Physical Model and Functional Layout of the Proposed Supramolecular Computational Unit (Quell Architecture): Component Geometry and Arrangement

This technical note presents the first physical, hand-constructed three-dimensional model of theproposed Quell computational unit—a supramolecular, bistable, electrically responsive molecular “bit.”The model demonstrates the full spatial arrangement of the five functional molecular componentsrequired for switching and signal readout: (1) a bistable rotaxane axle with shuttling macrocycle, (2) anazobenzene unit with an OCH₃ substitution for local electronic biasing, (3) a tetrathiafulvalene (TTF)electron-donor field generator, (4) a viologen electron-acceptor read-out element, and (5) the cubicmetal–organic framework (MOF) linker cage that establishes confinement and electrical conductionpathways.The photographs included (Figures 1–8) show the real handcrafted model, built at ~12-inch cubic scale,with each component color-coded and physically labeled. The arrangement is not a schematic but adirect spatial representation of the proposed geometry at molecular scale. An electrically drivenmechanism for bistable switching is described, consistent with known rotaxane electron-donor/acceptorbehavior and the conductive environment provided by a metal–organic scaffold. This paper is intendedas a clarifying supplement to the conceptual preprint The Quell Architecture: A ConfinedSupramolecular Bi-Stable Unit (Willam D. Miller, 2025), available at:https://figshare.com/articles/preprint/_b_The_Quell_Architecture_A_Confined_Supramolecular_Bi-Stable_Unit_b_/30664586?file=59718164