Photodecay dynamics of octaethylporphine in the condensed phase explored via resonance Raman spectroscopy and density functional theory calculation

yin, Jiupeng; Wan, Junmin; Xu, Jun; Wang, Qianqian; Zheng, Xuming

doi:10.1016/j.saa.2011.01.020

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…Although the area of Nb18 molecule has not been reported, the aggregation behavior of a long-chain carboxylic hybrid with Nile Red at the interface has been observed, and the molecular dynamics sim-ulations of the phenoxazine-based complexes were reported to have a size range of 0.45-0.80 nm 2 . 28,[48][49][50] Our experimental result is roughly in consistence with the previous calculated/experimental data.…”

Section: Resultssupporting

confidence: 91%

Amphiphilic Molecules of Nb18: Synthesis, Langmuir-Blodgett Films Construction and Applications in Electro-Catalysts

Huang

Mao

Chen

et al. 2015

J. Electrochem. Soc.

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A new type of Nile blue (Nb) derivative molecules terminated with long-chain alkyl (termed as Nb18) has been synthesized from precursors of barium stearate and 3-amino-7-(diethylamino)-1,2-benzophenoxazin sulfate. Optical characterizations including UV-Vis absorption, fluorescence emission, excitation spectra and the infrared spectroscopy reveal a blueshift in the band emission of Nb18 as compared to the Nb molecule, and this shift was found to be reasoned by incorporation of long-chain alkyl groups and replacement of SO 4 2− . The amphiphilic Nb18 molecules were found to form stable Langmuir monolayers over aqueous solutions, and this allows one to study the kinetics of Nb18 formation by means of surficial chemistry. The synthetic reaction was demonstrated to have first-order kinetics with a rate constant of ∼0.0033 s −1 . Using different techniques (Langmuir-Blodgett and Langmuir-Schaefer) monolayers of Nb18 were deposited on an electrode where the amphiphilic molecules were differently oriented. Investigation of these films undertaken to confirm some of the previous electrochemical observations indicated that the electro-catalytic activity stems from the cationic rings of aromatic oxazine regarding to the oxidation of dihydronicotinamide adenine dinucleotide (NADH).

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Section: Resultssupporting

confidence: 91%

Amphiphilic Molecules of Nb18: Synthesis, Langmuir-Blodgett Films Construction and Applications in Electro-Catalysts

Huang

Mao

Chen

et al. 2015

J. Electrochem. Soc.

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“…This time‐dependent view of the resonance Raman scattering process has led to RRS being used to obtain a large amount of knowledge about the short‐time dynamics of small polyatomic molecules. Our group has concentrated on the resonance Raman researches of all kinds of photo‐sensitive compounds …”

Section: Introductionmentioning

confidence: 99%

The excited state dynamics study of di‐2‐pyridylketone in the A‐band and B‐band absorptions by using resonance Raman spectroscopy, IR and UV–visible spectroscopy

Wang

Zhang

Shen

et al. 2012

J Raman Spectroscopy

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Excitation wavelengths of 282.4, 273.9 (A band), 252.7, 239.5 and 228.7 nm (B band) resonance Raman spectra were acquired for di-2-pyridylketone, and density functional calculations were carried out to help in the elucidation of the photo relaxation dynamics of A-band and B-band electronic transitions. The resonance Raman spectra show that the intensity pattern of the A band presents great difference from that of the B band, which indicate that the short-time A-band (S 0 !S 4 ) photo relaxation dynamics have substantial difference from that of B band (S 0 !S 10 ) . The overall picture of short-time dynamics and the vibronic coupling mechanisms are interpreted using Albrecht's theory.

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Effects of chemical analytes on zinc tetraphenylporphine thin films studied by vibrational spectroscopy and density functional theory

Saini

Dogra

Singh

et al. 2012

Vibrational Spectroscopy

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Photodecay dynamics of octaethylporphine in the condensed phase explored via resonance Raman spectroscopy and density functional theory calculation

Cited by 4 publications

References 33 publications

Amphiphilic Molecules of Nb18: Synthesis, Langmuir-Blodgett Films Construction and Applications in Electro-Catalysts

Amphiphilic Molecules of Nb18: Synthesis, Langmuir-Blodgett Films Construction and Applications in Electro-Catalysts

The excited state dynamics study of di‐2‐pyridylketone in the A‐band and B‐band absorptions by using resonance Raman spectroscopy, IR and UV–visible spectroscopy

Effects of chemical analytes on zinc tetraphenylporphine thin films studied by vibrational spectroscopy and density functional theory

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