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Exceptional Molecular Hyperpolarizabilities in Twisted π-Electron System Chromophores

Authors

  • Hu Kang,

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Antonio Facchetti Dr.,

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Peiwang Zhu Dr.,

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Hua Jiang Dr.,

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Yu Yang Dr.,

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Elena Cariati Prof.,

    1. Dipartimento di Chimica Inorganica Metallorganica e Analitica and Centro di Eccellenza CIMAINA dell'Università di Milano and Unità di Ricerca dell'INSTM di Milano, Via Venezian 21, 20133 Milano, Italy
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  • Stefania Righetto,

    1. Dipartimento di Chimica Inorganica Metallorganica e Analitica and Centro di Eccellenza CIMAINA dell'Università di Milano and Unità di Ricerca dell'INSTM di Milano, Via Venezian 21, 20133 Milano, Italy
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  • Renato Ugo Prof.,

    1. Dipartimento di Chimica Inorganica Metallorganica e Analitica and Centro di Eccellenza CIMAINA dell'Università di Milano and Unità di Ricerca dell'INSTM di Milano, Via Venezian 21, 20133 Milano, Italy
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  • Cristiano Zuccaccia Dr.,

    1. Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
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  • Alceo Macchioni Prof.,

    1. Dipartimento di Chimica, Università di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
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  • Charlotte L. Stern,

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Zhifu Liu Dr.,

    1. Department of Electrical and Computer Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • Seng-Tiong Ho Prof.,

    1. Department of Electrical and Computer Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • Tobin J. Marks Prof.

    1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA, Fax: (+1) 847-491-2990
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  • Supported by DARPA/ONR (SP01P7001R-A1/N00014-00-C), the NSF-Europe Program (DMR-0353831), and MIUR(PRIN 2004–2005). We thank Dr. S. Keinan and Prof. M. Ratner for computational collaboration.

Abstract

original image

Elektrooptische Chromophore mit verdrehtem π-System und außergewöhnlichen molekularen Hyperpolarisierbarkeiten (−488 000×10−48 esu bei 1907 nm) wurden entworfen und synthetisiert. Die Kristallstrukturanalyse deckt große Verdrillungswinkel und einen hoch ladungsgetrennten zwitterionischen Grundzustand auf. Experimente mit verpolten Wirt-Gast-Polymeren, die solche Chromophore enthalten, zeigen das Potenzial für elektrooptische Anwendungen auf.

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