Related Experiment Video
Updated: Apr 26, 2026

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
Published on: June 13, 2022
Stop rotating! One substitution halts the B19₁₉⁻ motor
Francisco Cervantes-Navarro1, Gerardo Martínez-Guajardo, Edison Osorio
1Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310, Mérida, Yuc., Mexico. gmerino@mda.cinvestav.mx.
Abstract:
The B19(-) anion and other boron species have been dubbed 'Wankel motors' for the almost barrierless rotation of inner and outer concentric rings relative to each other in these compounds. A single substitution in B19(-) is shown to shut down the well-established fluxionality in the anion. A carbon atom substituted in the structure to give a neutral CB18 species is shown computationally to enforce bond localization.
Related Concept Videos
Electro-mechanical Systems
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
Back EMF
Force On A Current Loop In A Magnetic Field
Motor Units
Motor units come in different sizes, with smaller units...
Motor Units
Design Example: Automobile Ignition System
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing...

