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In graph theory, the degree of a vertex is its number of connections. In a chemical graph, the maximum degree of an atom is its valence, and the maximum number of bonds a chemical element can make. For example, carbon's valence is 4. In a chemical graph, an atom is saturated if it reaches its valence.
Example Bjerrum plot: Change in carbonate system of seawater from ocean acidification.. A Bjerrum plot (named after Niels Bjerrum), sometimes also known as a Sillén diagram (after Lars Gunnar Sillén), or a Hägg diagram (after Gunnar Hägg) [1] is a graph of the concentrations of the different species of a polyprotic acid in a solution, as a function of pH, [2] when the solution is at ...
In terms of a graph-based computational procedure, SMILES is a string obtained by printing the symbol nodes encountered in a depth-first tree traversal of a chemical graph. The chemical graph is first trimmed to remove hydrogen atoms and cycles are broken to turn it into a spanning tree. Where cycles have been broken, numeric suffix labels are ...
In chemical graph theory and in mathematical chemistry, a molecular graph or chemical graph is a representation of the structural formula of a chemical compound in terms of graph theory. A chemical graph is a labeled graph whose vertices correspond to the atoms of the compound and edges correspond to chemical bonds.
Build and visualize molecule and periodic systems (crystal, structures, fluids...), animate trajectories, visualize molecular orbitals, density, electrostatic potential... visualize graph such IR, NMR, dielectric and optical tensors. Molden: MM XRD: Proprietary, free use academic [12] Molecular Operating Environment (MOE) HM MD MM NA QM SMI XRD ...
A fact from Chemical graph generator appeared on Wikipedia's Main Page in the Did you know column on 21 March 2021 (check views).The text of the entry was as follows: Did you know... that one of the first generators of chemical graphs (example pictured) was developed in the context of NASA's Mariner program to facilitate the automated identification of chemical compounds in the search for life ...
Chemical graph theory is the topology branch of mathematical chemistry which applies graph theory to mathematical modelling of chemical phenomena. [1] The pioneers of chemical graph theory are Alexandru Balaban, Ante Graovac, Iván Gutman, Haruo Hosoya, Milan Randić and Nenad Trinajstić [2] (also Harry Wiener and others). In 1988, it was ...
Cheers — Amakuru 10:17, 26 February 2021 (UTC) @Evrik and Amakuru: I think I have a solution. Let me explain as this is about odd. This wiki article is almost entirely a copy of the free and open PLOS article Yirik, Mehmet Aziz; Steinbeck, Christoph (5 January 2021). "Chemical graph generators". PLOS Computational Biology. 17 (1): e1008504.