Tag: discovery

1866 – Dewar's Brass Strip Models

Mechanical arrangement adapted to illustrate structure in the non-saturated hydrocarbons by the chemistJames Dewar. The model is made of bars, clamped together so as to allow free motion. In order to make the combination look like an atom, a thin round disc of blackened brass can be placed under the central nut. At the ends of the arms are holes to connect one carbon atom with another by means of a nut. The structure at the bottom right of his figure is now called "Dewar benzene". I bring […]

Added by: Fanny Chevalier. Category: Uncertain  Tags: chemistry, discovery, molecules, science