New research of Dalian Institute found that Strong isotope effects in photodissociation of water isotopolog

On July 23 a research was published in Science Advances regarding Water isotopolog. According to reports in a recent research from the Dalian Institute of Chemical Physics of the Chinese Academy of Science found that the strong isotope effects in the photodissociation of the water Isotopologue.

A team of researchers led by Prof. YUAN Kaijun and Prof. YANG Xueming found by use of Dalian Coherent Light Source it is possible for a strong isotope to effect the water Isotopologue. And as I have mentioned above that, this research were first published in Science Advances on July 23.

“Our experimental results illustrate dramatically different quantum state population distributions of OH and OD fragments from HOD photodissociation. The branching ratios of the H+OD and D+OH channels display large wavelength-dependent isotopic fractionation,” said Prof. YUAN.

Dalian Coherent Light Source, Strong Isotope Effects in Water PhotoChemistry
Image: Dalian Coherent Light Source Revealing Strong Isotope Effects in Water PhotoChemistry
Image Credit: DICP

As we all know water is one of the most abundant species in the solar nebula, So photodissociation of water and its isotopologue by solar vacuum ultraviolet photons may be an alternative source of the D/H isotope heterogeneity, and this effect must be considered in photochemical models.

It is also possible that the photochemical processes identified in this work may vary the D/H isotopic ratios in the inner and outer regions, or in different periods of the solar nebula, which may cause the D/H isotope heterogeneity in the solar system.

What is Isotopologue ?

Isotopologues are molecules that differ only in their isotopic composition. They have the same chemical formula and bonding arrangement of atoms, but at least one atom has a different number of neutrons than the parent.

Topic: New research of Dalian Institute found that Strong isotope effects in photodissociation of water isotopolog

Source : Eureka Alert

Original Source of Research: Dalian Institute of Chemical Physics, Chinese Academy Sciences

(Note: This research was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences, Chemical Dynamics Research Center, and the National Natural Science Foundation of China. And was first published in Science Advances on July 23).

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