CHM 2120 Study Guide - Midterm Guide: Double Bond, Electronegativity, Best Response
Document Summary
Organic reactions happen when electrons move: easiest to understand by organic mechanisms. 3 general concepts (know: work with functional groups. Don"t worry about how the molecule looks, worry about the functional group. Functional group are locations on a molecule that react: reaction = function, use arrows to show bonds formation, use arrows to show bonds breaking, use arrows to show charge formation. Identifying functional groups: heteroatom, unsaturation (double bond or higher, atom that carries a charge. Hydrocarbon part does not react: scaffolding that holds functional group, hydrocarbon can be abbreviated as r , just focus on the functional group. Bond formation: arrows show e- movement. Always show e- pairs with negative charges. When a double barbed arrow points to an atom, the atom gains electrons and becomes. 1 unit more negative: arrow points at more electronegative, unless it already has a (full) negative charge.
