The Photographic Latent Image I. Lattice Energy and Related Quantities for a Hypothetical Silver Bromide Crystal Having the Cubic ZnS Type of Structure

Abstract

The usual NaCl type of structure (B1) for silver bromide is compared with a hypothetical structure for this substance of the cubic ZnS type (B3) with regard to certain quantities which are of importance in connection with the theory of the photographic latent image. These include: lattice energy, equilibrium distance between closest atoms, density, potential at interstitial positions, potential energy changes as an ion moves from its normal position to an interstitial position, and as an ion or electron moves from one interstitial position to another. The methods of calculation are outlined and the probable accuracy of the results discussed.