dipolar structure

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• Dipolar bond — A dipolar bond,[1] also known as dative covalent bond[2] or coordinate bond[3] is a kind of 2 centre, 2 electron covalent bond in which the two electrons derive from the same atom. Typically, a dipolar bond is formed when a Lewis base donates a… …   Wikipedia

• Dipolar compound — Example of a dipolar compound, represented by a resonance structure (isocyanide) In organic chemistry, a dipolar compound or simply dipole is an electrically neutral molecule carrying a positive and a negative charge in at least one canonical… …   Wikipedia

• Residual dipolar coupling — The residual dipolar coupling between two spins in a molecule occurs if the molecules in solution exhibit a partial alignment leading to an incomplete averaging of spatially anisotropic dipolar couplings.Partial molecular alignment leads to an… …   Wikipedia

• Acoplamiento dipolar residual — El acoplamiento dipolar residual (Residual Dipolar Coupling (RDC) por su nombre en inglés)entre dos spines en una molécula ocurre si las moléculas en solución exhiben un alineamiento parcial que conduce a un promediado incompleto de los… …   Wikipedia Español

• protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …   Universalium

• Nitrone — Structure générale d une nitrone Une nitrone est un amine oxyde (N oxyde) d une imine, elle peut être vue comme un N alkyloxime. C est un groupe fonctionnel. La structure générale en est R1R2C=NR3+O où R3 est différent de H. Une nitrone est u …   Wikipédia en Français

• Lactame — Structure général de la β lactame, la γ lactame, la δ lactame et la ε lactame. Les lactames sont une famille de composés organiques. Ils sont caractérisés par une fonction amide incluse dans un cycle carboné. Synthèse Des méthodes générales de… …   Wikipédia en Français

• Nuclear magnetic resonance crystallography — (NMR crystallography) is a method which utilizes primarily NMR spectroscopy to determine the structure of solid materials on the atomic scale. Thus, solid state NMR spectroscopy would be used primarily, possibly supplemented by quantum chemistry… …   Wikipedia

• Nuclear magnetic resonance spectroscopy of proteins — (usually abbreviated protein NMR) is a field of structural biology in which NMR spectroscopy is used to obtain information about the structure and dynamics of proteins. The field was pioneered by Richard R. Ernst and Kurt Wüthrich[1], among… …   Wikipedia

• Solid-state nuclear magnetic resonance — (NMR) spectroscopy, characterized by the presence of anisotropic (directionally dependent) interactions.IntroductionBasic conceptsA spin interacts with a magnetic or an electric field. Spatial proximity and/or a chemical bond between two atoms… …   Wikipedia

• Nuclear magnetic resonance — This article is about the physical phenomenon. For its use as a method in spectroscopy, see Nuclear magnetic resonance spectroscopy. NMR redirects here. For other uses, see NMR (disambiguation). First 1 GHz NMR Spectrometer (1000 MHz,… …   Wikipedia