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  • 1
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    Spectroscopic determination of the water pair potential (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-13
    Description: A polarizable water pair potential was determined by fitting a potential form to microwave, terahertz, and mid-infrared (D2O)2 spectra through a rigorous calculation of the water dimer eigenstates. It accurately reproduces most ground state vibration-rotation-tunneling spectra and yields excellent second viral coefficients. The calculated dimer structure and dipole moment are very close to those determined from microwave spectroscopy and high-level ab initio calculations. The dimer binding energy and acceptor switching and donor-acceptor interchange tunneling barriers are in excellent agreement with recent ab initio theory, as are cyclic water trimer and tetramer structures and binding energies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fellers, R S -- Leforestier, C -- Braly, L B -- Brown, M G -- Saykally, R J -- New York, N.Y. -- Science. 1999 May 7;284(5416):945-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley 94720-1460, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10320371" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Deuterium Oxide/*chemistry ; Dimerization ; Hydrogen Bonding ; Microwaves ; *Models, Molecular ; Regression Analysis ; Spectrum Analysis/methods ; Water/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    The C7 cluster: structure and infrared frequencies (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-08-24
    Description: Observation and characterization of the C7 cluster are reported. Carbon clusters are produced by laser vaporization of a graphite target followed by supersonic expansion of the vaporized material within a gas dynamically focused argon jet. Thirty-six sequential rovibrational lines of the nu 4 antisymmetric stretch fundamental of C7 are probed by gated detection of diode laser absorption. The observed spectrum is characteristic of a symmetrical linear molecule. Analysis of the spectrum indicates an effective average bond length of 1.2736(4) angstroms and a vibrational frequency of 2138.1951(10) reciprocal centimeters, in excellent agreement with ab initio calculations. This work will facilitate the astrophysical detection of this cluster.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heath, J R -- Sheeks, R A -- Cooksy, A L -- Saykally, R J -- New York, N.Y. -- Science. 1990 Aug 24;249:895-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11538081" target="_blank"〉PubMed〈/a〉
    Keywords: Argon ; Astronomy/instrumentation/*methods ; Carbon/*analysis/*chemistry ; Lasers ; *Solar System ; Spectrophotometry, Infrared ; Spectrum Analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Tunable far-IR laser spectroscopy of jet-cooled carbon clusters: the nu 2 bending vibration of C3 (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-08-24
    Description: Seven rovibrational transitions of the (01(1)0) 〈-- (00(0)0) fundamental bending band of C3 have been measured with high precision with the use of a tunable far-infrared laser spectrometer. The C3 molecules were produced by laser vaporization of a graphite rod and cooled in a supersonic expansion. The astrophysically important nu 2 fundamental frequency is determined to be 63.416529(40) cm-1. These measurements provide the basis for studies of C3 in the interstellar medium with far-infrared astronomy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmuttenmaer, C A -- Cohen, R C -- Pugliano, N -- Heath, J R -- Cooksy, A L -- Busarow, K L -- Saykally, R J -- New York, N.Y. -- Science. 1990 Aug 24;249:897-900.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11538082" target="_blank"〉PubMed〈/a〉
    Keywords: Astronomy/instrumentation/*methods ; Carbon/*analysis/chemistry ; Lasers ; *Solar System ; Spectrophotometry, Infrared ; Spectrum Analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Measurement of quantum tunneling between chiral isomers of the cyclic water trimer (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-25
    Description: A detailed experimental study of the water trimer is reported. A vibration-rotation-tunneling band of the perdeuterated cluster has been measured near 89.6 wave numbers by tunable far infrared laser absorption spectroscopy. The data indicate a chiral six-membered ring structure with rapid quantum tunneling occurring between the enantiomers. The observed vibration involves torsional motion of the water subunits about each hydrogen bond axis. It is speculated that larger water clusters would also exhibit transient chirality and that similar effects may be found in liquid water.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pugliano, N -- Saykally, R J -- 850RR05651A/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1937-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411509" target="_blank"〉PubMed〈/a〉
    Keywords: Isomerism ; Lasers ; Spectrophotometry, Infrared/*instrumentation ; Water/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Diode-laser absorption spectroscopy of supersonic carbon cluster beams: the nu 3 spectrum of C5 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: A new spectroscopic experiment has been developed in which rovibrational transitions of supersonically cooled carbon clusters, which were produced by laser vaporization of graphite, have been measured by direct-absorption diode-laser spectroscopy. Thirty-six sequential rovibrational lines of the nu 3 band of the C5 carbon cluster have been measured with Doppler-limited resolution. The absorption spectrum is characteristic of a linear molecule with a center of symmetry. Least-squares analysis of the spectrum indicates an effective carbon-carbon bond length of 1.283 angstroms, in good agreement with ab initio quantum chemical calculations. This work confirms the detection of C5 in IRC + 10216 reported in the accompanying paper.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heath, J R -- Cooksy, A L -- Gruebele, M H -- Schmuttenmaer, C A -- Saykally, R J -- New York, N.Y. -- Science. 1989 May 5;244:564-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11539817" target="_blank"〉PubMed〈/a〉
    Keywords: Astronomical Phenomena ; Astronomy ; Carbon/*analysis/chemistry ; *Lasers ; Quantum Theory ; Solar System ; Spectrum Analysis/*methods
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Chemistry. Pinning down the water hexamer (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saykally, Richard J -- Wales, David J -- New York, N.Y. -- Science. 2012 May 18;336(6083):814-5. doi: 10.1126/science.1222007.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA. saykally@cchem.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22605742" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    The Water Dipole Moment in Water Clusters (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: The average dipole moment of a water molecule in the condensed phase is enhanced by around 40 percent relative to that of an isolated monomer. This enhancement results from the large polarization caused by the electric field induced by surrounding monomers. A quantitative molecular description of this polarization is essential for modeling aqueous solvation phenomena. This combined theoretical and experimental study of dipole moments in small water clusters provides such a description and also gives insights into the structure of liquid water.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gregory -- Clary -- Liu -- Brown -- Saykally -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):814-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉J. K. Gregory, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK. D. C. Clary, Department of Chemistry, University College London, London WC1H OAJ, UK. K. Liu, M. G. Brown, R. J. Saykally, Department of Chemistry, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012344" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 8
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    Nanoribbon waveguides for subwavelength photonics integration (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-08-31
    Description: Although the electrical integration of chemically synthesized nanowires has been achieved with lithography, optical integration, which promises high speeds and greater device versatility, remains unexplored. We describe the properties and functions of individual crystalline oxide nanoribbons that act as subwavelength optical waveguides and assess their applicability as nanoscale photonic elements. The length, flexibility, and strength of these structures enable their manipulation on surfaces, including the optical linking of nanoribbon waveguides and other nanowire elements to form networks and device components. We demonstrate the assembly of ribbon waveguides with nanowire light sources and detectors as a first step toward building nanowire photonic circuitry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Law, Matt -- Sirbuly, Donald J -- Johnson, Justin C -- Goldberger, Josh -- Saykally, Richard J -- Yang, Peidong -- New York, N.Y. -- Science. 2004 Aug 27;305(5688):1269-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15333835" target="_blank"〉PubMed〈/a〉
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  • 9
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    Chemistry. Building solutions--one molecule at a time (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huneycutt, Alex J -- Saykally, Richard J -- New York, N.Y. -- Science. 2003 Feb 28;299(5611):1329-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley, CA 94720, USA. ajhuneyc@uclink4.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12610288" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 10
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    Energetics of hydrogen bond network rearrangements in liquid water (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-10-30
    Description: A strong temperature dependence of oxygen K-edge x-ray absorption fine structure features was observed for supercooled and normal liquid water droplets prepared from the breakup of a liquid microjet. Analysis of the data over the temperature range 251 to 288 kelvin (-22 degrees to +15 degrees C) yields a value of 1.5 +/- 0.5 kilocalories per mole for the average thermal energy required to effect an observable rearrangement between the fully coordinated ("ice-like") and distorted ("broken-donor") local hydrogen-bonding configurations responsible for the pre-edge and post-edge features, respectively. This energy equals the latent heat of melting of ice with hexagonal symmetry (ice Ih) and is consistent with the distribution of hydrogen bond strengths obtained for the "overstructured" ST2 model of water.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, Jared D -- Cappa, Christopher D -- Wilson, Kevin R -- Messer, Benjamin M -- Cohen, Ronald C -- Saykally, Richard J -- New York, N.Y. -- Science. 2004 Oct 29;306(5697):851-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15514152" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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