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New Approaches to Stretched Film Sample Alignment and Data Collection for Vibrational Linear Dichroism

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F23%3A73620133" target="_blank" >RIV/61989592:15310/23:73620133 - isvavai.cz</a>

  • Result on the web

    <a href="https://pubs.acs.org/doi/epdf/10.1021/acsomega.3c05774" target="_blank" >https://pubs.acs.org/doi/epdf/10.1021/acsomega.3c05774</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1021/acsomega.3c05774" target="_blank" >10.1021/acsomega.3c05774</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    New Approaches to Stretched Film Sample Alignment and Data Collection for Vibrational Linear Dichroism

  • Original language description

    Rapid measurements of vibrational linear dichroism (VLD) infrared spectra are shown to be possible by using stretched polymer films and an extension of existing instrumentation designed for vibrational circular dichroism spectroscopy. Earlier techniques can be extended using additional inexpensive polymer substrates to record good-quality VLD spectra of a significantly wider range of compounds with comparatively short sample-preparation times. The polymer substrates used, polyethylene and polytetrafluoroethylene, are commonly available and inexpensive, and samples are more easily prepared than that for many earlier stretched-film and crystal studies. Data are presented for neutral hydrophobic organic molecules on hydrophobic films including acridine, anthracene, fluorene, and recently synthesized S-(4-((4-cyanophenyl)ethynyl)phenyl)ethanethioate. We extend the approach to polar or ionic species, including 2,2′-bipyridine, 1,10-phenanthroline, and sodium dodecyl sulfate, by oxidizing polyethylene films to change their wetting properties. The combination of new instrumentation and modified sample preparation methods is useful in basic spectroscopy for untangling and assigning complicated infrared spectra. Nevertheless, it is not a panacea as surface-adsorbed molecules are often not monodispersed, and higher analyte concentrations can lead to aggregation and resonance phenomena that have previously been observed for infrared spectra on surfaces. These effects can be assessed by varying the sample concentration. The focus of this paper is experimental, and detailed analysis of most of the spectra lies outside its scope, including some well-studied compounds such as acridine and anthracene that allow comparisons with earlier research.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10403 - Physical chemistry

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    ACS Omega

  • ISSN

    2470-1343

  • e-ISSN

  • Volume of the periodical

    8

  • Issue of the periodical within the volume

    40

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    37490-37500

  • UT code for WoS article

    001074978400001

  • EID of the result in the Scopus database

    2-s2.0-85174964794