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A chromophore is a molecule which absorbs light at a particular wavelength and reflects color as a result. Chromophores are commonly referred to as colored molecules for this reason. The word is derived from Ancient Greek χρῶμᾰ (chroma) 'color' and -φόρος (phoros) 'carrier of'.
An auxochrome is a functional group of atoms with one or more lone pairs of electrons when attached to a chromophore, alters both the wavelength and intensity of absorption. If these groups are in direct conjugation with the pi -system of the chromophore, they may increase the wavelength at which the light is absorbed and as a result intensify ...
The term, "molecular model" refer to systems that contain one or more explicit atoms (although solvent atoms may be represented implicitly) and where nuclear structure is neglected. The electronic structure is often also omitted unless it is necessary in illustrating the function of the molecule being modeled.
The features need to match different chemical groups with similar properties, in order to identify novel ligands. Ligand-receptor interactions are typically "polar positive", "polar negative" or "hydrophobic". A well-defined pharmacophore model includes both hydrophobic volumes and hydrogen bond vectors.
Jeremy Moeller/GETTY IMAGES. I’d say I identify more as a Posh Spice than Sporty Spice, but after seeing so many British women strolling about in athletic track pants, I’m ready to buy a pair ...
Three children were found living alone in "absolute squalor" in a Pontiac, Michigan, rental home after their mother abandoned them years ago, authorities said. The 34-year-old mother was arrested ...
A donor chromophore, initially in its electronic excited state, may transfer energy to an acceptor chromophore through nonradiative dipole–dipole coupling. [2] The efficiency of this energy transfer is inversely proportional to the sixth power of the distance between donor and acceptor, making FRET extremely sensitive to small changes in ...
Kanye West’s X account has been deactivated after the controversial rapper spent several days posting racist and antisemitic comments, from declaring “I’m a Nazi” to calling Hitler “so ...