Semi-rigid molecule — A semi rigid molecule is a molecule which has a potential energy surface with a well defined minimum corresponding to a stable structure of the molecule. The only (quantum mechanical) motions that a semi rigid molecule makes are (small) internal… … Wikipedia
Molécule semi-rigide — Une molécule semi rigide est une molécule dont la surface d énergie potentielle avec un minimum bien défini correspondant à une structure stable de la molécule. Les seuls mouvements (quantiques) qu une molécule semi rigide effectue sont des… … Wikipédia en Français
molécule rigide — standžioji molekulė statusas T sritis fizika atitikmenys: angl. rigid molecule vok. starres Molekül, n rus. жёсткая молекула, f pranc. molécule rigide, f … Fizikos terminų žodynas
Rigid rotor — The rigid rotor is a mechanical model that is used to explain rotating systems. An arbitrary rigid rotor is a 3 dimensional rigid object, such as a top. To orient such an object in space three angles are required. A special rigid rotor is the… … Wikipedia
molecule — /mol euh kyoohl /, n. 1. Chem., Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. Chem. a quantity of a substance, the weight of… … Universalium
Molécule diatomique — Une représentation de la molécule diatomique de l azote gazeux, N2. Les molécules diatomiques sont des molécules constituées uniquement de deux atomes, soit de même ou de différents éléments chimiques. Le préfixe di signifie deux en grec.… … Wikipédia en Français
Diatomic molecule — A periodic table showing the elements that form diatomic molecules … Wikipedia
Fluxional molecule — Fluxional molecules are molecules that undergo dynamics such that some or all of their atoms interchange between symmetry equivalent positions. Because virtually all molecules are fluxional in some respects, e.g. bond rotations in most organic… … Wikipedia
Van der Waals molecule — A van der Waals molecule is a stable cluster consisting of two or more molecules held together by van der Waals forces or by hydrogen bonds. The name originated in the beginning of the 1970s when stable molecular clusters were regularly observed… … Wikipedia
Molecular Hamiltonian — In atomic, molecular, and optical physics as well as in quantum chemistry, molecular Hamiltonian is the name given to the Hamiltonian representing the energy of the electrons and nuclei in a molecule. This Hermitian operator and the associated… … Wikipedia