BIOC 1430 Lecture Notes - Lecture 3: Structural Formula, Chemical Formula, Molecular Geometry
4 Apr 2016
School
Department
Course
Professor
Document Summary
Such 2 dimensional representation is of 2 types: expanded structural formula: shows all the atoms in a molecule and all the bonds that connect to them. Propane: condensed structural formula: shows groups of atoms. The central atoms and the atoms connected to them are written as a group. Ch3 ch3 ch3 ch2 ch3. Propane: skeletal structural formula: shows the carbon arrangement but does not show the. Systematic rules exist for naming of organic compounds: rules were formulated by iupac, assigns each compound with a name that not only identifies it but also enables us to draw its structural formula. Prefixes are used to show the number of carbon atoms in continuos-chain alkanes. See table on page 9: to name branched-chain alkanes, the branch attached to the main carbon chain have to be named. These braces are called substituents: a substituent is an atom or group of atoms attached to a chain (or ring) of carbon atoms.
