First hyperpolarizabilities of hexa(ethynyl)benzene derivatives: Effect of conjugation length

Ming Jun Piao; Khalil Chajara; Soo Jung Yoon; Hwan Myung Kim; Seung Joon Jeon; Tae Hyun Kim; Kai Song; Inge Asselberghs; André Persoons; Koen Clays; Bong Rae Cho

doi:10.1039/b601982j

First hyperpolarizabilities of hexa(ethynyl)benzene derivatives: Effect of conjugation length

Ming Jun Piao, Khalil Chajara, Soo Jung Yoon, Hwan Myung Kim, Seung Joon Jeon, Tae Hyun Kim, Kai Song, Inge Asselberghs, André Persoons, Koen Clays, Bong Rae Cho

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

23 Citations (Scopus)

Abstract

A variety of dipolar and octupolar molecules containing CC bonds as the conjugation bridge have been synthesized and the linear and nonlinear optical properties (β) were studied. The β(0) value of the dipole increases with conjugation length, whereas that of the octupole decreases from 2a to 2b with concomitant decrease in λ_max. A further increase in the conjugation length to 3a-c increased β(0) because of the larger oscillator strength. Moreover, 3a with the most distorted structure shows the largest β(0), probably because of the dipolar contribution. On the other hand, β_yyy/β_zzz ratios are smaller than unity, probably because β_zzz is overestimated by the errors involved in the resonance correction.

Original language	English
Pages (from-to)	2273-2281
Number of pages	9
Journal	Journal of Materials Chemistry
Volume	16
Issue number	23
DOIs	https://doi.org/10.1039/b601982j
Publication status	Published - 2006

ASJC Scopus subject areas

Chemistry(all)
Materials Chemistry

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title = "First hyperpolarizabilities of hexa(ethynyl)benzene derivatives: Effect of conjugation length",

abstract = "A variety of dipolar and octupolar molecules containing CC bonds as the conjugation bridge have been synthesized and the linear and nonlinear optical properties (β) were studied. The β(0) value of the dipole increases with conjugation length, whereas that of the octupole decreases from 2a to 2b with concomitant decrease in λmax. A further increase in the conjugation length to 3a-c increased β(0) because of the larger oscillator strength. Moreover, 3a with the most distorted structure shows the largest β(0), probably because of the dipolar contribution. On the other hand, βyyy/βzzz ratios are smaller than unity, probably because βzzz is overestimated by the errors involved in the resonance correction.",

author = "Piao, {Ming Jun} and Khalil Chajara and Yoon, {Soo Jung} and Kim, {Hwan Myung} and Jeon, {Seung Joon} and Kim, {Tae Hyun} and Kai Song and Inge Asselberghs and Andr{\'e} Persoons and Koen Clays and Cho, {Bong Rae}",

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doi = "10.1039/b601982j",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - First hyperpolarizabilities of hexa(ethynyl)benzene derivatives

T2 - Effect of conjugation length

AU - Piao, Ming Jun

AU - Chajara, Khalil

AU - Yoon, Soo Jung

AU - Kim, Hwan Myung

AU - Jeon, Seung Joon

AU - Kim, Tae Hyun

AU - Song, Kai

AU - Asselberghs, Inge

AU - Persoons, André

AU - Clays, Koen

AU - Cho, Bong Rae

PY - 2006

Y1 - 2006

N2 - A variety of dipolar and octupolar molecules containing CC bonds as the conjugation bridge have been synthesized and the linear and nonlinear optical properties (β) were studied. The β(0) value of the dipole increases with conjugation length, whereas that of the octupole decreases from 2a to 2b with concomitant decrease in λmax. A further increase in the conjugation length to 3a-c increased β(0) because of the larger oscillator strength. Moreover, 3a with the most distorted structure shows the largest β(0), probably because of the dipolar contribution. On the other hand, βyyy/βzzz ratios are smaller than unity, probably because βzzz is overestimated by the errors involved in the resonance correction.

AB - A variety of dipolar and octupolar molecules containing CC bonds as the conjugation bridge have been synthesized and the linear and nonlinear optical properties (β) were studied. The β(0) value of the dipole increases with conjugation length, whereas that of the octupole decreases from 2a to 2b with concomitant decrease in λmax. A further increase in the conjugation length to 3a-c increased β(0) because of the larger oscillator strength. Moreover, 3a with the most distorted structure shows the largest β(0), probably because of the dipolar contribution. On the other hand, βyyy/βzzz ratios are smaller than unity, probably because βzzz is overestimated by the errors involved in the resonance correction.

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First hyperpolarizabilities of hexa(ethynyl)benzene derivatives: Effect of conjugation length

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