Upper limits for the circular dichroism for the C 1s and O 1s core excitation of methyl oxirane

نویسندگان

  • G. Prümper
  • T. Lischke
  • H. Fukuzawa
  • K. Ueda
  • A. Reinköster
چکیده

The circular dichroism in the total and partial ion yields of methyl-oxirane C3H6O was measured at the C 1s and O 1s edges. The difference of the response of the chiral molecule to circularly polarized light with opposite handedness was found to be less than 0.2% for the total ion yield and less than 0.5% for the partial ion yield. Additionally we tried to find a dipole allowed molecular orientation CD effect by analyzing the fragmentation in the forward and backward direction. For this effect we found an upper limit of 1-2% for all abundant ionic fragments.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Parity Nonconservation in Relativistic Hydrogenic Ions

Hydrogenic systems are attractive objects for precision measurements of parity nonconservation (PNC) since their simple atomic structure allows for accurate theoretical calculations necessary for relating the observed effects to the standard model. Various possibilities for PNC experiments with hydrogenic ions have been discussed in the literature. Most of the early work dealt with the PNC cont...

متن کامل

Role of the Renner-Teller effect after core hole excitation in the dissociation dynamics of carbon dioxide dication.

The fragmentation of the doubly-charged carbon dioxide molecule is studied after photoexcitation to the C 1s(1)2π(u) and O 1s(1)2π(u) states using a multicoincidence ion-imaging technique. The bent component of the Renner-Teller split states populated in the 1s→ π* resonant excitation at both the carbon and oxygen 1s ionization edges opens pathways to potential surfaces in highly bent geometrie...

متن کامل

Electron angular distribution in dissociative photoionization of fixed in space D2 molecules induced by circularly polarized light

This work reports new theoretical and experimental results for the circular dichroism in electron angular distribution (CDAD) in the molecular frame of D2 ionized by circularly polarized light in the region involving the resonant excitation of Q1 and Q2 doubly excited states. At the 32.5 eV photon energy, dissociative ionization of D2 into the ground state limit D + D(1s) leads to an ion kineti...

متن کامل

Angle-resolved ion-yield measurements of CO2 in the O 1s to Rydberg excitation region

Angle-resolved energetic-ion-yield spectra were observed in the region of the O 1s to Rydberg excitation of CO2 with incident photon energy resolving power E/DE.14 000. The assignments of the electronic states were established in accordance with the angular distribution data. All the observed vibrational structures were assigned to the antisymmetric stretching vibrations caused by the vibronic ...

متن کامل

Atom-specific identification of adsorbed chiral molecules by photoemission.

The study of chiral adsorbed molecules is important for an analysis of enantioselectivity in heterogeneous catalysis. Here we show that such molecules can be identified through circular dichroism in core-level photoemission arising from the chiral carbon atoms in stereoisomers of 2,3-butanediol molecules adsorbed on Si(100), using circularly polarized x rays. The asymmetry in the carbon 1s inte...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007