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Palmer MH, Coreno M, de Simone M, Grazioli C, Jones NC, Hoffmann SV, Aitken RA. The ground and ionized states of azulene; a combined study of the vibrational energy levels by photoionization, configuration interaction and density functional calculations. J Chem Phys 2022; 156:064305. [DOI: 10.1063/5.0073505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | | | - Cesare Grazioli
- IOM-CNR, TASC Laboratory, Consiglio Nazionale delle Ricerche Istituto di Struttura della Materia, Italy
| | - Nykola C. Jones
- Aarhus University Department of Physics and Astronomy, Denmark
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2
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Vinitha M, Nair AM, Kumar AS, Blanchet V, Kadhane UR. Isomerization and dehydrogenation of highly vibrationally excited azulene+ produced via S2 vibrational manifold. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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3
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Fundamental Limits on Spatial Resolution in Ultrafast X-ray Diffraction. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7060534] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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4
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Pemberton CC, Zhang Y, Saita K, Kirrander A, Weber PM. From the (1B) Spectroscopic State to the Photochemical Product of the Ultrafast Ring-Opening of 1,3-Cyclohexadiene: A Spectral Observation of the Complete Reaction Path. J Phys Chem A 2015; 119:8832-45. [DOI: 10.1021/acs.jpca.5b05672] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christine C. Pemberton
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Yao Zhang
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Kenichiro Saita
- EaStCHEM,
School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Adam Kirrander
- EaStCHEM,
School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Peter M. Weber
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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Piecuch P, Hansen JA, Staedter D, Faure S, Blanchet V. Communication: Existence of the doubly excited state that mediates the photoionization of azulene. J Chem Phys 2013; 138:201102. [PMID: 23742447 DOI: 10.1063/1.4808014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Piotr Piecuch
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA.
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6
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Minitti MP, Zhang Y, Rosenberg M, Brogaard RY, Deb S, Sølling TI, Weber PM. Far-UV photochemical bond cleavage of n-amyl nitrite: bypassing a repulsive surface. J Phys Chem A 2012; 116:810-9. [PMID: 22175717 DOI: 10.1021/jp209727g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have investigated the deep-UV photoinduced, homolytic bond cleavage of amyl nitrite to form NO and pentoxy radicals. One-color multiphoton ionization with ultrashort laser pulses through the S(2) state resonance gives rise to photoelectron spectra that reflect ionization from the S(1) state. Time-resolved pump-probe photoionization measurements show that upon excitation at 207 nm, the generation of NO in the v = 2 state is delayed, with a rise time of 283 (16) fs. The time-resolved mass spectrum shows the NO to be expelled with a kinetic energy of 1.0 eV, which is consistent with dissociation on the S(1) state potential energy surface. Combined, these observations show that the first step of the dissociation reaction involves an internal conversion from the S(2) to the S(1) state, which is followed by the ejection of the NO radical on the predissociative S(1) state potential energy surface.
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Affiliation(s)
- Michael P Minitti
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
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7
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Cao Z, Wei Z, Hua L, Hu C, Zhang S, Zhang B. The intersystem crossing process of p-bromofluorobenzene studied with time-resolved photoelectron imaging. J Chem Phys 2009; 130:144309. [PMID: 19368447 DOI: 10.1063/1.3097184] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Zhenzhou Cao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, People's Republic of China
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8
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Blanchet V, Raffael K, Turri G, Chatel B, Girard B, Garcia IA, Wilkinson I, Whitaker BJ. Time-dependent photoionization of azulene: Competition between ionization and relaxation in highly excited states. J Chem Phys 2008; 128:164318. [DOI: 10.1063/1.2913167] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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9
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Kuthirummal N, Rudakov FM, Evans CL, Weber PM. Spectroscopy and femtosecond dynamics of the ring opening reaction of 1,3-cyclohexadiene. J Chem Phys 2006; 125:133307. [PMID: 17029460 DOI: 10.1063/1.2345203] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The early stages of the ring opening reaction of 1,3-cyclohexadiene to form its isomer 1,3,5-hexatriene, upon excitation to the ultrashort-lived 1 1B2 state, were explored. A series of one-color two-photon ionization/photoelectron spectra reveal a prominent vibrational progression with a frequency of 1350 cm(-1), which is interpreted in a dynamical picture as resulting from the ultrafast wave packet dynamics associated with the ring opening reaction. Photoionization in two-color three-photon and one-color four-photon ionization schemes show an ionization pathway via the same ultrashort-lived 1 1B2 state, and in addition, a series of Rydberg states with quantum defects of 0.93, 0.76, and 0.15, respectively. Using those Rydberg states as probes for the reaction dynamics in a time-resolved pump-probe experiment provides a direct observation of the elusive 2 1A1 state that has been implicated as an intermediate step between the initially excited 1 1B2 state and the ground electronic state. The rise and decay times for the 2 1A1 state were found to be 55 and 84 fs, respectively.
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Affiliation(s)
- Narayanan Kuthirummal
- Department of Physics and Astronomy, College of Charleston, Charleston, South Carolina 29424, USA
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10
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Deleuze MS. Valence One-Electron and Shake-Up Ionization Bands of Polycyclic Aromatic Hydrocarbons. III. Coronene, 1.2,6.7-Dibenzopyrene, 1.12-Benzoperylene, Anthanthrene. J Phys Chem A 2004. [DOI: 10.1021/jp047224e] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael S. Deleuze
- Departement SBG, Limburgs Universitair Centrum, Universitaire Campus, B-3590 Diepenbeek, Belgium
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11
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ter Steege DHA, Buma WJ. Spectroscopy and dynamics of excited states in maleimide and N-methyl maleimide: Ionic projection and ab initio calculations. J Chem Phys 2003. [DOI: 10.1063/1.1574803] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Deleuze MS. Valence one-electron and shake-up ionization bands of polycyclic aromatic hydrocarbons. II. Azulene, phenanthrene, pyrene, chrysene, triphenylene, and perylene. J Chem Phys 2002. [DOI: 10.1063/1.1462615] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Abstract
Time-resolved photoelectron spectroscopy (TRPES) has become a powerful new tool in studying the dynamics of molecules and clusters. It has been applied to processes ranging from energy flow in electronically excited states of molecules to electron solvation dynamics in clusters. This review covers experimental and theoretical aspects of TRPES, focusing on studies of neutral and negatively charged species.
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Affiliation(s)
- D M Neumark
- Department of Chemistry, University of California, Berkeley, California 94720, USA.
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14
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Schick CP, Weber PM. Ultrafast Dynamics in the Three-Photon, Double-Resonance Ionization of Phenol via the S2 Electronic State. J Phys Chem A 2001. [DOI: 10.1021/jp003304g] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Carolyn P. Schick
- Department of Chemistry, Brown University, Providence, Rhode Island 02912
| | - Peter M. Weber
- Department of Chemistry, Brown University, Providence, Rhode Island 02912
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Schick CP, Carpenter SD, Weber PM. Femtosecond Multiphoton Ionization Photoelectron Spectroscopy of the S2 State of Phenol. J Phys Chem A 1999. [DOI: 10.1021/jp992065y] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Carolyn P. Schick
- Department of Chemistry and Department of Physics, Brown University, Providence, Rhode Island 02912
| | - Scott D. Carpenter
- Department of Chemistry and Department of Physics, Brown University, Providence, Rhode Island 02912
| | - Peter M. Weber
- Department of Chemistry and Department of Physics, Brown University, Providence, Rhode Island 02912
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Assion A, Geisler M, Helbing J, Seyfried V, Baumert T. Femtosecond pump-probe photoelectron spectroscopy: Mapping of vibrational wave-packet motion. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 54:R4605-R4608. [PMID: 9914128 DOI: 10.1103/physreva.54.r4605] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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17
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Cyr DR, Hayden CC. Femtosecond time‐resolved photoionization and photoelectron spectroscopy studies of ultrafast internal conversion in 1,3,5‐hexatriene. J Chem Phys 1996. [DOI: 10.1063/1.470802] [Citation(s) in RCA: 119] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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18
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Kim B, Schick CP, Weber PM. Time‐delayed two‐color photoelectron spectra of aniline, 2‐aminopyridine, and 3‐aminopyridine: Snapshots of the nonadiabatic curve crossings. J Chem Phys 1995. [DOI: 10.1063/1.470368] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Thantu N, Weber PM. Dependence of two-photon ionization photoelectron spectra on laser coherence bandwidth. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)85634-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Thantu N, Weber PM. Resonant two photon ionization of phenanthrene via its transientS 2 state. ACTA ACUST UNITED AC 1993. [DOI: 10.1007/bf01437885] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Dobber MR, Buma WJ, de Lange CA. Resonance enhanced multiphoton ionization photoelectron spectroscopy on nanosecond and picosecond time scales of Rydberg states of methyl iodide. J Chem Phys 1993. [DOI: 10.1063/1.465347] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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