Break down of the Born–Oppenheimer approximation is caused by mixing of electronic and vibrational transitions in the radical cations of some conjugated polymers, resulting in unusually intense vibrational bands known as infrared active vibrations (IRAVs). Here, we investigate the mechanism of this amplification, and show that it provides insights into intramolecular charge migration. Spectroelectrochemical time-resolved infrared (TRIR) and two-dimensional infrared (2D-IR) spectroscopies were used to investigate the radical cations of two butadiyne-linked conjugated porphyrin oligomers, a linear dimer and a cyclic hexamer. The 2D-IR spectra reveal strong coupling between all the IRAVs and the electronic π–π* polaron band. Intramolecular vib...
In order to achieve third-generation solar devices, the basic photophysics of light-absorbing materi...
The excited state dynamics of carbonyl carotenoids is very complex because of the coupling of single...
Infrared (IR) excitation is known to change electron-transfer kinetics in molecules. We use nonequil...
Break down of the Born–Oppenheimer approximation is caused by mixing of electronic and vibrational t...
The radical cations of a family of π-conjugated porphyrin arrays have been investigated: linear chai...
Because of its crucial role in many areas of science and technology, photoinduced electron transfer ...
Infrared-active vibrational (IRAV) modes are specific optical fingerprints to probe the density, dyn...
Organic pi-conjugated polymers are deemed to be soft materials with strong electron-phonon coupling,...
The radical cations of a family of π-conjugated porphyrin arrays have been investigated: linear chai...
Understanding how noncovalent interactions affect dynamics and energetics is essential for predictin...
The general theme of this thesis is a study of electronic communication within porphyrin oligomers. ...
Understanding how noncovalent interactions affect dynamics and energetics is essential for predictin...
International audienceThe concerted interplay between reactive nuclear and electronic motions in mol...
In this work we analyzed the infrared and visible transient absorption spectra of all-trans-β-apo-8'...
International audienceUnraveling ultrafast molecular processes initiated by energetic radiation prov...
In order to achieve third-generation solar devices, the basic photophysics of light-absorbing materi...
The excited state dynamics of carbonyl carotenoids is very complex because of the coupling of single...
Infrared (IR) excitation is known to change electron-transfer kinetics in molecules. We use nonequil...
Break down of the Born–Oppenheimer approximation is caused by mixing of electronic and vibrational t...
The radical cations of a family of π-conjugated porphyrin arrays have been investigated: linear chai...
Because of its crucial role in many areas of science and technology, photoinduced electron transfer ...
Infrared-active vibrational (IRAV) modes are specific optical fingerprints to probe the density, dyn...
Organic pi-conjugated polymers are deemed to be soft materials with strong electron-phonon coupling,...
The radical cations of a family of π-conjugated porphyrin arrays have been investigated: linear chai...
Understanding how noncovalent interactions affect dynamics and energetics is essential for predictin...
The general theme of this thesis is a study of electronic communication within porphyrin oligomers. ...
Understanding how noncovalent interactions affect dynamics and energetics is essential for predictin...
International audienceThe concerted interplay between reactive nuclear and electronic motions in mol...
In this work we analyzed the infrared and visible transient absorption spectra of all-trans-β-apo-8'...
International audienceUnraveling ultrafast molecular processes initiated by energetic radiation prov...
In order to achieve third-generation solar devices, the basic photophysics of light-absorbing materi...
The excited state dynamics of carbonyl carotenoids is very complex because of the coupling of single...
Infrared (IR) excitation is known to change electron-transfer kinetics in molecules. We use nonequil...