Nature of C-X Bond [Haloalkanes & Haloarenes]
NATURE OF C-X BOND : • Halogens is more electronegative than carbons. • Carbon atom has partial positive charge • The nature of C-X bond depends on both the nature of carbon in the aromatic ring and the halogen attached. • Florine has the highest electronegative element of halogens. • The halogens elements(17th group) are just one electron short of completing their nearest novel gas configurations. • Electronegativity increased across a period from left to right. (F>Cl>Br>I) • The C-X bond in haloarenes is polarised as 'X' are more electronegative than carbon. • The only one sigma bond is formed between one carbon and one halogen. • The atomic size has increased Florine to down the period. • The C-X bond length in haloarenes increases from Florine(F) to Astetine(As) and bond dissociated strength decreases....