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Fine-tuning polyoxometalate non-linear optical chromophores: a molecular electronic "Goldilocks" effect

Fine-tuning polyoxometalate non-linear optical chromophores: a molecular electronic "Goldilocks" effect
Fine-tuning polyoxometalate non-linear optical chromophores: a molecular electronic "Goldilocks" effect

A new aryl-imido polyoxometalate non-linear optical chromophore (POMophore) with a diphenylamino donor group attains the highest βzzz, 0 value (196 × 10-30 esu by Hyper-Rayleigh Scattering, HRS), and best transparency/non-linearity trade off yet for such materials. Stark spectroscopic and DFT investigation of this compound, plus NMe2 and carbazole analogues, show that its high performance results from a combination of strongly dipolar electronic transitions, and strong electronic communication across the π-system.

1477-9226
10415-10419
Al-Yasari, Ahmed
528d1eb8-e169-4957-be38-6fa4ed217193
Spence, Philip
7e4f04bc-d38e-4ed6-86d0-699e564553be
El Moll, Hani
d1ce124d-bbda-406b-8ee3-b5ba1d86c05d
Van Steerteghem, Nick
8acd9554-f991-4aae-8f8d-ac3c28a36ffe
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Brunschwig, Bruce S.
9963c670-c36f-476b-83e8-7bba982cbdc6
Clays, Koen
f13fe1bc-8c4d-463a-97e3-423523cf4f75
Fielden, John
44529e17-2eae-4c92-844a-46915e9ea6be
Al-Yasari, Ahmed
528d1eb8-e169-4957-be38-6fa4ed217193
Spence, Philip
7e4f04bc-d38e-4ed6-86d0-699e564553be
El Moll, Hani
d1ce124d-bbda-406b-8ee3-b5ba1d86c05d
Van Steerteghem, Nick
8acd9554-f991-4aae-8f8d-ac3c28a36ffe
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Brunschwig, Bruce S.
9963c670-c36f-476b-83e8-7bba982cbdc6
Clays, Koen
f13fe1bc-8c4d-463a-97e3-423523cf4f75
Fielden, John
44529e17-2eae-4c92-844a-46915e9ea6be

Al-Yasari, Ahmed, Spence, Philip, El Moll, Hani, Van Steerteghem, Nick, Horton, Peter N., Brunschwig, Bruce S., Clays, Koen and Fielden, John (2018) Fine-tuning polyoxometalate non-linear optical chromophores: a molecular electronic "Goldilocks" effect. Dalton Transactions, 47 (31), 10415-10419. (doi:10.1039/c8dt01491d).

Record type: Article

Abstract

A new aryl-imido polyoxometalate non-linear optical chromophore (POMophore) with a diphenylamino donor group attains the highest βzzz, 0 value (196 × 10-30 esu by Hyper-Rayleigh Scattering, HRS), and best transparency/non-linearity trade off yet for such materials. Stark spectroscopic and DFT investigation of this compound, plus NMe2 and carbazole analogues, show that its high performance results from a combination of strongly dipolar electronic transitions, and strong electronic communication across the π-system.

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More information

Accepted/In Press date: 15 May 2018
e-pub ahead of print date: 27 June 2018

Identifiers

Local EPrints ID: 424615
URI: https://eprints.soton.ac.uk/id/eprint/424615
ISSN: 1477-9226
PURE UUID: 9984847b-c657-49b7-a704-3f57a51e70b8
ORCID for Peter N. Horton: ORCID iD orcid.org/0000-0001-8886-2016

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Date deposited: 05 Oct 2018 11:39
Last modified: 14 Mar 2019 01:47

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Contributors

Author: Ahmed Al-Yasari
Author: Philip Spence
Author: Hani El Moll
Author: Nick Van Steerteghem
Author: Peter N. Horton ORCID iD
Author: Bruce S. Brunschwig
Author: Koen Clays
Author: John Fielden

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