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Vargas R, Garza J, Martínez A, Ibarra IA. Computational tools to study non-covalent interactions and confinement effects in chemical systems. Chem Commun (Camb) 2024; 60:3008-3018. [PMID: 38376468 DOI: 10.1039/d3cc06347j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Confinement is a very common phenomenon in chemistry, for example, when molecules are located inside cavities. In these conditions, the electronic structure of atoms and molecules is modified. These changes could be mapped through the interaction with other molecules since non-covalent interactions between molecules are also influenced by confinement. In this work we address both topics, non-covalent interactions, and confined systems, using quantum chemistry tools with new software, emphasizing the importance of analyzing both fields simultaneously.
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Affiliation(s)
- Rubicelia Vargas
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa. C.P. 09340, Ciudad de México, Mexico.
| | - Jorge Garza
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa. C.P. 09340, Ciudad de México, Mexico.
| | - Ana Martínez
- Departamento de Materiales de Baja Dimensionalidad. Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria S.N., Coyoacán 04510, Ciudad de México, Mexico
- On sabatical at Museo Nacional de Ciencias Naturales, CSIC, Spain
| | - Ilich A Ibarra
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa. C.P. 09340, Ciudad de México, Mexico.
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS). Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria S.N., Coyoacán 04510, Ciudad de México, Mexico
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2
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Ponzi A, Manson ST, Decleva P. Photoionization of C 60: Effects of Correlation on Cross Sections and Angular Distributions of Valence Subshells. J Phys Chem A 2020; 124:108-125. [PMID: 31769686 DOI: 10.1021/acs.jpca.9b09423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Calculations of the photoionization cross section and asymmetry parameter, β, are performed at the density functional theory (DFT) and time-dependent density functional theory (TDDFT) levels for all 32 valence levels of C60. Accurate numerical results are obtained for the isolated molecule in icosahedral symmetry. A detailed analysis based on the comparison between the DFT and TDDFT results allows the identification of four types of resonances: the well-known confinement resonances of mainly geometrical origin, shape resonances native to the ionization channel, induced shape resonances, and autoionization resonances brought about by interchannel coupling, as well as their different prominence in cross section or asymmetry parameter. Generally, cross sections are enhanced at the TDDFT level, which includes contribution from the bound-state excitations from closed channels, neglected at the DFT level, and the effect persists even well above the highest ionization threshold. This effect is best seen in the total cross section, although not as dramatic as found from simpler models, probably due to the stiffer electronic structure inherent in the full molecular description. The effects of interchannel coupling on individual native resonances are rather less predictable, leading to both enhancement and decreases and often altering the details of the structure significantly. A comparison with the previous accurate total cross-sectional calculations, as well as with the available experimental data, is very good for cross sections but slightly inferior for β's. The results reported can serve as a reference to compare the effects of different environments on C60, as well as chemical substitution, notably endohedral fullerenes.
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Affiliation(s)
- A Ponzi
- Department of Physical Chemistry , Institut Ruđer Bošković , Bijenička cesta 54 , 10000 Zagreb , Croatia
| | - S T Manson
- Department of Physics and Astronomy , Georgia State University , Atlanta , Georgia 30303 , United States
| | - P Decleva
- Dipartimento di Scienze Chimiche e Farmaceutiche , Universita' di Trieste , Via Giorgieri 1 , I-34127 Trieste , Italy.,CNR IOM , I-34149 Trieste , Italy
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3
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Latzke DW, Ojeda-Aristizabal C, Denlinger JD, Reno R, Zettl A, Lanzara A. Orbital Character Effects in the Photon Energy and Polarization Dependence of Pure C 60 Photoemission. ACS NANO 2019; 13:12710-12718. [PMID: 31638764 DOI: 10.1021/acsnano.9b04536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recent direct experimental observation of multiple highly dispersive C60 valence bands has allowed for a detailed analysis of the unusual photoemission traits of these features through photon energy- and polarization-dependent measurements. Previously obscured dispersions and strong photoemission traits are now revealed by specific light polarizations. The observed intensity effects prove the locking in place of the C60 molecules at low temperatures and the existence of an orientational order imposed by the substrate chosen. Most importantly, photon energy- and polarization-dependent effects are shown to be intimately linked with the orbital character of the C60 band manifolds which allow for a more precise determination of the orbital character within the third highest occupied molecular orbital (HOMO-2). Our observations and analysis provide important considerations for the connection between molecular and crystalline C60 electronic structure, past and future band structure studies, and for increasingly popular C60 electronic device applications, especially those making use of heterostructures.
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Affiliation(s)
- Drew W Latzke
- Applied Science and Technology , University of California , Berkeley , California 94720 , United States
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Claudia Ojeda-Aristizabal
- Department of Physics and Astronomy , California State University , Long Beach , California 90840 , United States
| | - Jonathan D Denlinger
- Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Ryan Reno
- Department of Physics and Astronomy , California State University , Long Beach , California 90840 , United States
| | - Alex Zettl
- Applied Science and Technology , University of California , Berkeley , California 94720 , United States
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
- Kavli Energy NanoSciences Institute at the University of California Berkeley and the Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Alessandra Lanzara
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
- Department of Physics , University of California , Berkeley , California 94720 , United States
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4
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Chaudhuri SK, Chaudhuri RK, Mukherjee PK, Chattopadhyay S. A confinement induced spectroscopic study of noble gas atoms using equation of motion architecture: Encapsulation within fullerene's voids. J Chem Phys 2018; 147:034111. [PMID: 28734307 DOI: 10.1063/1.4994569] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A relativistic study of spectroscopic properties of the endohedral fullerenes Ng@C60q (where Ng = He, Ne and q=0,±1,±2 are the charges) associated with the C60 molecule has been done using the equation of motion coupled cluster (EOM-CC) methodology. Specific properties estimated are the transition energies, dipole oscillator strengths, and transition probabilities for the low-lying excitations 1s2(1S0) → 1snp (1P1) (n = 2, 3, 4) for He@C60q and 1s22s22p6 (1S0) → 1s22s22p5ns∕nd (1P1) (n = 3, 4) for Ne@C60q, which have been compared with those for the isolated atom to depict the confinement effect of the host molecule on the encapsulated atom. This is accomplished by introducing an effective potential to the atomic Hamiltonian induced by the fullerene moiety and its charge. The EOM-CC results have been compared with those estimated with the random phase approximation (and configuration interaction singles) to understand the effect of electron correlation under such confinement. The systematic and interesting behavior of the properties is highlighted indicating the effect of fullerene cage potential on the redistribution of electron density of the guest atom.
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Affiliation(s)
- Supriya K Chaudhuri
- Department of Physics, Ramakrishna Mission Vivekananda University, Belur Math, Howrah 711202, India
| | | | - Prasanta K Mukherjee
- Department of Physics, Ramakrishna Mission Vivekananda University, Belur Math, Howrah 711202, India
| | - Sudip Chattopadhyay
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, India
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Etindele A, Maezono R, Melingui Melono R, Motapon O. Influence of endohedral confinement of atoms on structural and dynamical properties of the C60 fullerene. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.07.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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Yagi H, Miyazaki T, Okita S, Zaima T, Okimoto H, Izumi N, Nakanishi Y, Shinohara H, Hino S. Ultraviolet photoelectron spectra of Sc3C2@C80. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.06.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ponzi A, Decleva P. Photoelectron Interference in Metallocenes: A Probe of Geometrical and Electronic Structure. J Phys Chem A 2014; 118:6692-8. [DOI: 10.1021/jp503863d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Ponzi
- Dipartimento di Scienze Chimiche
e Farmaceutiche, Università degli Studi di Trieste, via
L. Giorgieri 1, I-34127 Trieste, Italy
| | - P. Decleva
- Dipartimento di Scienze Chimiche
e Farmaceutiche, Università degli Studi di Trieste, via
L. Giorgieri 1, I-34127 Trieste, Italy
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Connerade JP, Kengkan P, Semaoune R. Confined Atoms in Clusters Bubbles Dots and Fullerenes. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200100043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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9
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Gasaneo G, Ancarani L, Mitnik D, Randazzo J, Frapiccini A, Colavecchia F. Three-Body Coulomb Problems with Generalized Sturmian Functions. ADVANCES IN QUANTUM CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-411544-6.00007-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Kamor A, Mauger F, Chandre C, Uzer T. Annular billiard dynamics in a circularly polarized strong laser field. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 85:016204. [PMID: 22400640 DOI: 10.1103/physreve.85.016204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Indexed: 05/31/2023]
Abstract
We analyze the dynamics of a valence electron of the buckminsterfullerene molecule (C60) subjected to a circularly polarized laser field by modeling it with the motion of a classical particle in an annular billiard. We show that the phase space of the billiard model gives rise to three distinct trajectories: "whispering gallery orbits," which hit only the outer billiard wall; "daisy orbits," which hit both billiard walls (while rotating solely clockwise or counterclockwise for all time); and orbits that only visit the downfield part of the billiard, as measured relative to the laser term. These trajectories, in general, maintain their distinct features, even as the intensity is increased from 10(10) to 10(14) Wcm-2. We attribute this robust separation of phase space to the existence of twistless tori.
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Affiliation(s)
- A Kamor
- School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
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11
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Plésiat E, Decleva P, Martín F. Vibrational branching ratios in the photoelectron spectra of N2 and CO: interference and diffraction effects. Phys Chem Chem Phys 2012; 14:10853-71. [DOI: 10.1039/c2cp40693d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Toffoli D, Stener M, Fronzoni G, Decleva P. Computational characterization of the HOMO-2 photoemission intensity oscillations in C60. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Jänkälä K, Tchaplyguine M, Mikkelä MH, Björneholm O, Huttula M. Photon energy dependent valence band response of metallic nanoparticles. PHYSICAL REVIEW LETTERS 2011; 107:183401. [PMID: 22107629 DOI: 10.1103/physrevlett.107.183401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Indexed: 05/31/2023]
Abstract
We show that the valence band response to photon impact in metallic nanoparticles is highly energy dependent. This is seen as drastic variations of cross sections in valence photoionization of free and initially charge-neutral nanosized metal clusters. The effect is demonstrated in a combined experimental and theoretical study of Rb clusters. The experimental findings are interpreted theoretically using a jellium model and superatom description. The variations are attributed to the changing overlap with the photon energy between the wave functions of diffuse delocalized valence electrons and continuum electrons producing a series of minima in the cross section.
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Affiliation(s)
- K Jänkälä
- Department of Physics, University of Oulu, PO Box 3000, 90014 Oulu, Finland.
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15
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Kilcoyne ALD, Aguilar A, Müller A, Schippers S, Cisneros C, Alna'washi G, Aryal NB, Baral KK, Esteves DA, Thomas CM, Phaneuf RA. Confinement resonances in photoionization of Xe@C₆₀+. PHYSICAL REVIEW LETTERS 2010; 105:213001. [PMID: 21231297 DOI: 10.1103/physrevlett.105.213001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Indexed: 05/30/2023]
Abstract
Experimental evidence is presented for confinement resonances associated with photoabsorption by a Xe atom in a C60 cage. The giant 4d resonance in photoionization of Xe is predicted to be redistributed into four components due to multipath interference of photoelectron waves reflected by the cage. The measurements were made in the photon energy range 60-150 eV by merging a beam of synchrotron radiation with a mass/charge selected Xe@C₆₀+ ion beam. The phenomenon was observed in the Xe@C(58)(3+) product ion channel. [corrected]
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Affiliation(s)
- A L D Kilcoyne
- Advanced Light Source, LBNL, MS 7-100, Berkeley, California 94720-8225, USA
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16
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Li HN, Yang H, Wang XX, Ni JF, Wang P, Meng L, Wang XB, Kurash I, Qian HJ, Wang JO, Liu ZY. Electronic structure of C(84) film studied by photoemission measurement and first-principles calculation. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2009; 21:265502. [PMID: 21828473 DOI: 10.1088/0953-8984/21/26/265502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have measured the photoemission spectra of a C(84) film (isomer mixture) with synchrotron radiation. The valence band exhibits abundant spectral features from the Fermi level to ∼18 eV binding energy. The relative intensity between the lowest binding energy feature (labeled as A) and the next lowest binding energy feature (labeled as B) oscillates distinctly within the experimental photon energy region from 21.0 to 63.0 eV. The energy levels and density of states (DOS) are calculated for the D(2d)(23)- C(84) and four D(2) symmetric (D(2)(1), D(2)(5), D(2)(21) and D(2)(22)) C(84) isomers to help us to understand the electronic structure. The experimental features and the theoretical DOS peaks have one-to-one correspondence. The number of electrons occupying the states of feature A is 12 or 13.3, depending on the different kinds of isomer mixtures. The electron occupation of feature B is 18.67 e. With the spherical symmetric approximation, features A and B can be characterized with angular momenta of 6 and 5, respectively. The angular momentum difference is the reason for the photoelectron intensity oscillations.
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Affiliation(s)
- Hong-Nian Li
- Department of Physics, Zhejiang University, Hangzhou 310027, People's Republic of China
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17
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Dolmatov V. Photoionization of Atoms Encaged in Spherical Fullerenes. ADVANCES IN QUANTUM CHEMISTRY 2009. [DOI: 10.1016/s0065-3276(09)00706-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Mitsuke K, Katayanagi H, Kafle BP, Huang C, Yagi H, Prodhan MSI, Kubozono Y. Relative partial cross sections for single, double, and triple photoionization of C60 and C70. J Phys Chem A 2007; 111:8336-43. [PMID: 17683125 DOI: 10.1021/jp0726034] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Partial cross sections for the photoion formation from C(60) and C(70) were determined from the yields of singly, doubly, and triply charged ions which were measured by mass spectrometry combined with tunable synchrotron radiation at hnu = 25-120 eV. The dependence of the detection efficiencies on the mass-to-charge ratio was evaluated by using the formula proposed by Twerenbold et al. Corrections of the detection efficiency were found to be critical for obtaining accurate partial cross sections for photoionization of fullerenes. Revisions were made of the partial cross-section curves for single and double photoionization of C(60) and C(70). The curve for triple photoionization of C(70) was newly proposed. The ratios between the cross sections for double and single photoionization increase with hnu and reach saturated values of 0.78 at 85 eV for C(60) and approximately 1.3 at 100 eV for C(70). In contrast, the ratios at 120 eV between the cross sections for triple and single photoionization of C(60) and C(70) amount to 0.14 and approximately 0.38, respectively. The formation mechanism of multiply charged fullerene ions was discussed in terms of valence-electron excitation to antibonding unoccupied orbitals and/or spherical standing waves inside the cavity of a fullerene. This excitation could be followed by Spectator Auger processes and transmission of the excess electronic energy among numerous vibrational degrees of freedom.
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Affiliation(s)
- Koichiro Mitsuke
- The Institute for Molecular Science, and Graduate University for Advanced Studies, Myodaiji, Okazaki 444-8585, Japan
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Iwasaki K, Umishita K, Hino S, Kikuchi K, Achiba Y, Shinohara H. Ultraviolet Photoelectron Spectra of Mono Metal Atom Encapsulated Fullerenes. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587250008025540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Kentaro Iwasaki
- a Fac. of Eng. and Grad. School of Sci. & Tech. , Chiba University , Chiba , 263-8522 , Japan
| | - Kazunori Umishita
- a Fac. of Eng. and Grad. School of Sci. & Tech. , Chiba University , Chiba , 263-8522 , Japan
| | - Shojun Hino
- a Fac. of Eng. and Grad. School of Sci. & Tech. , Chiba University , Chiba , 263-8522 , Japan
| | - Koichi Kikuchi
- b Dept. of Chemistry , Tokyo Metropolitan University , Hachioji , 192-0397 , Japan
| | - Yohji Achiba
- c Dept. of Chemistry , Nagoya University , Nagoya , 464-8602 , Japan
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21
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Segal D, Seideman T, Kurizki G, Shapiro M. Enhancement of nuclear tunneling through Coulomb-barriers using molecular cages. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2005.12.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Juranić PN, Lukić D, Barger K, Wehlitz R. Experimental evidence for modulations in the relative double-photoionization cross section of C60 from threshold up to 280 eV. PHYSICAL REVIEW LETTERS 2006; 96:023001. [PMID: 16486566 DOI: 10.1103/physrevlett.96.023001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2005] [Indexed: 05/06/2023]
Abstract
The relative double-photoionization cross section of neutral C60 clusters was investigated using monochromatized synchrotron radiation between 18 and 283 eV. Our measurement of the double-to-single photoionization ratio reveals two modulating components that are superimposed on a smooth ratio curve from threshold (19.0 eV) up to 280 eV, when inner-shell excitations become possible. The maxima in the modulation can be related to geometrical dimensions of the C60 cluster.
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Affiliation(s)
- P N Juranić
- Synchrotron Radiation Center, University of Wisconsin, Stoughton, Wisconsin 53589, USA
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23
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Decleva P, Fronzoni G, Stener M, de Simone M, Coreno M, Green JC, Hazari N, Plekan O. Strong oscillations in molecular valence photoemission intensities. PHYSICAL REVIEW LETTERS 2005; 95:263401. [PMID: 16497086 DOI: 10.1103/physrevlett.95.263401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2005] [Indexed: 05/06/2023]
Abstract
Photoemission from the two outermost ionizations [highest occupied molecular orbitals (HOMO and HOMO-1)] of Mg(eta(5)-C(5)H(5))(2) has been studied with synchrotron radiation in the gas phase. Strong oscillations in the HOMO-1/HOMO ratio, qualitatively similar to those well-known for fullerenes, are found. Excellent agreement with the experimental ratio is provided by accurate cross section calculations both at the density-functional theory and time-dependent density-functional theory level, indicating that a many electron response has a minor role for this effect. A comparison with the calculated values for other metal sandwich compounds indicate that the presence of oscillations is a widespread phenomenon, and a potential source of interesting information on the structural and electronic properties of the target molecule.
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Affiliation(s)
- Piero Decleva
- Dipartimento di Scienze Chimiche, Università di Trieste, Italy
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Abstract
A model delta-function potential is considered for simulating the interaction of the attached electron in C(60) (-) with the fullerene environment. The analytical expressions for the energy eigenstates, and the Green's function, are used to deduce the one-, two-, and three-photon photodetachment probabilities for C(60) (-). Particularly interesting is the observation that the three-photon photodetachment is greatly enhanced by the bound states with energies close to the energies for resonant absorption of one and two photons, and a resonance in the l=3 state.
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Affiliation(s)
- S H Patil
- Department of Physics, Indian Institute of Technology, Bombay 400 076, India
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25
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Calculated Electronic Behavior and Spectrum of Mg+@C60 Using a Simple Jellium-shell Model. Int J Mol Sci 2004. [DOI: 10.3390/i5110333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Kou J, Mori T, Ono M, Haruyama Y, Kubozono Y, Mitsuke K. Molecular- and atomic-like photoionization of C60 in the extreme ultraviolet. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00613-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rüdel A, Hentges R, Becker U, Chakraborty HS, Madjet ME, Rost JM. Imaging delocalized electron clouds: photoionization of C(60) in Fourier reciprocal space. PHYSICAL REVIEW LETTERS 2002; 89:125503. [PMID: 12225096 DOI: 10.1103/physrevlett.89.125503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2002] [Indexed: 05/23/2023]
Abstract
The dynamics of the photoionization of the two outermost orbitals of C(60) has been studied in the oscillatory regime from threshold to the carbon K edge. We show that geometrical properties of the fullerene electronic hull, such as its diameter and thickness, are contained in the partial photoionization cross sections by examining ratios of partial cross sections as a function of the photon wave number in the Fourier conjugated space. Evaluated in this unconventional manner photoemission data reveal directly the desired spatial information.
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Affiliation(s)
- Andy Rüdel
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
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Canton SE, Yencha AJ, Kukk E, Bozek JD, Lopes MCA, Snell G, Berrah N. Experimental evidence of a dynamic Jahn-Teller effect in C60(+). PHYSICAL REVIEW LETTERS 2002; 89:045502. [PMID: 12144488 DOI: 10.1103/physrevlett.89.045502] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2002] [Indexed: 05/23/2023]
Abstract
Detailed analysis of the highest occupied molecular orbital band shape in the photoelectron spectrum of gaseous C60 reveals a dynamic Jahn-Teller effect in the ground state of C60(+). The direct observation of three tunneling states asserts a D(3d) geometry for the isolated cation, originating from a strong vibronic coupling. These results show that the ionic motion plays an important role in the electron-phonon interaction.
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Affiliation(s)
- S E Canton
- Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA.
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