Bridge Improvement Work: Maximising Non-Linear Optical Performance in Polyoxometalate Derivatives

Claire F. Jones; Bethany R. Hood; Yovan de Coene; Ivan Lopez-Poves; Benoît Champagne; Koen Clays; John Fielden

doi:10.1039/d3cc05433k

Bridge Improvement Work: Maximising Non-Linear Optical Performance in Polyoxometalate Derivatives

Claire F. Jones, Bethany R. Hood, Yovan de Coene, Ivan Lopez-Poves, Benoît Champagne, Koen Clays, John Fielden

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

Abstract

New phenyl and stilbene-bridged polyoxometalate (POM) charge-transfer chromophores with diphenylamino donor groups produce, respectively, the highest intrinsic and absolute quadratic hyperpolarisabilities measured for such species. The β _0,zzz obtained for the phenyl bridge - at 180 × 10 ⁻³⁰ esu - is remarkable for a short conjugated system while changing to the stilbene (260 × 10 ⁻³⁰ esu) produces a substantial increase in non-linearity for a minimal red-shift in the absorption profile. Together with TD-DFT calculations, the results show that maximising conjugation in the π-bridge is vital to high performance in such “POMophores”.

Original language	English
Pages (from-to)	1731-1734
Number of pages	4
Journal	Chemical Communications
Volume	60
Issue number	13
DOIs	https://doi.org/10.1039/d3cc05433k
Publication status	Published - 11 Jan 2024

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title = "Bridge Improvement Work: Maximising Non-Linear Optical Performance in Polyoxometalate Derivatives",

abstract = "New phenyl and stilbene-bridged polyoxometalate (POM) charge-transfer chromophores with diphenylamino donor groups produce, respectively, the highest intrinsic and absolute quadratic hyperpolarisabilities measured for such species. The β 0,zzz obtained for the phenyl bridge - at 180 × 10 −30 esu - is remarkable for a short conjugated system while changing to the stilbene (260 × 10 −30 esu) produces a substantial increase in non-linearity for a minimal red-shift in the absorption profile. Together with TD-DFT calculations, the results show that maximising conjugation in the π-bridge is vital to high performance in such “POMophores”.",

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AU - Jones, Claire F.

AU - Hood, Bethany R.

AU - de Coene, Yovan

AU - Lopez-Poves, Ivan

AU - Champagne, Benoît

AU - Clays, Koen

AU - Fielden, John

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N2 - New phenyl and stilbene-bridged polyoxometalate (POM) charge-transfer chromophores with diphenylamino donor groups produce, respectively, the highest intrinsic and absolute quadratic hyperpolarisabilities measured for such species. The β 0,zzz obtained for the phenyl bridge - at 180 × 10 −30 esu - is remarkable for a short conjugated system while changing to the stilbene (260 × 10 −30 esu) produces a substantial increase in non-linearity for a minimal red-shift in the absorption profile. Together with TD-DFT calculations, the results show that maximising conjugation in the π-bridge is vital to high performance in such “POMophores”.

AB - New phenyl and stilbene-bridged polyoxometalate (POM) charge-transfer chromophores with diphenylamino donor groups produce, respectively, the highest intrinsic and absolute quadratic hyperpolarisabilities measured for such species. The β 0,zzz obtained for the phenyl bridge - at 180 × 10 −30 esu - is remarkable for a short conjugated system while changing to the stilbene (260 × 10 −30 esu) produces a substantial increase in non-linearity for a minimal red-shift in the absorption profile. Together with TD-DFT calculations, the results show that maximising conjugation in the π-bridge is vital to high performance in such “POMophores”.

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JO - Chemical Communications

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Bridge Improvement Work: Maximising Non-Linear Optical Performance in Polyoxometalate Derivatives

Abstract

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