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Traité Élémentaire de Chimie (Elementary Treatise of Chemistry) - Antoine Lavoisier; Traité Élémentaire de Chimie, 1789, available in English as Elementary Treatise of Chemistry; Description: This book was intended as an introduction to new theories in chemistry and as such, was one of the first Chemistry textbooks. [9]
Several non-metallic elements exist only as molecules in the environment either in compounds or as homonuclear molecules, not as free atoms: for example, hydrogen. While some people say a metallic crystal can be considered a single giant molecule held together by metallic bonding , [ 20 ] others point out that metals behave very differently ...
molecules with drug-like properties "ChEMBL". 1,961,000 cheML.io: Departments of Computer Science and Chemistry at Nazarbayev University de novo molecules generated by ML models SMILES, computed properties artificially generated "cheML.io". [3] 2,800,000 ChemDB chemical database small molecules "ChemDB". 5,000,000 ChemExper Chemexper Chemical ...
This is an index of lists of molecules (i.e. by year, number of atoms, etc.). Millions of molecules have existed in the universe since before the formation of Earth. Three of them, carbon dioxide , water and oxygen were necessary for the growth of life.
One can subdivide chemical compounds into two main groups: molecules, which includes most organic, polyatomic gases, and organometallic compounds, and nonmolecular species, which includes most purely inorganic compounds. The structures of many reagents are often misunderstood because simplified formulas are presented in reaction schemes whereas ...
Theories of chemical structure were first developed by August Kekulé, Archibald Scott Couper, and Aleksandr Butlerov, among others, from about 1858. [4] These theories were first to state that chemical compounds are not a random cluster of atoms and functional groups, but rather had a definite order defined by the valency of the atoms composing the molecule, giving the molecules a three ...
C 10 H 12 ClNO 2: chlorpropham: 101-21-3 C 10 H 12 ClN 3 O 2: tranid: 15271-41-7 C 10 H 12 F 3 N: norfenfluramine: 1886-26-6 C 10 H 12 N 2 O: biacetyl phenylhydrazone: 13732-32-6 C 10 H 12 N 2 O: cotinine: 486-56-6 C 10 H 12 N 2 O 3: allobarbital: 52-43-7 C 10 H 12 N 2 O 3 S: bentazone: 25057-89-0 C 10 H 12 N 2 O 8: orotidine: 314-50-1 C 10 H ...
In supramolecular chemistry, [1] host–guest chemistry describes complexes that are composed of two or more molecules or ions that are held together in unique structural relationships by forces other than those of full covalent bonds. Host–guest chemistry encompasses the idea of molecular recognition and interactions through non-covalent ...