Towards the molecular workshop: entropy-driven designer molecules, entropy activation, and nanomechanical devices

TL;DR

This paper explores the concept of entropy-driven designer molecules, utilizing topological structures like catenanes and rotaxanes to create nanomechanical devices controlled by entropic forces rather than energy, enabling new functionalities.

Contribution

It introduces the foundational concepts for creating functional molecules driven by entropy, leveraging mechanically interlocked topological molecules for nanomechanical applications.

Findings

Entropic forces can be harnessed to control molecular behavior.

Topological molecules like catenanes enable mobile elements driven by entropy.

Potential for externally controllable nanomechanical devices.

Abstract

We introduce some basic concepts for designer molecules with functional units which are driven by entropic rather than energetic forces. This idea profits from the mechanically interlocked nature of topological molecules such as catenanes and rotaxanes, which allows for mobile elements whose accessible configuration space gives rise to entropic intramolecular forces. Such entropy-driven designer molecules open the possibility for externally controllable functional molecules and nanomechanical devices.