Comparative cation sensing properties of a newly designed urea linked ferrocene-benzimidazole dyad: a DFT study


Sarikavak K., Kurtay G., Sevin F.

JOURNAL OF MOLECULAR MODELING, cilt.26, 2020 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 26 Konu: 3
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1007/s00894-020-4304-0
  • Dergi Adı: JOURNAL OF MOLECULAR MODELING

Özet

Herein, our primary motivation was to elucidate the electronic and physicochemical properties of a novel molecular dyad consisting of ferrocene (Fc; electron donor), urea (u; linker), and amphoteric benzimidazole (BI; electron acceptor) entities. The sensor responses were investigated for various divalent transition metal cations (Mn2+, Fe2+, Co2+, Ni2+, Cu2+, and Zn2+) and the selectivity of this cationophore molecule (Fc-u-BI) to copper ion (Cu2+) was demonstrated by using B3LYP/LANL2DZ method. According to the thermochemical calculations, we justified that Fc-u-BIMIDLINE HORIZONTAL ELLIPSISCu2+ reached to the lowest binding energy ( increment E), enthalpy ( increment H), and Gibbs free energy ( increment G) changes. In the light of the calculated global descriptors, Fc-u-BIMIDLINE HORIZONTAL ELLIPSISCu2+ was found to be the softer and thus the most reactive complex. The complex stabilities and their corresponding non-covalent interactions were also investigated by NBO and NCI analyses, respectively.