Langmuir Films of Anthracene Derivatives on Liquid Mercury II: Asymmetric Molecules

doi:10.1021/jp063937g

Title: Langmuir Films of Anthracene Derivatives on Liquid Mercury II: Asymmetric Molecules

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Abstract

The structure and phase sequence of liquid-mercury-supported Langmuir films (LFs) of anthrone and anthralin were studied by surface tensiometry and surface-specific synchrotron X-ray diffraction. In the low-coverage phase the molecules are both side-lying, rather than the flat-lying orientation found for anthracene and anthraquinone. In the high-coverage phase, the molecules are either standing up (anthrone) or remain side-lying (anthralin) on the mercury surface. In contrast with the symmetric anthracene and anthraquinone, both high-coverage phases exhibit long-range in-plane order. The order is different for the two compounds. The structural details, the role of molecular symmetry, the oxygen side groups, and the asymmetry-induced dipole moments are discussed.

Authors:: Tamam,L.; Kraack, H.; Sloutskin, E.; Ocko, B.; Pershan, P.; Ofer, E.; Deutsch, M.

Publication Date:: Mon Jan 01 00:00:00 EST 2007

Research Org.:: Brookhaven National Laboratory (BNL) National Synchrotron Light Source

Sponsoring Org.:: Doe - Office Of Science

OSTI Identifier:: 930283

Report Number(s):: BNL-80987-2008-JA
TRN: US0806724

DOE Contract Number:: DE-AC02-98CH10886

Resource Type:: Journal Article

Resource Relation:: Journal Name: Journal of Physical Chemistry C; Journal Volume: 111

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; ANTHRACENE; DIPOLE MOMENTS; EXHIBITS; FILMS; LIQUIDS; MERCURY; MOLECULES; ORIENTATION; OXYGEN; SURFACES; SYMMETRY; SYNCHROTRONS; X-RAY DIFFRACTION; national synchrotron light source

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                    Tamam,L., Kraack, H., Sloutskin, E., Ocko, B., Pershan, P., Ofer, E., and Deutsch, M. Langmuir Films of Anthracene Derivatives on Liquid Mercury II: Asymmetric Molecules.  United States: N. p., 2007. 
        Web.  doi:10.1021/jp063937g.

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                    Tamam,L., Kraack, H., Sloutskin, E., Ocko, B., Pershan, P., Ofer, E., & Deutsch, M. Langmuir Films of Anthracene Derivatives on Liquid Mercury II: Asymmetric Molecules.  United States.  doi:10.1021/jp063937g.

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                    Tamam,L., Kraack, H., Sloutskin, E., Ocko, B., Pershan, P., Ofer, E., and Deutsch, M. Mon .  
        "Langmuir Films of Anthracene Derivatives on Liquid Mercury II: Asymmetric Molecules".  United States.  
        doi:10.1021/jp063937g.

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@article{osti_930283,

  title        = {Langmuir Films of Anthracene Derivatives on Liquid Mercury II: Asymmetric Molecules},

  author       = {Tamam,L. and Kraack, H. and Sloutskin, E. and Ocko, B. and Pershan, P. and Ofer, E. and Deutsch, M.},

  abstractNote = {The structure and phase sequence of liquid-mercury-supported Langmuir films (LFs) of anthrone and anthralin were studied by surface tensiometry and surface-specific synchrotron X-ray diffraction. In the low-coverage phase the molecules are both side-lying, rather than the flat-lying orientation found for anthracene and anthraquinone. In the high-coverage phase, the molecules are either standing up (anthrone) or remain side-lying (anthralin) on the mercury surface. In contrast with the symmetric anthracene and anthraquinone, both high-coverage phases exhibit long-range in-plane order. The order is different for the two compounds. The structural details, the role of molecular symmetry, the oxygen side groups, and the asymmetry-induced dipole moments are discussed.},

  doi          = {10.1021/jp063937g},

  journal      = {Journal of Physical Chemistry C},

  number       = ,

  volume       = 111,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 2007},

  month        = {Mon Jan 01 00:00:00 EST 2007}

}

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DOI: 10.1021/jp063937g

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