Quantum chemical characterization of zwitterionic structures: Supramolecular complexes for modifying the wettability of oil-water-limestone system

Ernesto Lopez-Chavez, Alberto Garcia-Quiroz, Gerardo Gonzalez-Garcia, Gabriela E. Orozco-Duran, Luis S. Zamudio-Rivera, José M. Martinez-Magadan, Eduardo Buenrostro-Gonzalez, Raul Hernandez-Altamirano

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

In this work, we present a quantum chemical study pertaining to some supramolecular complexes acting as wettability modifiers of oil-water-limestone system. The complexes studied are derived from zwitterionic liquids of the types N′-alkyl-bis, N-alquenil, N-cycloalkyl, N-amyl-bis-beta amino acid or salts acting as sparkling agents. We studied two molecules of zwitterionic liquids (ZL10 and ZL13), HOMO and LUMO levels, and the energy gap between them, were calculated, as well as the electron affinity (EA) and ionization potential (IP), chemical potential, chemical hardness, chemical electrophilicity index and selectivity descriptors such Fukui indices. In this work, electrochemical comparison was realized with cocamidopropyl betaine (CPB), which is a structure zwitterionic liquid type, nowadays widely applied in enhanced recovery processes.

Original languageEnglish
Pages (from-to)128-136
Number of pages9
JournalJournal of Molecular Graphics and Modelling
Volume51
DOIs
StatePublished - Jun 2014
Externally publishedYes

Keywords

  • HOMO and LUMO orbitals
  • Oil recovery
  • Reactivity
  • Selectivity
  • Zwitterionic liquid

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