Bridge improvement work: maximising non-linear optical performance in polyoxometalate derivatives

Jones, Claire F. and Hood, Bethany R. and de Coene, Yovan and Lopez-Poves, Ivan and Champagne, Benoît and Clays, Koen and Fielden, John (2024) Bridge improvement work: maximising non-linear optical performance in polyoxometalate derivatives. Chemical Communications, 60 (13). pp. 1731-1734. ISSN 1359-7345

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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”.

Item Type:
Journal Article
Journal or Publication Title:
Chemical Communications
Uncontrolled Keywords:
Research Output Funding/no_not_funded
Subjects:
?? electronic, optical and magnetic materialsinorganic chemistrymaterials chemistryno - not fundedyesmaterials chemistrygeneral chemistryelectronic, optical and magnetic materialsinorganic chemistrysurfaces, coatings and filmsmetals and alloysceramics and co ??
ID Code:
213517
Deposited By:
Deposited On:
26 Jan 2024 01:33
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Oct 2024 23:29