Photoinduced formation of N2 molecules in ammonium compounds.

Photoinduced formation of N2 molecules in ammonium compounds. Research Abstract Details 

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Photoinduced formation of N2 molecules in ammonium compounds. Abstract Text:

Emad F Aziz,Johan ,Johan Forsberg,Egil Andersson,Johan ,Laurent Duda,Wenhua Zhang,Jinglong Yang,Stefan Eisebitt,Christel ,Yi Luo,Joseph Nordgren,Wolfgang Eberhardt,Jan-Erik Rubensson,

Via fluorescence yield (FY) and resonant inelastic scattering spectroscopy in the soft X-ray range we find that soft X-rays induce formation of N2 molecules in solid NH4Cl and in related compounds. The nitrogen molecules form weak bonds in NH4Cl, so that a substantial fraction of the molecules remains in the sample. From measurements of the FY as a function of exposure and temperature, the rates for the photochemical processes are estimated. At elevated temperatures (363 K), several nitrogen atoms are removed from the sample per incoming photon. At lower temperatures (233 K), the rate is reduced to around 0.02 nitrogen atoms for each incoming photon. Virtually all these atoms form N2 molecules which are bound in the sample. The generality and implications of these results are briefly discussed.

Photoinduced formation of N2 molecules in ammonium compounds. Publishing Authors By Initials

EF Aziz,J ,J Forsberg,E Andersson,J ,L Duda,W Zhang,J Yang,S Eisebitt,C ,Y Luo,J Nordgren,W Eberhardt,JE Rubensson,

For similar natural sciences: physics: radiation: radiation, ionizing: x-rays research abstracts see: natural sciences: physics: radiation: radiation, ionizing: x-rays research

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Photoinduced formation of N2 molecules in ammonium compounds. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: The journal of physical chemistry. A

VOLUME: 111

Page Numbers: 9662-9

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ISSN: 1089-5639

DAY: 12

MONTH: 09

YEAR: 2007

Photoinduced formation of N2 molecules in ammonium compounds. Information

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LANGUAGE: eng

NlmUniqueID: 9890903

Photoinduced formation of N2 molecules in ammonium compounds. Keywords Mesh Terms:

KEYWORDS: X-Rays

MESH TERMS: methods

Chemical & Substance for Abstract: Photoinduced formation of N2 molecules in ammonium compounds. Information

Substance Name: Nitrogen

Registry Number: 7727-37-9

Grant and Affiliation Information for Photoinduced formation of N2 molecules in ammonium compounds.

AFFILIATION: BESSY, Albert-Einstein Str. 15, D-12489 Berlin, Germany. emad@bessy.de

Country: United States

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MEDLINETA: J Phys Chem A

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