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Ab-initio Study of Citrate Ion as an Oxygen-Rich Complexing Agent.

Armando G Rojas-Hernandez, Aned De Leon, Rafael A Sabory-Garcia, Rafael Ramirez-Bon, Dainet Berman-Mendoza, Santos J Castillo

Abstract


Theoretical studies on conformational analysis, geometry optimizations and frequencies for citrate at the MP2/LANL2DZ level portrait it as a promising candidate for a complexing agent for cadmium (II) ion (Cd2+) and cadmium sulfide (CdS). Natural Bond Orbital (NBO) charges, Delocalization Indices, HOMO/LUMO gaps and surfaces along with absolute electronegativity values were employed to analyze the interactions among the configurations obtained. The most stable structures involved the interaction between the LUMO of Cd2+/CdS and the most dense region of the HOMO of the citrate ion.


Keywords


HOMO/LUMO surfaces; complexing agent; CdS; citrate ion

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DOI: http://dx.doi.org/10.17344/acsi.2019.5534

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Copyright (c) 2020 Armando G Rojas-Hernandez, Aned De Leon, Rafael A Sabory-Garcia, Rafael Ramirez-Bon, Dainet Berman-Mendoza, Santos J Castillo

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