enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Carbohydrate conformation - Wikipedia

   en.wikipedia.org/wiki/Carbohydrate_conformation

   The chair conformation of six-membered rings have a dihedral angle of 60° between adjacent substituents thus usually making it the most stable conformer. Since there are two possible chair conformation steric and stereoelectronic effects such as the anomeric effect, 1,3-diaxial interactions, dipoles and intramolecular hydrogen bonding must be taken into consideration when looking at relative ...

3. Haworth projection - Wikipedia

   en.wikipedia.org/wiki/Haworth_projection

   In chemistry, a Haworth projection is a common way of writing a structural formula to represent the cyclic structure of monosaccharides with a simple three-dimensional perspective. Haworth projection approximate the shapes of the actual molecules better for furanoses —which are in reality nearly planar—than for pyranoses that exist in ...

4. Space-filling model - Wikipedia

   en.wikipedia.org/wiki/Space-filling_model

   A space-filling model of n-octane, the straight chain (normal) hydrocarbon composed of 8 carbons and 18 hydrogens, formulae: CH 3 CH 2 (CH 2) 4 CH 2 CH 3 or C 8 H 18.Note, the representative shown is of a single conformational "pose" of a population of molecules, which, because of low Gibbs energy barriers to rotation about its carbon-carbon bonds (giving the carbon "chain" great flexibility ...

5. Newman projection - Wikipedia

   en.wikipedia.org/wiki/Newman_projection

   A Newman projection is a drawing that helps visualize the 3-dimensional structure of a molecule. [1] This projection most commonly sights down a carbon-carbon bond, making it a very useful way to visualize the stereochemistry of alkanes.

6. Fischer projection - Wikipedia

   en.wikipedia.org/wiki/Fischer_projection

   In chemistry, the Fischer projection, devised by Emil Fischer in 1891, is a two-dimensional representation of a three-dimensional organic molecule by projection. Fischer projections were originally proposed for the depiction of carbohydrates and used by chemists, particularly in organic chemistry and biochemistry. The use of Fischer projections ...

7. Structural formula - Wikipedia

   en.wikipedia.org/wiki/Structural_formula

   Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space.

8. Growing number of U.S. adults lack literacy skills, survey shows

   www.aol.com/news/growing-number-u-adults-lack...

   The share of adults with literacy skills at the lowest measured levels increased, according to the National Center for Education Statistics’ Survey of Adult Skills.

9. Nuclear magnetic resonance spectroscopy of carbohydrates

   en.wikipedia.org/wiki/Nuclear_magnetic_resonance...

   Carbohydrate NMR spectroscopy is the application of nuclear magnetic resonance (NMR) spectroscopy to structural and conformational analysis of carbohydrates.This method allows the scientists to elucidate structure of monosaccharides, oligosaccharides, polysaccharides, glycoconjugates and other carbohydrate derivatives from synthetic and natural sources.