Charge transfer versus molecular conductance: molecular orbital symmetry turns quantum interference rules upside down.

Charge transfer versus molecular conductance: molecular orbital symmetry turns quantum interference rules upside down† †Electronic supplementary information (ESI) available: Details on the synthesis and characterization of 1, 2mm, 2mp, 2pp, and 3, details on the experimental methodology, xyz-coordinates for all structures used in the calculations, details on the presence of destructive interference in S2mm, details on the orbital symmetry considerations. See DOI: 10.1039/c5sc01104c

When things are not as they seem: quantum interference turns molecular electron transfer "rules" upside down.

We present an interesting consequence of the differences between cross-conjugated and linearly conjugated molecules: the breakdown of conventional understanding of trends in molecular electron transfer. Interference effects are dominant in cross-conjugated molecules with unusual results: long molecules may have faster rates of electron transfer than short molecules, saturated molecules may have...

Quantum Chemical Modeling of N-(2-benzoylphenyl)oxalamate: Geometry Optimization, NMR, FMO, MEP and NBO Analysis Based on DFT Calculations

In the present work, the quantum theoretical calculations of the molecular structure of the (N-(2-benzoylphenyl) oxalamate has been investigated and are evaluated using Density Functional Theory (DFT). The geometry of the title compound was optimized by B3LYP method with 6-311+G(d) basis set. The theoretical 1H and 13C NMR chemical shift (GIAO method) values of the title compound are calculated...

Quantum Mechanical Study of the Structure, NBO and HOMO–LUMO Analysis of Molecule Oxaliplatinium

Oxaliplatinium is an anticancer drug, used in chemotherapy. To investigate the oxaliplatinium structure based on frontier orbital analysis, thermodynamic analysis and natural bond orbital (NBO) theory is the main objective of the present research. The calculated HOMO and LUMO energies show that charge transfer occurs within molecule. The NBO charges, the values of electric dipole moment (µ) of ...

The AIM, NBO thermodynamic, and quantum study of the interaction nitramide molecule with pristine, B, As and B&As doped of AlNNTs

In this work, by using density functional theory, the adsorption of Nitramide (NH2NO2) molecule on the surface of pristine, B, As and B&As doped (4,4) armchair aluminum nitride nanotube (AlNNTs) is investigated. From optimized structures the adsorption energy, deformation energy, natural bond orbital (NBO), atom in molecule (AIM), quantum parameters, reduced density gradient (RDG) and molecular...