يعرض 1 - 20 نتائج من 209 نتيجة بحث عن '"Leung, Helen O."', وقت الاستعلام: 0.67s تنقيح النتائج
  1. 1
    Academic Journal
    Preserving the symmetry of cis-1,2-difluoroethylene in the gas-phase heterodimer with hydrogen chloride: A microwave rotational study revealing a novel structure.

    المؤلفون: Leung, Helen O.1 (AUTHOR) hleung@amherst.edu, Marshall, Mark D.1 (AUTHOR) mdmarshall@amherst.edu

    المصدر: Journal of Chemical Physics. 9/14/2024, Vol. 161 Issue 10, p1-10. 10p.

    مصطلحات موضوعية: *MOLECULAR structure, *FOURIER transform spectroscopy, *HYDROGEN atom, *QUANTUM chemistry, *HYDROGEN chloride, *ISOTOPOLOGUES, *ELECTRON donors, *MICROWAVE spectroscopy


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  2. 2
    Academic Journal
    Tuning Intermolecular Interactions for Chiral Analysis: The Microwave Spectra and Molecular Structures of the Chiral Tag Candidates cis- and trans-2-Fluoro-3-(trifluoromethyl)oxirane and Their Gas-Phase Heterodimers with the Argon Atom

    المؤلفون: Leung, Helen O., Marshall, Mark D., Aucoin, Jordan M., Horowitz, Jonah R.

    المساهمون: National Science Foundation, Beckmann Scholars Program

    المصدر: The Journal of Physical Chemistry A ; volume 128, issue 43, page 9433-9446 ; ISSN 1089-5639 1520-5215

    الاتاحة: http://dx.doi.org/10.1021/acs.jpca.4c05830
    https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.4c05830

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  3. 3
    Academic Journal
    Modulating Electrostatic Properties and Noncovalent Interactions via Structural Isomerism: The Microwave Spectra and Molecular Structures of ( E)- and ( Z)-1,2,3,3,3-Pentafluoropropene and Their Gas-Phase Heterodimers with the Argon Atom

    المؤلفون: Leung, Helen O., Marshall, Mark D., Tayama, Kazuki M., Hauschildt, Maximillian D., Rose, Elizabeth A.

    المساهمون: Division of Chemistry, Amherst College

    المصدر: The Journal of Physical Chemistry A ; volume 128, issue 40, page 8739-8750 ; ISSN 1089-5639 1520-5215

    الاتاحة: http://dx.doi.org/10.1021/acs.jpca.4c05449
    https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.4c05449

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  4. 4
    Academic Journal
    The microwave spectra and molecular structures of (Z)-1-chloro-3,3,3-trifluoropropene and its gas-phase heterodimer with the argon atom

    المؤلفون: Leung, Helen O., Marshall, Mark D., Hong, Seohyun, Hoque, Laboni

    المساهمون: National Science Foundation

    المصدر: Journal of Molecular Spectroscopy ; volume 394, page 111779 ; ISSN 0022-2852

    الاتاحة: http://dx.doi.org/10.1016/j.jms.2023.111779
    https://api.elsevier.com/content/article/PII:S0022285223000449?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022285223000449?httpAccept=text/plain

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  5. 5
    Academic Journal
    The microwave spectra and molecular structures of the chiral and achiral rotamers of 2,3,3-trifluoropropene and their gas-phase heterodimers with the argon atom

    المؤلفون: Leung, Helen O., Marshall, Mark D., Ahmad, Taha Z., Borden, David W., Hoffman, Caitlin A., Kim, Navie A.

    المساهمون: Amherst College, National Science Foundation

    المصدر: Journal of Molecular Spectroscopy ; volume 387, page 111656 ; ISSN 0022-2852

    الاتاحة: http://dx.doi.org/10.1016/j.jms.2022.111656
    https://api.elsevier.com/content/article/PII:S0022285222000753?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022285222000753?httpAccept=text/plain

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  6. 6
    Academic Journal
    The microwave spectra and molecular structures of (E)-1-chloro-1,2-difluoroethylene and its complex with the argon atom

    المؤلفون: Leung, Helen O., Marshall, Mark D., Bozzi, Aaron T., Horowitz, Jonah R., Nino, Andres C., Tandon, Hannah K., Yoon, Leonard

    المساهمون: National Science Foundation

    المصدر: Journal of Molecular Spectroscopy ; volume 381, page 111520 ; ISSN 0022-2852

    الاتاحة: http://dx.doi.org/10.1016/j.jms.2021.111520
    https://api.elsevier.com/content/article/PII:S0022285221001004?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022285221001004?httpAccept=text/plain

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  7. 7
    Academic Journal
    Assessing the performance of rotational spectroscopy in chiral analysis

    المؤلفون: Domingos, Sérgio R., Pérez, Cristóbal, Marshall, Mark D., Leung, Helen O., Schnell, Melanie

    المصدر: Chemical science 11(40), 10863 - 10870 (2020). doi:10.1039/D0SC03752D

    مصطلحات موضوعية: info:eu-repo/classification/ddc/540

    جغرافية الموضوع: DE

    Relation: info:eu-repo/semantics/altIdentifier/wos/WOS:000580661900001; info:eu-repo/semantics/altIdentifier/issn/2041-6520; info:eu-repo/semantics/altIdentifier/pmid/pmid:34123188; info:eu-repo/semantics/altIdentifier/issn/2041-6539; https://bib-pubdb1.desy.de/record/454444; https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00518%22

    الاتاحة: https://bib-pubdb1.desy.de/record/454444
    https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00518%22

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  8. 8
    Academic Journal
    Exploring the Forces Contributing to Noncovalent Bonding by Microwave Spectroscopy and Structural Characterization of Gas-Phase Heterodimers of Protic Acids with Haloethylenes

    المؤلفون: Leung, Helen O., Marshall, Mark D.

    المساهمون: Division of Chemistry, Amherst College, Arnold and Mabel Beckman Foundation

    المصدر: The Journal of Physical Chemistry A ; volume 123, issue 51, page 10846-10861 ; ISSN 1089-5639 1520-5215

    الاتاحة: http://dx.doi.org/10.1021/acs.jpca.9b07960
    http://pubs.acs.org/doi/pdf/10.1021/acs.jpca.9b07960
    https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.9b07960

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  9. 9
    Academic Journal
    Microwave Spectrum and Novel Molecular Structure of ( Z)-1-Chloro-3,3,3-trifluoropropene–Acetylene

    المؤلفون: Leung, Helen O., Marshall, Mark D., Hong, Seohyun

    المساهمون: Division of Chemistry

    المصدر: The Journal of Physical Chemistry A ; volume 127, issue 30, page 6241-6250 ; ISSN 1089-5639 1520-5215

    الاتاحة: http://dx.doi.org/10.1021/acs.jpca.3c03517
    https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.3c03517

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  10. 10
    Academic Journal
    Molecular Structures and Microwave Spectra of the Gas-Phase Homodimers of 3-Fluoro-1,2-epoxypropane and 3,3-Difluoro-1,2-epoxypropane

    المؤلفون: Marshall, Mark D., Leung, Helen O.

    المساهمون: Division of Chemistry

    المصدر: The Journal of Physical Chemistry A ; volume 127, issue 30, page 6267-6274 ; ISSN 1089-5639 1520-5215

    الاتاحة: http://dx.doi.org/10.1021/acs.jpca.3c03643
    https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.3c03643

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  11. 11
    Academic Journal
    The microwave spectrum and molecular structure of 3,3-difluoro-1,2-epoxypropane and its complex with the argon atom

    المؤلفون: Marshall, Mark D., Leung, Helen O.

    المساهمون: National Science Foundation

    المصدر: Journal of Molecular Spectroscopy ; volume 350, page 18-26 ; ISSN 0022-2852

    الاتاحة: http://dx.doi.org/10.1016/j.jms.2018.05.003
    https://api.elsevier.com/content/article/PII:S0022285218301097?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022285218301097?httpAccept=text/plain

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  12. 12
    Academic Journal
    The effect of ortho-fluorination on intermolecular interactions of pyridine: Microwave spectrum and structure of the CO2 – 2,6-difluoropyridine weakly bound complex

    المؤلفون: Dewberry, Christopher T., Mueller, Jessica L., Mackenzie, Rebecca B., Timp, Brooke A., Marshall, Mark D., Leung, Helen O., Leopold, Kenneth R.

    المساهمون: University of Minnesota, National Science Foundation

    المصدر: Journal of Molecular Structure ; volume 1146, page 373-379 ; ISSN 0022-2860

    الاتاحة: http://dx.doi.org/10.1016/j.molstruc.2017.06.015
    https://api.elsevier.com/content/article/PII:S0022286017307913?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022286017307913?httpAccept=text/plain

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  13. 13
    Academic Journal
    The microwave spectrum and molecular structure of Ar-2,3,3,3-tetrafluoropropene

    المؤلفون: Leung, Helen O., Marshall, Mark D., Wronkovich, Miles A.

    المساهمون: National Science Foundation

    المصدر: Journal of Molecular Spectroscopy ; volume 337, page 80-85 ; ISSN 0022-2852

    الاتاحة: http://dx.doi.org/10.1016/j.jms.2017.04.012
    https://api.elsevier.com/content/article/PII:S0022285217300334?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022285217300334?httpAccept=text/plain

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  14. 14
    Academic Journal
    Exploring the sterically disfavored binding of acetylene to a geminal olefinic hydrogen-fluorine atom pair: The microwave spectrum and molecular structure of cis-1,2-difluoroethylene–acetylene.

    المؤلفون: Leung, Helen O.1 (AUTHOR) hleung@amherst.edu, Marshall, Mark D.1 (AUTHOR)

    المصدر: Journal of Chemical Physics. 1/21/2020, Vol. 152 Issue 3, p1-9. 9p. 4 Diagrams, 3 Charts, 1 Graph.

    مصطلحات موضوعية: *ISOTOPOLOGUES, *MOLECULAR structure, *MOLECULAR spectra, *FOURIER transform spectroscopy, *ACETYLENE, *ATOMS, *CHLORINE


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  15. 15
    Academic Journal
    Examining the gas-phase homodimers of 3,3,3-trifluoro-1,2-epoxypropane using quantum chemistry and microwave spectroscopy

    المؤلفون: Marshall, Mark D., Leung, Helen O., Domingos, Sérgio R., Krin, Anna, Schnell, Melanie, Seifert, Nathan A., Xu, Yunjie, Jäger, Wolfgang

    المصدر: Physical chemistry, chemical physics 24(46), 28495 - 28505 (2022). doi:10.1039/D2CP04663F

    مصطلحات موضوعية: info:eu-repo/classification/ddc/540

    جغرافية الموضوع: DE

    Relation: info:eu-repo/semantics/altIdentifier/issn/1463-9084; info:eu-repo/semantics/altIdentifier/issn/1463-9076; info:eu-repo/semantics/altIdentifier/wos/WOS:000888577600001; info:eu-repo/semantics/altIdentifier/pmid/36408893; https://bib-pubdb1.desy.de/record/491633; https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2023-00324%22

    الاتاحة: https://bib-pubdb1.desy.de/record/491633
    https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2023-00324%22

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  16. 16
    Book
    Problems and solutions to accompany Donald A. McQuarrie's Quantum chemistry / Helen O. Leung, Mark D. Marshall.

    المؤلفون: Leung, Helen O.

    المساهمون: Marshall, Mark D.

    URL الوصول: http://katalog.nukat.edu.pl/lib/item?id=chamo:2080492&theme=nukat

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  17. 17
    Academic Journal
    The microwave spectrum and molecular structure of the gas-phase heterodimer formed between argon and glycidol

    المؤلفون: Leung, Helen O., Marshall, Mark D., Horowitz, Jonah R., Stuart, Devon J.

    المساهمون: National Science Foundation

    المصدر: Journal of Molecular Spectroscopy ; volume 375, page 111407 ; ISSN 0022-2852

    الاتاحة: http://dx.doi.org/10.1016/j.jms.2020.111407
    https://api.elsevier.com/content/article/PII:S0022285220301752?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S0022285220301752?httpAccept=text/plain

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  18. 18
    Academic Journal
    Straining to Put the Pieces Together: The Molecular Structure of ( E)-1-Chloro-1,2-difluoroethylene–Acetylene from Microwave Spectroscopy

    المؤلفون: Leung, Helen O., Marshall, Mark. D., Mlaver, Eli

    المساهمون: Division of Chemistry

    المصدر: The Journal of Physical Chemistry A ; volume 125, issue 31, page 6722-6730 ; ISSN 1089-5639 1520-5215

    الاتاحة: http://dx.doi.org/10.1021/acs.jpca.1c05169
    https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.1c05169

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  19. 19
    Academic Journal
    The gas-phase structure of the asymmetric, trans-dinitrogen tetroxide (N2O4), formed by dimerization of nitrogen dioxide (NO2), from rotational spectroscopy and ab initio quantum chemistry.

    المؤلفون: Seifert, Nathan A., Zaleski, Daniel P., Fehnel, Robert, Goswami, Mausumi, Pate, Brooks H., Lehmann, Kevin K., Leung, Helen O., Marshall, Mark D., Stanton, John F.

    المصدر: Journal of Chemical Physics; 2017, Vol. 146 Issue 13, p1-7, 7p, 2 Diagrams, 4 Charts, 1 Graph

    مصطلحات موضوعية: GAS phase reactions, CRYSTAL structure, ASYMMETRY (Chemistry), NITROGEN tetroxide, QUANTUM chemistry, DIMERIZATION, SPECTRUM analysis


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  20. 20
    Conference
    THE MICROWAVE SPECTRUM AND MOLECULAR STRUCTURE OF 1-CHLORO-1-FLUOROETHYLENE–HYDROGEN CHLORIDE

    المؤلفون: Leung, Helen O.

    المساهمون: Marshall, Mark D., Hoque, Laboni

    مصطلحات موضوعية: Mini-symposium: Non-covalent Interactions

    Relation: http://hdl.handle.net/2142/104301

    الاتاحة: http://hdl.handle.net/2142/104301

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