Switching of the triplet excited state of the C60-dimethylaminostyryl BODIPY dyads/triads

2015 ◽  
Vol 3 (3) ◽  
pp. 538-550 ◽  
Author(s):  
Ling Huang ◽  
Jianzhang Zhao
Keyword(s):  
Excited State ◽  
Absorption Spectroscopy ◽  
Triplet Excited State ◽  
Acid Base ◽  
Time Resolved ◽  
Difference Absorption

Switching of the triplet excited state of BODIPY-C60 dyads/triads with acid/base was studied with nanosecond time-resolved transient difference absorption spectroscopy.

Triplet Excited State Distortions in a Pyrazolate Bridged Platinum Dimer Measured by X-ray Transient Absorption Spectroscopy

2010 ◽  
Vol 114 (48) ◽  
pp. 12780-12787 ◽  
Author(s):  
Jenny V. Lockard ◽  
Aaron A. Rachford ◽  
Grigory Smolentsev ◽  
Andrew B. Stickrath ◽  
Xianghuai Wang ◽  
...  
Keyword(s):  
Excited State ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Triplet Excited State ◽  
X Ray

scholarly journals Structure of the triplet excited state of bromanil from time-resolved resonance Raman spectra and simulation

2001 ◽  
Vol 115 (13) ◽  
pp. 6106-6114 ◽  
Author(s):  
Mrinalini Puranik ◽  
Siva Umapathy ◽  
Jaap G. Snijders ◽  
Jayaraman Chandrasekhar
Keyword(s):  
Excited State ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Triplet Excited State ◽  
Time Resolved ◽  
Resonance Raman Spectra

Ultrafast photoisomerization of pinacyanol: watching an excited state reaction transiting from barrier to barrierless forms

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45210-45218
Author(s):  
Fei Ma ◽  
Arkady Yartsev
Keyword(s):  
Excited State ◽  
Absorption Spectroscopy ◽  
Time Resolved

Photoisomerization of 1,1′-diethyl-2,2′-carbocyanine iodide (pinacyanol) in alcohols was investigated by means of femtosecond time-resolved absorption spectroscopy.

Excited State Dynamics of Novel Diporphyrins with Dissimilar Cores

1999 ◽  
Vol 03 (01) ◽  
pp. 70-77 ◽  
Author(s):  
M. RAVIKUMAR ◽  
R. P. PANDIAN ◽  
T. K. CHANDRASHEKAR
Keyword(s):  
Energy Transfer ◽  
Excited State ◽  
Excitation Wavelength ◽  
Triplet Excited State ◽  
Lifetime Measurements ◽  
Time Resolved ◽  
Fluorescence Studies ◽  
Axial Ligation ◽  
Excitation Time ◽  
The Individual

The singlet and triplet excited state properties of two diporphyrins, H 2- H and Zn - H , are described. Steady state fluorescence studies indicate that the emission of the H 2- H diporphyrin is dependent on the excitation wavelength and is dominated by the emission of the individual constituent monomers at their respective excitation. Time-resolved studies show two lifetimes ascribable to the normal and thiaporphyrin subunits. However, the emission of the Zn - H diporphyrin is dominated by the thiaporphyrin subunit irrespective of the wavelength of excitation, suggesting an energy transfer from the Zn porphyrin subunit to the thiaporphyrin subunit. Lifetime measurements in toluene show two lifetimes due to open and folded conformations, while in DMF an additional component due to axial ligation is observed. The efficiency of energy transfer is moderately higher in DMF (72%) than in toluene (68%). Triplet ESR studies on the H 2- H dimer reveal a localized triplet with ZFS parameters and ESP pattern the same as for the individual monomers. On the other hand, triplet ESR of the Zn - H diporphyrin reveals triplet characteristics of the thiaporphyrin subunit, indicating an energy transfer in the triplet state.

Excited State Structural Dynamics Probed with Time-Resolved Sulfur K-edge X-ray Absorption Spectroscopy

2014 ◽  
Author(s):  
Matthew R. Ross ◽  
Benjamin E Van Kuiken ◽  
Matthew L. Strader ◽  
Hana Cho ◽  
Amy Cordones-Hahn ◽  
...  
Keyword(s):  
Excited State ◽  
Absorption Spectroscopy ◽  
Structural Dynamics ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption
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