show that from transient absorption spectroscopy, we can get the exact rate of electron transfer. This kind of kinetic analysis along with the experimental data is the first of its kind to prove that transient absorption spectroscopy is probably the most useful tool in studying the PET reaction.
期刊推荐

Chinese Journal of Chemistry

Herald of the Russian Academy of Sciences

Acta Metallurgica Sinica-English Letters

Topics in Catalysis

Journal of Asian Natural Products Research

Journal of the Indian Institute of Science

Medicinal Chemistry Research

Heteroatom Chemistry

Polycyclic Aromatic Compounds

Journal of Chemical Sciences
相关文献
Preparation and characterization of silica confined ionic liquids as chromatographic stationary phases through surface radical chain-transfer reaction
Hongdeng Qiu, Licheng Wang, Xia Liu, Shengxiang Jiang
DOI: 10.1039/B809125K
Electrochemiluminescence detection based on Ruthenium(II) tris(bipyridine) immobilised in sulfonic-functionalised titania nanoparticles by ion exchange strategy
Fan Yang
DOI: 10.1039/B903434J
Renewable surface fluorescence sandwich immunoassay biosensor for rapid sensitive botulinum toxin detection in an automated fluidic format
Jay W. Grate, Marvin G. Warner, Richard M. Ozanich, Jr., Keith D. Miller, Heather A. Colburn, Brian Dockendorff, Kathryn C. Antolick, Norman C. Anheier Jr., Michael A. Lind, Jianlong Lou, James D. Marks, Cynthia J. Bruckner-Lea
DOI: 10.1039/B900794F
Aptamer-based electrochemical sensors that are not based on the target binding-induced conformational change of aptamers
Ying Lu, Ningning Zhu, Ping Yu, Lanqun Mao
DOI: 10.1039/B807913G
On-chip Raman analysis of heterogeneous catalytic reaction in supercritical CO2: phase behaviour monitoring and activity profiling
Atsushi Urakawa, Franz Trachsel, Philipp Rudolf von Rohr, Alfons Baiker
DOI: 10.1039/B808984C
A novel approach to correct variations in Raman spectra due to photo-bleachable cellular components
Maarten Scholtes-Timmerman, Alex van Belkum
DOI: 10.1039/B811596F
Facile analysis of metabolites by capillary electrophoresis coupled to matrix-assisted laser desorption/ionization mass spectrometry using target plates with polysilazane nanocoating and grooves
Andrea Amantonico, Pawel L. Urban, Renato Zenobi
DOI: 10.1039/B907039G
The analytical utility of thermally desorbed polydimethylsilicone membranes for in-vivo sampling of volatile organic compounds in and on human skin
S. Riazanskaia, G. Blackburn, M. Harker, D. Taylor, C. L. P. Thomas
DOI: 10.1039/B802515K
您可能还喜欢
4,5-二甲基-2-硝基苯甲酸(CAS号:4315-14-4)的市场或研究趋势如何?
4,5-二甲基-2-硝基苯甲酸主要应用于制药、染料和农药等行业。由于其潜在的毒性,其市场趋势可能受到法规限制和环保考量的影响,推动了替代产品的研发。在研究领域,...
处理直接黑22(CAS号:6473-13-8)时应注意哪些实验室安全事项?
处理直接黑22时应穿戴适当的个人防护装备(PPE),包括实验服、手套、护目镜和口罩。操作应在通风橱内进行,以避免吸入有害气体。如果发生泄漏,应立即清理,并使用大...
处理2,1,3-苯并噻二唑-4-基异氰酸酯(CAS号:342411-14-7)时应注意哪些实验室安全事项?
处理2,1,3-苯并噻二唑-4-基异氰酸酯时应注意以下安全事项:穿戴个人防护装备,如实验室外套、防护眼镜和手套;在通风橱中操作,确保良好的通风;保持实验室环境干...
如何处理含有Δ-8,9-脱氢雌酮(CAS号:204077-66-7)的废料?
含有Δ-8,9-脱氢雌酮的废料需要进行适当的处理以确保环境和人体安全。首先,收集废液并存放于密封容器中,避免泄漏。其次,可以考虑将其转化为无害物质或通过专业处理...
如何储存5-溴戊酸(CAS号:2067-33-6)?
5-溴戊酸应储存在阴凉、干燥、通风良好的环境中,避免阳光直射。建议在室温(约15-25°C)下保存,保持相对湿度低于60%。应使用密封的玻璃或塑料容器,并远离热...
4-(甲基亚磺酰基)苯胺(CAS号:22865-62-9)应用于哪些行业?
4-(甲基亚磺酰基)苯胺在医药、聚合物和传感器等领域有一定的应用。在医药方面,它可以用作合成药物的中间体;在聚合物领域,可以作为合成特殊性能高分子材料的单体;在...
什么是1-(2-FLUOROPHENYL)-5-METHYL-1H-PYRAZOLE-4-CARBOHYDRAZIDE(CAS号:618092-58-3)?
1-(2-氟苯基)-5-甲基-1H-吡唑-4-亚甲基肼是一种有机化合物,其分子式为C9H9FN3O。该化合物具有特定的物理化学性质,如熔点、沸点等,但具体值需查...
Dauricumine(CAS号:345641-00-1)通常如何合成?
Dauricumine通常通过复杂的合成路线制备,涉及多个步骤,包括环化、氧化、卤化等反应。合成过程中使用了多种催化剂和试剂,例如金属催化剂、氧化剂等。产率通常...
5-氰基苯酞(CAS号:82104-74-3)安全吗?
5-氰基苯酞在正常使用条件下相对安全,但其具有一定的毒性,需谨慎操作。在实验或工业应用中,应采取适当的防护措施,如佩戴防护手套、护目镜和实验服,确保通风良好。误...
2-Methyl-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridin-5-amine(CAS号:1186502-59-9)安全吗?
该化合物在使用时需要谨慎操作。虽然其毒性和健康风险尚未完全明确,但建议在通风良好的环境中操作,并穿戴适当的个人防护装备,如手套和防护眼镜。
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.




