Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations

P. Changenet; F. Hache

doi:10.1117/12.2539823

Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Time-resolved circular dichroism (TR-CD) is a powerful tool for probing the conformational dynamics of molecules over large time-scales. By using Binaphthol and two bridged derivatives (PL1 and PL2) as chiral prototypes, we present the first comprehensive study of this type in the middle UV, combining femtosecond TR-CD and quantum mechanical calculations (TD-DFT). We show that excitation of the three compounds induces large variations of their transient CD signals, in sharp contrast to those of their achiral transient absorption, which arise both from the alteration of the electronic distribution and the change of the dihedral angle in the excited state.

Original language	English
Title of host publication	Organic Photonic Materials and Devices XXII
Editors	Christopher E. Tabor, Francois Kajzar, Toshikuni Kaino
Publisher	SPIE
ISBN (Electronic)	9781510633179
DOIs	https://doi.org/10.1117/12.2539823
Publication status	Published - 1 Jan 2020
Event	Organic Photonic Materials and Devices XXII 2020 - San Francisco, United States Duration: 5 Feb 2020 → 6 Feb 2020

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11277
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Organic Photonic Materials and Devices XXII 2020
Country/Territory	United States
City	San Francisco
Period	5/02/20 → 6/02/20

Keywords

Binaphthol derivative
Quantum calculations
Time-resolved circular dichroism

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10.1117/12.2539823

Cite this

Changenet, P., & Hache, F. (2020). Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations. In C. E. Tabor, F. Kajzar, & T. Kaino (Eds.), Organic Photonic Materials and Devices XXII Article 112770W (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11277). SPIE. https://doi.org/10.1117/12.2539823

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title = "Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations",

abstract = "Time-resolved circular dichroism (TR-CD) is a powerful tool for probing the conformational dynamics of molecules over large time-scales. By using Binaphthol and two bridged derivatives (PL1 and PL2) as chiral prototypes, we present the first comprehensive study of this type in the middle UV, combining femtosecond TR-CD and quantum mechanical calculations (TD-DFT). We show that excitation of the three compounds induces large variations of their transient CD signals, in sharp contrast to those of their achiral transient absorption, which arise both from the alteration of the electronic distribution and the change of the dihedral angle in the excited state.",

keywords = "Binaphthol derivative, Quantum calculations, Time-resolved circular dichroism",

author = "P. Changenet and F. Hache",

note = "Publisher Copyright: {\textcopyright} 2020 SPIE.; Organic Photonic Materials and Devices XXII 2020 ; Conference date: 05-02-2020 Through 06-02-2020",

year = "2020",

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doi = "10.1117/12.2539823",

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Changenet, P & Hache, F 2020, Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations. in CE Tabor, F Kajzar & T Kaino (eds), Organic Photonic Materials and Devices XXII., 112770W, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11277, SPIE, Organic Photonic Materials and Devices XXII 2020, San Francisco, United States, 5/02/20. https://doi.org/10.1117/12.2539823

Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations. / Changenet, P.; Hache, F.
Organic Photonic Materials and Devices XXII. ed. / Christopher E. Tabor; Francois Kajzar; Toshikuni Kaino. SPIE, 2020. 112770W (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11277).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations

AU - Changenet, P.

AU - Hache, F.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Time-resolved circular dichroism (TR-CD) is a powerful tool for probing the conformational dynamics of molecules over large time-scales. By using Binaphthol and two bridged derivatives (PL1 and PL2) as chiral prototypes, we present the first comprehensive study of this type in the middle UV, combining femtosecond TR-CD and quantum mechanical calculations (TD-DFT). We show that excitation of the three compounds induces large variations of their transient CD signals, in sharp contrast to those of their achiral transient absorption, which arise both from the alteration of the electronic distribution and the change of the dihedral angle in the excited state.

AB - Time-resolved circular dichroism (TR-CD) is a powerful tool for probing the conformational dynamics of molecules over large time-scales. By using Binaphthol and two bridged derivatives (PL1 and PL2) as chiral prototypes, we present the first comprehensive study of this type in the middle UV, combining femtosecond TR-CD and quantum mechanical calculations (TD-DFT). We show that excitation of the three compounds induces large variations of their transient CD signals, in sharp contrast to those of their achiral transient absorption, which arise both from the alteration of the electronic distribution and the change of the dihedral angle in the excited state.

KW - Binaphthol derivative

KW - Quantum calculations

KW - Time-resolved circular dichroism

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DO - 10.1117/12.2539823

M3 - Conference contribution

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Organic Photonic Materials and Devices XXII

A2 - Tabor, Christopher E.

A2 - Kajzar, Francois

A2 - Kaino, Toshikuni

PB - SPIE

T2 - Organic Photonic Materials and Devices XXII 2020

Y2 - 5 February 2020 through 6 February 2020

ER -

Unveiling excited-state chirality of binaphthols by sub-picosecond circular dichroism and quantum-chemical calculations

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Keywords

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