نتایج جستجو برای: direct bond

تعداد نتایج: 491695  

Journal: :Organic & biomolecular chemistry 2010
Yasushi Obora Yoshihisa Okabe Yasutaka Ishii

A facile direct synthesis of cinnamonitriles from acrylonitriles and benzenes is successfully achieved by using Pd(OAc)(2)/HPMoV/O(2) catalyst system via the direct C-H bond activation of benzenes using molecular oxygen as a terminal oxidant.

Journal: :Science 1988
M J Rosker M Dantus A H Zewail

When a chemical bond is broken in a direct dissociation reaction, the process is so rapid that it has generally been considered instantaneous and thus unmeasurable. However, the bond does persist for times on the order of 10(-13) seconds after the photon has been absorbed. Femtosecond (10(-15) second) laser techniques can be used to directly clock this process, which describes the dynamics of t...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1998

Journal: :Journal of Physical Chemistry Letters 2021

The properties of aerosols are paramount importance in atmospheric chemistry and human health. hydrogen bond network glycerol–water generated from an aqueous solution with different mixing ratios is probed directly X-ray photoelectron spectroscopy. carbon oxygen spectra reveal contributions gas condensed phase components the aerosol. It shown that water suppresses glycerol evaporation up to a c...

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