An Atoms-in-Molecules Theory Interpretation for the Structure of Di-n-Butyltin(IV) Derivative of Glycylvaline

  • Sandeep PokhariaEmail author
  • Swatantra Kumar Yadav
  • Hirdyesh Mishra
Short Communication


The topological and energetic properties of the electron density distribution ρ\( (\vec{r}) \) for the tin–ligand interaction in n-Bu2SnL, the geometric configuration of which was optimized at B3LYP/6-31G(d,p)/LANL2DZ(Sn) level of theory, have been theoretically calculated at the bonds around the central Sn atom in terms of atoms-in-molecules (AIM) theory using AIMAll (Version 16.01.09, standard). In n-Bu2SnL, the formation of a (3, − 1) critical point in the internuclear region between tin atom and bonded/coordinated atoms provided an evidence of a bonding interatomic interaction, and calculated bond path angles indicated a distorted trigonal bipyramidal geometry. The calculated topological and energetic parameters suggested a weak closed-shell interaction in all the bonded/coordinated bonds to Sn atom. This interaction possessed covalent character in Sn–Npeptide, Sn–Cα and Sn–Cα′, whereas an electrostatic interaction was observed in Sn–Namino and Sn–Ocarboxyl bonds. The calculated atomic charges suggested negatively charged centers around the central Sn atom.


AIM DFT Di-n-butyltin(IV) Glycylvaline 



The authors are thankful to Banaras Hindu University, Varanasi, for providing necessary infrastructural and computational facilities.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© The National Academy of Sciences, India 2019

Authors and Affiliations

  • Sandeep Pokharia
    • 1
    Email author
  • Swatantra Kumar Yadav
    • 2
  • Hirdyesh Mishra
    • 2
  1. 1.Organometallics and Molecular Modeling Group, Chemistry Section, M.M.V.Banaras Hindu UniversityVaranasiIndia
  2. 2.Physics Section, M.M.V.Banaras Hindu UniversityVaranasiIndia

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