molecular dimensions

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• molecular — adj. of, relating to, or consisting of molecules. Phrases and idioms: molecular biology the study of the structure and function of large molecules associated with living organisms. molecular sieve a crystalline substance with pores of molecular… …   Useful english dictionary

• molecular sieve — noun : a crystalline substance (as a zeolite) that is characterized by pores of molecular dimensions and uniform size formed by heating to drive off the water of hydration and that by its ability to adsorb small molecules but not large ones can… …   Useful english dictionary

• Molecular symmetry — in chemistry describes the symmetry present in molecules and the classification of molecules according to their symmetry. Molecular symmetry is a fundamental concept in chemistry, as it can predict or explain many of a molecule s chemical… …   Wikipedia

• Molecular graphics — (MG) is the discipline and philosophy of studying molecules and their properties through graphical representation.[1] IUPAC limits the definition to representations on a graphical display device .[2] Ever since Dalton s atoms and Kekulé s benzene …   Wikipedia

• Molecular solid — is a solid composed of molecules held together by the van der Waals forces. Because these dipole forces are weaker than covalent or ionic bonds, molecular solids are soft and have relatively low melting temperature. Pure molecular solids are… …   Wikipedia

• Molecular model — A molecular model, in this article, is a physical model that represents molecules and their processes. The creation of mathematical models of molecular properties and behaviour is molecular modelling, and their graphical depiction is molecular… …   Wikipedia

• Molecular switch — A molecular switch is a molecule that can be reversibly shifted between two or more stable states.[1] The molecules may be shifted between the states in response to changes in e.g. pH, light, temperature, an electrical current, microenvironment,… …   Wikipedia

• Molecular geometry — Geometry of the water molecule Molecular geometry or molecular structure is the three dimensional arrangement of the atoms that constitute a molecule. It determines several properties of a substance including its reactivity, polarity, phase of… …   Wikipedia

• Molecular knot — Crystal structure of a molecular trefoil knot with two copper(I) templating ions bound within it reported by Sauvage and coworkers in Recl. Trav. Chim. Pay. B., 1993, 427 428 …   Wikipedia

• Molecular diffusion — This article is about spontaneous dispersion of mass. For a more generic treatment of diffusion, see Diffusion. Diffusion from a microscopic and macroscopic point of view. Initially, there are solute molecules on the left side of a barrier… …   Wikipedia

• Molecular clusters — Atomic and molecular clusters are aggregates of 5 105 atomic or molecular units. They classify according to the forces holding them together: Van der Waals clusters attraction between induced electric dipoles and repulsion between electron cores… …   Wikipedia