Allotropes of phosphorus diphosphorus molecule begins to dissociate into atomic phosphorus. P nanorod polymers were isolated from CuI-P complexes using low temperature treatment. Red/brown phosphorus was shown to be stable in air for several weeks and have significantly different properties from red phosphorus. Electron microscopy showed that red/brown phosphorus forms long, parallel nanorods with a diameter between 3.4 Å and 4.7 Å. Allotropes of phosphorus Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known. Gaseous phosphorus exists as diphosphorus and atomic phosphorus. White phosphorus, yellow phosphorus or
Red-violet color is displayed at right and is identical to the web color medium violet red. By the 1970s, because of the advent of psychedelic art, artists became used to brighter pigments, and pigments called "purple" or "bright purple" that are the pigment equivalent of electric purple became available in artists pigments and colored pencils. Reproducing electric purple in pigment requires adding some white pigment and a small amount of blue pigment to red-violet pigment. Even then, the reproduction will not be exact because it is impossible for pigment colors to be so bright as colors displayed on a computer. At