Time-Resolved FTIR Emission Spectroscopy of the (v 1 )-CH Stretch of the Ketenyl (HCCO) Radical Michael J. Wilhelm, William McNavage, and Raymond Groller.

Slides:

Advertisements

Similar presentations

OBSERVATION OF THE A-X ELECTRONIC TRANSITION OF C 6 -C 10 PEROXY RADICALS Neal D. Kline and Terry A. Miller Laser Spectroscopy Facility The Ohio State.

Advertisements

Nonequilibrium Thermodynamics Laboratories The Ohio State University OH Laser-Induced Fluorescence Measurements in Nanosecond Pulse Discharge Plasmas Inchul.

1 DETERMINATION OF DIFFERENTIAL CROSS SECTIONS OF THE STATE-TO-STATE INELASTIC COLLISIONS IN BULBS. A THREE-DIMENSIONAL SLICED FLUORESCENCE IMAGING STUDY.

23 June Performance of a Continuous Supersonic Expansion Discharge Source Evaluated by Laser-Induced Fluorescence Spectroscopy.

Lan Cheng and John Stanton Department of Chemistry,

Lecture 3 INFRARED SPECTROMETRY

Infrared Spectroscopy of Doubly-Charged Metal-Water Complexes

Kuo-Hsiang Hsu and Yuan-Pern Lee Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Taiwan Meng Huang.

Spectroscopic Analysis Part 4 – Molecular Energy Levels and IR Spectroscopy Chulalongkorn University, Bangkok, Thailand January 2012 Dr Ron Beckett Water.

Infrared Spectroscopy

1 University of Petra Faculty of Science & Arts Department of Chemistry Seminar I.R Spectroscopy By Firas Al-ouzeh Supervisor : Nuha I. Swidan Summer 2007.

Terrance J. Codd*, John Stanton†, and Terry A. Miller* * The Laser Spectroscopy Facility, Department of Chemistry and Biochemistry The Ohio State University,

Rovibronic Analysis of the State of the NO 3 Radical Henry Tran, Terrance J. Codd, Dmitry Melnik, Mourad Roudjane, and Terry A. Miller Laser Spectroscopy.

Spectroscopic Line Shapes Of Broad Band Sum Frequency Generation Himali Jayathilake Igor Stiopkin, Champika Weeraman, Achani Yatawara and Alexander Benderskii.

Laboratory of Molecular Spectroscopy & Nano Materials, Pusan National University, Republic of Korea Spectroscopic Identification of New Aromatic Molecular.

Oxygen Atom Recombination in the Presence of Singlet Molecular Oxygen Michael Heaven Department of Chemistry Emory University, USA Valeriy Azyazov P.N.

In-situ Photolysis of Methyl Iodide in Solid Para-hydrogen and Solid Ortho-deuterium Yuki Miyamoto 1, Mizuho Fushitani 2, Hiromichi Hoshina 3, and Takamasa.

Brookhaven Science Associates U.S. Department of Energy Hot band transitions in CH 2 Kaori Kobayashi *, Trevor Sears, Greg Hall Department of Chemistry.

Zhong Wang, Trevor Sears Department of Chemistry, Brookhaven National Laboratory; Department of Chemistry, Stony Brook University Ju Xin Department of.

States and transitions

Time Resolved Infrared Emission from Vibrational Excited Acetylene Following Super Energy Transfer Collisions with Hot Hydrogen Jonathan M. Smith Jianqiang.

Application of Time-Resolved Fourier-Transform Infrared Spectroscopy to Photodissociation Dynamics Application of Time-Resolved Fourier-Transform Infrared.

Manifestation of Nonadiabatic Effects in the IR Spectrum of para-Benzoquinone Radical Cation Krzysztof Piech, Thomas Bally Department of Chemistry, University.

441 Chem Introduction to Spectroscopy CH-1 1. Introduction to Spectroscopy Set of methods where interaction of electromagnetic radiation with chemical.

Electronic Spectroscopy of Palladium Dimer (Pd 2 ) 68th OSU International Symposium on Molecular Spectroscopy Yue Qian, Y. W. Ng and A. S-C. Cheung Department.

Electronic Transitions of Palladium Monoboride and Platinum Monoboride Y.W. Ng, H.F. Pang, Y. S. Wong, Yue Qian, and A. S-C. Cheung Department of Chemistry.

SPECTROSCOPY OF AND PHOTOINDUCED ELECTRON TRANSFER IN THE COMPLEXES OF C 2 H 4 WITH I AND I 2 Lisa George, Aimable Kalume, and Scott A. Reid Department.

MOTIVATIONS : Atmospheric Chemistry Troposphere Chemistry – Ozone Production RO 2 + NO → RO + NO 2 NO 2 → NO + O( 3 P) O( 3 P) + O 2 + M → O 3 + M.

Cavity Ringdown Spectroscopy and Kinetics of n-Butoxy Isomerization: Detection of the A-X Band of HOC 4 H 8 OO Matthew K. Sprague 1, Mitchio Okumura 1,

SIMULATION OF THE SPIN-VIBRONIC STRUCTURE IN THE GROUND ELECTRONIC STATE AND EMISSION SPECTRA INTENSITIES FOR CH 3 O RADICAL VADIM L. STAKHURSKY Radiation.

Laboratory of Molecular Spectroscopy, Pusan National University, Pusan, Republic of Korea Spectroscopic identification of isomeric trimethylbenzyl radicals.

Electronic transitions of Yttrium Monoxide Allan S.-C. Cheung, Y. W. Ng, Na Wang and A. Clark Department of Chemistry University of Hong Kong OSU International.

The states of the C 3 -Ar and C 3 -Kr van der Waals Complexes: Fluorescence Polarization and Saturation Jun-Mei Chao, Kan-Sen Chen, Shin-Shin Cheng, Anthony.

Theoretical Study on Vibronic Interactions and Photophysics of Low-lying Excited Electronic States of Polycyclic Aromatic Hydrocarbons S. Nagaprasad Reddy.

Copyright © Professor Sang Kuk Lee, Department of Chemistry, Pusan National University. All rights reserved. 1 The 67 th International Symposium on Molecular.

RF16: Photogeneration of, and Efficient Collisional Energy Transfer from, Vibrationally Excited Hydrogen Isocyanide (HNC) Michael J. Wilhelm 1,#, Jonathan.

Feb High-resolution Fourier transform emission spectroscopic study of the molecular ions Yoshihiro Nakashima.

The A ← X ABSORPTION SPECTRUM OF 2-NITROOXYBUTYL PEROXY RADICAL

The Infrared Spectrum of CH 5 + Revisited Kyle N. Crabtree, James N. Hodges, and Benjamin J. McCall.

Study of the CH 2 I + O 2 Reaction with a Step-scan Fourier-transform Infrared Absorption Spectrometer: Spectra of the Criegee Intermediate CH 2 OO and.

1 International Symposium on Molecular Spectroscopy 64 th Meeting - June 22-26, 2009, Ohio State University, Columbus, OH Presented by Chirantha P. Rodrigo,

What did DeBoer do at the US Space Force last summer? Gary DeBoer Associate Professor of Chemistry LeTourneau University Longview, TX Oct. 20, 2005.

LASER-INDUCED FLUORESCENCE (LIF) SPECTROSCOPY OF CYCLOHEXOXY

Rotational and Vibrational Energy Transfer from the First Overtone Stretch of Acetylene Keith Freel Jiande Han Michael C. Heaven.

Slow Photoelectron Velocity-map Imaging Spectroscopy

DISPERSED FLUORESCENCE (DF) SPECTROSCOPY OF JET-COOLED METHYLCYCLOHEXOXY (MCHO) RADICALS Jahangir Alam, Md Asmaul Reza, Amy Mason, Neil Reilly and Jinjun.

Structure in the Visible Absorption Bands of Jet-Cooled Phenyl Peroxy Radicals Michael N. Sullivan *, Keith Freel, J. Park, M.C. Lin, and Michael C. Heaven.

Photoelectron Imaging of Vibrational Autodetachment from Nitromethane Anions Chris L. Adams, Holger Schneider, J. Mathias Weber JILA, University of Colorado,

Near-Infrared Photochemistry of Atmospheric Nitrites Paul Wennberg, Coleen Roehl, Geoff Blake, and Sergey Nizkorodov California Institute of Technology.

Reversibility of intersystem crossing in the ã 1 A 1 (000) and ã 1 A 1 (010) states of methylene, CH 2 ANH T. LE, TREVOR SEARS a, GREGORY HALL Department.

60th International Symposium on Molecular Spectroscopy

Two-color Resonant Four-wave Mixing Spectroscopy of Highly Predissociated Levels in the Ã 2 A 1 State of CH 3 S Ching-Ping Liu, a Scott A. Reid, b and.

INFRARED AND ULTRAVIOLET SPECTROSCOPY OF JET-COOLED 2-BENZYLPHENOL: I STRUCTURE AND LARGE-AMPLITUDE TORSIONAL MOTION CHIRANTHA P. RODRIGO, CHRISTIAN W.

VIBRONIC ANALYSIS FOR TRANSITION OF ISOPROPOXY Rabi Chhantyal-Pun, Mourad Roudjane, Dmitry G. Melnik and Terry A. Miller TD03.

Evidence for Perturbations in Acetylene S 1 Levels from Stimulated Emission Pumping (SEP) Spectra A Coy Wink from the cis-Well? Barratt Park, Joshua H.

Dissociation Dynamics of Hydrogen-dihalogen Complexes Richard A. Loomis Washington University in St. Louis Department of Chemistry Abstract: WF12 – June.

2 3 With UV irradiation: Cl 2 + h  2 Cl* Cl* + H 2 (v = 0)  HCl + H Cl* + matrix  Cl Cl + H 2 (v = 0)  no reaction With IR irradiation: H 2 (v =

High-resolution Fourier transform emission spectroscopy of the A 2  + – X 2  transition of the BrCN + ion. June 20, 2005, Ohio state Univ. Yoshihiro.

Conformational effects on resolved emission spectra of floppy aromatic molecules Sujit S. Panja Department of chemistry Indian Institute of Technology.

Md Asmaul Reza, Jahangir Alam, Amy Mason, Neil Reilly and Jinjun Liu Department of Chemistry, University of Louisville JET-COOLED DISPERSED FLUORESCENCE.

Introduction to Infrared Spectroscopy

Kinetics measurements of HO 2 and RO 2 self and cross reactions using infrared kinetic spectroscopy (IRKS) A.C. Noell, L. S. Alconcel, D.J. Robichaud,

EXPERIMENTAL LINE LISTS OF HOT METHANE Image credit: Mark Garlick MONDAY 22 nd JUNE 2015 ROBERT J. HARGREAVES MICHAEL DULICK PETER F.

ANH T. LE, GREGORY HALL, TREVOR SEARSa Division of Chemistry

Infrared spectroscopic investigation

SIMULATIONS OF VIBRONIC LEVELS IN DEGENERATE ELECTRONIC STATES IN THE PRESENCE OF JAHN-TELLER COUPLING – EXPANSION OF PES THROUGH THIRD ORDER VADIM L.

70th International Symposium on Molecular Spectroscopy

FLUORESCENCE-DEPLETION INFRARED SPECTROSCOPY

Learning Outcomes By the end of this topic students should be able to:

Learning Outcomes By the end of this topic students should be able to:

Presentation transcript:

Time-Resolved FTIR Emission Spectroscopy of the (v 1 )-CH Stretch of the Ketenyl (HCCO) Radical Michael J. Wilhelm, William McNavage, and Raymond Groller Department of Chemistry, University of Pennsylvania Hai-Lung Dai Department of Chemistry, Temple University 62 nd International Symposium on Molecular Spectroscopy [RF03] : Thursday, June 21, 2007

All Roads Lead to Ketenyl… HCCH + … NO 2 + UV  NO + O( 3 P) HCCH + O( 3 P)  HCCO + H HCCO + O 2  H + CO + CO 2 combustion atmospheric

Past Spectroscopic Studies of Ketenyl: K.G. Unfried, G.P. Glass, and R.F. Curl, Chem. Phys. Lett., 117, 33 (1991) Vibrational Spectroscopy Infrared Flask Kinetic Spectroscopy (v 2 ) Asymmetric CCO Stretch: (v 2 ) Asymmetric CCO Stretch: Pure Rotational Spectrum of HCCO with Sub-millimeter Wave Spectroscopy: Large (Ka)-dependency  Renner-Teller Interaction Near-Prolate Symmetric Top Y. Endo and E. Hirota, J. Chem. Phys., 8, 4319 (1991) Electronic Spectroscopy of the B  X System of HCCO: LIF - Origin of the (B)-State PFY – (v 6 ) CCH Bend Small fluorescence quantum yield.. LIF not advisable! Osborn, Mordaunt, Choi, Bise, Neumark and Rohlfing, J. Chem. Phys., 106, (1997) Brock, Mischler, and Rohlfing, J. Chem. Phys., 110, 6773 (1999) M.J. Krish, J.L. Miller, and L.J. Butler, J. Chem. Phys., 119, 176 (2003) Generation of Ketenyl..

Collider Gas Input [2-10 Torr] Sample Input [10 – 100 mTorr] Oscilloscope Bruker Transient Recorder Board Pad82a MM IFS 66s Time-Resolved Fourier Transform Infrared Emission Spectroscopy (TR FTIRES): ArF Excimer : LPX 200 {l = 193 nm, 20 Hz, ≤ 100 mJ/pulse} Pre-Amp + Amplifier Win2K PC / OPUS f1f2 Photodiode trigger Gas Cell To Glass Manifold / Mechanical Pump (i.e.  Continuous Flow..) Capacitance Manometer [0-10 Torr] Step-Scan RA + h nm  R ‡ + A ‡ R ‡ (v’=k) + M  R ‡ (v’=k-1) + M * : R ‡ (v’=1) + M  R (v’=0) + M *

HCC-O-CH 2 CH 3 + (193 nm)  HCCO + CH 2 CH 3 Time-Resolved FTIR Emission Spectra: HCCO(v 2 )  CO HCC[X  A] CH 2 CH 3  (?) {HCC(v 1 )  HCCO(v 1 )} -- Early -- Late

2D Cross-Spectral Correlation Analysis: (A) (B) Frequency / cm -1 Intensity / a.u. Time /  s (A) Time /  s Intensity / a.u. Frequency (B) Time /  s Intensity / a.u. Frequency synchronousasynchronous

2D Cross-Spectral Synchronous Correlation Analysis: 16.2  s Time-Resolved Data Set(1) Time-Resolved Data Set(2)

2D Cross-Spectral Synchronous Correlation Analysis:  s (0.9  s)  s (6.0  s)  s (11.1  s)  s (16.2  s)

Extracted (time-resolved) Synchronous Diagonals: 16.2  s 0.9  s 16.2  s HCCO(v 1 ) HCCH(v 3 ) HCC(v 1 ) PTS + Vibronic MS-TOF

2D Cross-Spectral Asynchronous Correlation Analysis: Time-Resolved Data Set(1) Time-Resolved Data Set(2)

2D Cross-Spectral Asynchronous Correlation Analysis: CO(0  1) HCCO(v 2 )

Rotational Contour Simulation: HCCH (v 3 ) HCC (v 1 ) HCCO[v 1 ] ~ 3232 cm -1 Near-Prolate Symmetric Top..

IR Spectral Assignments: [X1] – Gaussian03 Calculation [X2] – Peter Szalay (Private Communication)

Acknowledgments: U.S. Department of Energy, Basic Energy Sciences NASA Earth System Science Fellowship (WM) Financial Support: People: Hai-Lung Dai (Advisor) Matt Nikow Min Zhang Grazia Gonella Jia Zeng Jianqiang Ma Jun Han Michelle Wang Shi-Hui Jen William McNavage Ray Groller