![]() ![]() In addition to the twelve elements listed above, RasMol colors many of the other elements in a distinctive way. Thus, they only approximate how RasMol will render the RGB colors on your computer.Įxcept for green, white, blue, and orange, these color names are not the ones specified as " Predefined Colors" in RasMol thus, they can only be specified on the command line as RGB triplets. Note that the rendering of the hexadecimal-equivalent colors shown here will depend on your browser, monitor type and settings, etc. The black background in the Element and Color Name columns corresponds to the "standard" background color in RasMol. Column P consists of the colors in the PubChem database managed by the United States National Institute of Health.Īll colors are approximate and may depend on the display hardware and viewing conditions.Go to another Color Table: Predefined Amino/Shapely CPKĬPK Colors The RasMol cpk color scheme colors 'atom' objects by the atom (element) type.Column R is the scheme used by Rasmol when two colors are shown, the second one is valid for versions 2.7.3 and later.Column J is the color scheme used by the molecular visualizer Jmol.Column C is the original assignment by Corey and Pauling.The following table shows colors assigned to each element by some popular software products. carbon black, hydrogen white, chlorine green, 'fiery' oxygen red, nitrogen blue)." Modern variants Example of Jmol coloring (At the time, croquet was the most popular sport in England, so the balls were plentiful.) "On the Combining Power of Atoms", Chemical News, 12 (1865, 176–9, 189, states that "Hofmann, at a lecture given at the Royal Institution in April 1865 made use of croquet balls of different colours to represent various kinds of atoms (e.g. In 1865, August Wilhelm von Hofmann, in a talk at the Royal Institution in London, was using models made from croquet balls to illustrate valence, so he used the coloured balls available to him. It is likely that the CPK colours were inspired by models in the nineteenth century. Perhaps red for oxygen is inspired by the fact that oxygen is normally required for combustion or that the oxygen-bearing chemical in blood, hemoglobin, is bright red, and the blue for nitrogen by the fact that nitrogen is the main component of Earth's atmosphere, which appears to human eyes as being colored sky blue. ![]() For some colors, such as those of oxygen and nitrogen, the inspiration is less clear. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc. Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. ( October 2022) ( Learn how and when to remove this template message)Ī box of ball-and-stick model pieces colored to represent several of the common elements.Īlkaline earth metals ( Be, Mg, Ca, Sr, Ba, Ra) Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. This section possibly contains original research.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |