When things are not as they seem: quantum interference turns molecular electron transfer "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

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

Destructive quantum interference has been shown to strongly reduce charge tunneling rates across molecular bridges. The current consensus is that destructive quantum interference occurs in cross-conjugated molecules, while linearly conjugated molecules exhibit constructive interference. Our experimental results on photoinduced charge transfer in donor-bridge-acceptor systems, however, show that...

Electrostatics Modes in Mono-Layered Graphene

In this paper, we investigated the corrected plasmon dispersion relation for graphene in presence of a constant magnetic field which it includes a quantum term arising from the collective electron density wave interference effects. By using quantum hydrodynamic plasma model which incorporates the important quantum statistical pressure and electron diffraction force, the longitudinal plasmons ar...

Finding Electrostatics modes in Metal Thin Films by using of Quantum Hydrodynamic Model

In this paper, by using a quantum hydrodynamic plasma model which incorporates the important quantum statistical pressure and electron diffraction force, we present the corrected plasmon dispersion relation for graphene which includes a k quantum term arising from the collective electron density wave interference effects (which  is integer and constant and k is wave vector). The longitudinal ...

Coordinated righting behaviour in locusts.

A locust placed upside down on a flat surface uses a predictable sequence of leg movements to right itself. To analyse this behaviour, we made use of a naturally occurring state of quiescence (thanatosis) to position locusts in a standardised upside-down position from which they spontaneously right themselves. Locusts grasped around the pronotum enter a state of thanatosis during which the limb...