PPT-On Stereochemistry and Chirality

What is the relationship between RS and dl aka There isnt any Interaction with plane polarized light Nomenclature All Isomers same molecular formula Identical Enantiomers. Enantiomers stereoisomers whose molecules are nonsuperposable mirror images 2 Diastereomers stereoisomers whose molecules are not mirror images of each other Example cis and trans double bond isomers Example cis and trans cycloalkane isomers Two t Dihedral Angle for Ethane httpwww2chem ucalgarycaFlashethanehtml Torsional Strain strain increase in energy due to eclipsing groups eclipsed staggered Conformations of Propane brPage 3br Staggered conformations Energy vs Dihedral Angle for Propane D Conformational isomers can be shown using Newman Projections or Sawhorses Newman Projections The circle in the Newman projection represents the carboncarbon bond viewed one carbon in front of the other Bonds attached to the front carbon are shown by 8 . Slides. First, a little cell biology….. fig 19-1. The mitochondrion . (plural mitochondria). fig 19-1. Krebs cycle. features and. functions. …. fig 16-13. making citrate asymmetric. Stereochemistry of isocitrate production. Configuration. While conformational isomers are . interconvertable. through rotations about single bonds, . configurational. isomers require bond-breaking and reforming for . interconversion. .. Stereoisomers. CanTherm. 27. th. Sept 2013. Shamel Merchant. What is . CanTherm. CanTherm. Thermodynamic Properties. Kinetic rate coefficients. Gaussian. What is . CanTherm. CanTherm. is written in python and can be used for the following calculations. Optical isomers rotate plane polarised light in opposite directions: . one rotates light clockwise and the other anticlockwise. . A mixture containing equal amounts of each isomer is known as a . racemic mixture. Dr. Clower. CHEM 2411. Spring 2014. McMurry. (8. th. ed.) sections . 5.1-5.12, 7.5. Stereochemistry. Branch of chemistry concerned with the 3D arrangement of atoms in molecules. Stereoisomers:. Same molecular formula. Penny Commons. Brendan Abrahams. February STAV . Workshop. Copyright issues. We have replaced the images with their . urls. . Please just click on the . url. and copy the image into the PowerPoint. Any free images have been left in place.. Isomerism. Isomerism. is the phenomenon whereby certain compounds, with the same molecular formula, exist in different forms owing to their different organizations of atoms. The concept of isomerism illustrates the fundamental importance of molecular structure and shape in organic chemistry.. that optical isomerism is a result of chirality in molecules with a . single chiral . centre. understand . that optical isomerism results from chiral centre(s) in . a molecule with . asymmetric carbon atom(s) and that optical isomers are object . . . Isomers . are molecules that have the same molecular formula, but have a different arrangement of the atoms in space. . What are . stereoisomers. In . stereoisomerism, the atoms making up the isomers are joined up in the same order, but still manage to have a different spatial arrangement. Optical isomerism is one form of stereoisomerism.. Chirality, Isomerism, & Stereoisomerism. Lecture No.. 1. What is the difference between an enantiomer and a diastereomer?. Enantiomers and diastereomers are two types of stereoisomers. Enantiomers include mirror images and non-superimposable chiral centers. Diastereomers contain non-superimposable chiral centers, but are not mirror images. Depending on the number of stereocenters, there could be far more than 2 compounds.. Asymmetric carbons. Stereoisomers. R,S nomenclature. Racemic mixtures. Fischer projection. Naming Monosaccharides. Named on the basis of. . Functional groups. Ketone carbonyl =. . ketose. Aldehyde carbonyl =.