Theoretical and experimental investigation of electric field induced second harmonic generation in tetrathia 7 helicenes

Alberto Bossi; Emanuela Licandro; Stefano Maiorana; Clara Rigamonti; Stefania Righetto; G. Richard Stephenson; Milena Spassova; Edith Botek; Benoît Champagne

doi:10.1021/jp7117554

Theoretical and experimental investigation of electric field induced second harmonic generation in tetrathia 7 helicenes

Alberto Bossi, Emanuela Licandro, Stefano Maiorana, Clara Rigamonti, Stefania Righetto, G. Richard Stephenson, Milena Spassova, Edith Botek, Benoît Champagne

Chemistry of Materials and Catalysis

Research output: Contribution to journal › Article › peer-review

99 Citations (Scopus)

Abstract

In this paper, we report the first systematic experimental and theoretical investigation of the electric field induced second harmonic response of some tetrathia[7]helicene-based NLOphores. We studied six model compounds carrying the NO2, CH=CHCN, and COCF3 units as accepting groups on both the terminal thiophene positions as well as on the central benzene ring of the helicene backbone. These groups, known to be of medium and medium-strong accepting strength, allow tuning of both the electronic and structural properties of the helicenes studied. This experimental/theoretical study should set a milestone in addressing new structure-properties relationship of this class of nonconventional chiral chromophores able to show second order as well as third order NLO phenomena.

Original language	English
Pages (from-to)	7900-7907
Number of pages	8
Journal	The Journal of Physical Chemistry C
Volume	112
Issue number	21
DOIs	https://doi.org/10.1021/jp7117554
Publication status	Published - 15 Apr 2008

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10.1021/jp7117554

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title = "Theoretical and experimental investigation of electric field induced second harmonic generation in tetrathia 7 helicenes",

abstract = "In this paper, we report the first systematic experimental and theoretical investigation of the electric field induced second harmonic response of some tetrathia[7]helicene-based NLOphores. We studied six model compounds carrying the NO2, CH=CHCN, and COCF3 units as accepting groups on both the terminal thiophene positions as well as on the central benzene ring of the helicene backbone. These groups, known to be of medium and medium-strong accepting strength, allow tuning of both the electronic and structural properties of the helicenes studied. This experimental/theoretical study should set a milestone in addressing new structure-properties relationship of this class of nonconventional chiral chromophores able to show second order as well as third order NLO phenomena.",

author = "Alberto Bossi and Emanuela Licandro and Stefano Maiorana and Clara Rigamonti and Stefania Righetto and Stephenson, {G. Richard} and Milena Spassova and Edith Botek and Beno{\^i}t Champagne",

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TY - JOUR

T1 - Theoretical and experimental investigation of electric field induced second harmonic generation in tetrathia 7 helicenes

AU - Bossi, Alberto

AU - Licandro, Emanuela

AU - Maiorana, Stefano

AU - Rigamonti, Clara

AU - Righetto, Stefania

AU - Stephenson, G. Richard

AU - Spassova, Milena

AU - Botek, Edith

AU - Champagne, Benoît

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PY - 2008/4/15

Y1 - 2008/4/15

N2 - In this paper, we report the first systematic experimental and theoretical investigation of the electric field induced second harmonic response of some tetrathia[7]helicene-based NLOphores. We studied six model compounds carrying the NO2, CH=CHCN, and COCF3 units as accepting groups on both the terminal thiophene positions as well as on the central benzene ring of the helicene backbone. These groups, known to be of medium and medium-strong accepting strength, allow tuning of both the electronic and structural properties of the helicenes studied. This experimental/theoretical study should set a milestone in addressing new structure-properties relationship of this class of nonconventional chiral chromophores able to show second order as well as third order NLO phenomena.

AB - In this paper, we report the first systematic experimental and theoretical investigation of the electric field induced second harmonic response of some tetrathia[7]helicene-based NLOphores. We studied six model compounds carrying the NO2, CH=CHCN, and COCF3 units as accepting groups on both the terminal thiophene positions as well as on the central benzene ring of the helicene backbone. These groups, known to be of medium and medium-strong accepting strength, allow tuning of both the electronic and structural properties of the helicenes studied. This experimental/theoretical study should set a milestone in addressing new structure-properties relationship of this class of nonconventional chiral chromophores able to show second order as well as third order NLO phenomena.

U2 - 10.1021/jp7117554

DO - 10.1021/jp7117554

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JO - The Journal of Physical Chemistry C

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