IDENTIFYING FLUORESCENT HYDROCARBON RADICALS FROM A BENZENE DISCHARGE. Neil J. Reilly, Damian L. Kokkin, Scott H. Kable & Timothy W. Schmidt (Not)

Slides:

Advertisements

Similar presentations

Emission of Light from Gases

Advertisements

Electronic Spectra: Ultraviolet and Visible Spectroscopy Ultraviolet and visible light give rise to electronic excitations. Spectroscopy of organic.

Photosynthetic Pigments: The Light Receptors Pigments are substances that absorb visible light Different pigments absorb different wavelengths Wavelengths.

D.L. KOKKIN, N.J. REILLY, J.A. JOESTER, M. NAKAJIMA, K. NAUTA, S.H. KABLE and T.W. SCHMIDT Direct Observation of the c State of C 2 School of Chemistry,

Electronic Spectroscopy of 1-Methylpyrene cation and related species. D. Kokkin, C. Marshall, A. Bonnamy, And C. Joblin and A. Simon.

Felix Güthe 1, Hongbin Ding, Thomas Pino 3, Tim W. Schmidt 4, Andrei Boguslavskiy John Maier Institut für Physikalische Chemie der Universität Basel, Basel,

Spectrum from a Prism. Example of a Spectrum Kirchoff’s Laws.

Spectroscopy. Atoms and Light  Atomic electron energy levels are a source of discrete photon energies.  Change from a high to low energy state produces.

Spectroscopy Spectroscopy: interaction of light with matter Average Bond energies (kJ/mol) C-H: 413C=C: 610H-F: 565 H-H: 436C  C: 835.

Electronic Spectroscopy of long Carbon Chains HC 2n H (n= 8-13) in the Gas Phase Felix Güthe*, Hongbin Ding, Thomas Pino and John P. Maier Institut für.

Photons of Light The smallest unit of light is a photon A photon is often called a particle of light The Energy of an individual photon depends on its.

EXAM #2 RESULTS THIS WEEK’S SCHEDULE LECTURE- LAB- Announcements.

Diagnosis of a benzene discharge with a mass-selective spectroscopic technique Felix Güthe, Hongbin Ding, Thomas Pino and John P. Maier Institute of Physical.

Stimulated Raman scattering If high enough powered radiation is incident on the molecule, stimulated Anti-Stokes radiation can be generated. The occurrence.

Felix Güthe 1, Hongbin Ding, Thomas Pino 3, Tim W. Schmidt 4, Andrei Boguslavskiy John Maier Institut für Physikalische Chemie der Universität Basel, Basel,

Time out—states and transitions Spectroscopy—transitions between energy states of a molecule excited by absorption or emission of a photon h =  E = E.

VIBRONIC SPECTROSCOPY OF THE PHENYLCYANOMETHYL RADICAL 6/23/11 1 DEEPALI N. MEHTA, NATHANAEL M. KIDWELL, JOSEPH A. KORN, AND TIMOTHY S. ZWIER 66 th International.

Application of 2D fluorescence spectroscopy to Metal Containing Species Damian L. Kokkin and Timothy Steimle. Department of Chemistry and Biochemistry.

Spectrochemical Analysis. Electromagnetic Radiation Energy propagated by an electromagnetic field, having both particle and wave nature.

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

Atomic Spectra. Much of what we know about atomic structure comes from analysis of light either being emitted or absorbed by substances. Elements can.

Using molecules to capture solar energy

Lecture II Light spectra. The Birth of the Quantum Max Planck –The energy contained in radiation is related to the frequency of the radiation by the relationship.

Towards a Complete Electronic Database of PAHs and the Identification of Resolved DIBs Xiaofeng Tan Space Science Division, NASA Ames Research Center,

States and transitions

Integral field spectroscopy of the Red Rectangle: Unraveling the carrier of the RRBs in 2D. Damian Kokkin, Robert Sharp, Masakazu Nakajima, and Timothy.

Higher Electronic Excited States of Jet-Cooled Aromatic Hydrocarbon Radicals: 1-phenylpropargyl (C9H7), 1-naphthylmethyl (C11H9), 2-naphthylmethyl (C11H9)

Jet-Cooled Spectroscopy of 1- Naphthylmethyl, 2-Naphthylmethyl & Acenaphthenyl Radicals Nahid Chalyavi.

Interrogating hydrocarbon radicals

Introduction to Spectroscopy Yongsik Lee.

Adrian M. Gardner, Alistair M. Green, Victor M. Tamé-Reyes, Victoria H. K Wilton and Timothy G. Wright Electronic and Photoelectron Spectroscopy of Toluene.

Reading Art and the art of reading (Elements of the Short Story) Monet, Claude. Wisteria Oil on canvas. Paris, Musée Marmottan EQ: Why does point.

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

1 The Red Rectangle Nebula excited by excited species Nadine Wehres, Claire Romanzin, Hans Van Winckel, Harold Linnartz, Xander Tielens.

The anomalous DIBs in the spectrum of Herschel 36 II. Analysis of radiatively excited CH +, CH, and diffuse interstellar bands Takeshi Oka, Daniel E. Welty,

The anomalous DIBs in the spectrum of Herschel 36 II. Analysis of radiatively excited CH +, CH, and diffuse interstellar bands Takeshi Oka, Daniel E. Welty,

Types of Spectra.

Analysis of Anomalous DIBs in the Spectrum of Herschel 36 Takeshi Oka, Daniel E. Welty, Sean Johnson, Donald G. York, Julie Dahlstrom, and Lew Hobbs Department.

Photochemical and Discharge-driven pathways to aromatics from 1,3-butadiene: Exploring aromatic production in Titan’s atmosphere. Josh J. Newby, Jaime.

H spectra 656 nm 486 nm 434 nm 410 nm. Ne spectra 540.1green 585.2yellow 588.2yellow 603.0orange 607.4orange 616.4orange 621.7red-orange 626.6red-orange.

Triplet-Singlet Mixing in Si 3 : the 1 A A 2 Transition Ruohan Zhang and Timothy C. Steimle International Symposium on Molecular Spectroscopy 68.

Tyler P. Troy, Scott H. Kable, Timothy W. Schmidt Department of Chemistry, University of Sydney Scott A. Reid Department of Chemistry, Marquette University.

Chap 3 – Interstellar Dust. Problem We have no direct probes / samples of true interstellar dust. Everything we know comes from its interaction with light:

The optical spectrum of SrOH revisited: Zeeman effect, high- resolution spectroscopy and Franck- Condon factors TRUNG NGUYEN, DAMIAN L KOKKIN, TIMOTHY.

The 70 th International Symposium on Molecular Spectroscopy, TH07, June 23, The 70 th Meeting of International Symposium on Molecular Spectroscopy,

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

An introduction to Spectrometric Methods. Spectroscopy Definition Spectroscopy is a general term for the science that deal with the interactions of various.

SPECTRA OF JET-COOLED ALL- BENZENOID PAHS - TRIPHENYLENE (C 18 H 12 ) AND HEXA-PERI- HEXABENZOCORONENE(C 42 H 18 ) DAMIAN L. KOKKIN, TYLER P. TROY, NEIL.

Date of download: 7/9/2016 Copyright © ASME. All rights reserved. From: Solar Radiation Conversion With Mesoporous Silica Activated by Rare-Earth Ions.

& DETECTION AND CHARACTERIZATION OF THE STANNYLENE (SnH2) FREE RADICAL.

LASER SPECTROSCOPY AND DYNAMICS OF THE JET-COOLED AsH2 FREE RADICAL

Most of what is known about stars comes from spectral studies.

Mitsunori ARAKI, Hiromichi WAKO, Kei NIWAYAMA and Koichi TSUKIYAMA○

Tokyo Univ. Science Mitsunori Araki, Yuki Matsushita, Koichi Tsukiyama

Jun Jiang, Angelar Muthike, and Robert W. Field

Thomas D. Varberg, Department of Chemistry, Macalester College, St

Solar Spectrum wavelength in Å Joseph von Fraunhofer, 1814.

Sections 6.1 – 6.3 Electromagnetic Radiation and its Interaction with Atoms Bill Vining SUNY College at Oneonta.

Disruption of Metal-Metal Interactions and Extended Linear Chains by Organic Solvent Molecules Zerihun Assefa, Department of Chemistry, North Carolina.

ATOMIC SPECTRA.

Electromagnetic Spectrum

Continuous, Emission, and Absorption

Doppler Shifts of Interstellar NaD lines

Photon Physics ‘08/’09 Thijs Besseling

The fingerprints of elements

3.5 Energy levels and spectra

Continuous, Emission, and Absorption

Electromagnetic Spectrum

Tryptophan - gas phase tautomer

Fluorescence properties of MSP.

Presentation transcript:

IDENTIFYING FLUORESCENT HYDROCARBON RADICALS FROM A BENZENE DISCHARGE. Neil J. Reilly, Damian L. Kokkin, Scott H. Kable & Timothy W. Schmidt (Not)

Diffuse interstellar bands…

What is this molecule?

Benzene discharge (2d) 99989998 99979997 10101010 10111011 21212121 21202120 21222122 Rotational branch trails C3C3 C2C2

Benzene discharge ?

Emission wavelength (nm) Excitation wavelength (nm)

Benzene discharge Claude Monet. Water-Lilies Oil on canvas. National Museum of Western Art, Tokyo, Japan.

Benzene discharge C3C3 ? ? ? ? ?

C2C2 ? ? ? ? ? ? ? ?

origin DF C2C2 C2C2

Benzene discharge C2C2 ? ? ? ? ? ? ? ? ? = same molecule!

C 6 H 6 discharge Our origin band DIB

Benzene discharge C2C2

C2C2

C6H6C6H6 C6H5DC6H5D C6D6C6D6

C6H6C6H6 C6H5DC6H5D C6D6C6D6

C6H6C6H6 C6H5DC6H5D C6D6C6D6 CnH6?CnH6?

Coincidence? Both spectra generated from C 6 H 6 discharge Both coincident with broad DIBs What could be the broadening mechanism? Inefficient radiative cooling? We’ll try to get a R2C2PI spectrum later this year… I’ll tell you what it is next year