Curly arrows representing

In the formation of radicals, a bond is broken and each atom takes one electron from the pair constituting the bond. Bond-making and bond-breaking processes are indicated by single-headed (fishhook) curly arrows representing the movement of one electron. 

Figure given below is a demonstration of how arrows should be drawn. One of the lone pairs of electrons on the hydroxide ion is used to form a bond to the acidic proton of the carboxylic acid. The curly arrow representing this starts from a lone pair of electrons and points to the space between the two atoms to show that a bond is being formed. 

A curly arrow represents the actual movement of a pair of electrons from a filled orbital into an empty orbital. You can think of the curly arrow as representing a pair of electrons thrown, like a climber s grappling hook, across from where he is standing to where he wants to go. In the simplest cases, the result of this movement is to form a bond between a nucleophile and an electrophile. Here are two examples we have already seen in which lone pair electrons are transferred to empty atomic orbitals. 

Curly arrows represent delocalization and mechanisms ch5 e Hbw orbitals overlap to form corrugated systems ch4... 

Early depictions relevant to the development of the electronic theory of organic chemistry A) representation of the reaction between 1,3-butadiene and Br2, in the manner of Robinson, depicting partial bonds and polarities B) the "birth of the Robinson-Kemack curly arrows representing partial valences in 1,3-butadiene C) application by Robinson of curly arrows toward the explanation of meta substitution in nitroso benzene D) early representations by Thiele and others of the equivalence of all bonds in benzene E) Robinson s 1925 representation of benzene... 

A curly arrow represents the movement of a pair of electrons from a filled orbital into an empty orbital. You can think of the curly arrow as representing a pair of electrons thrown, like a... 

Why does a curly arrow represent two electrons Well, as you saw in Chapter 4, it takes two electrons to make a bond, and in these two cases those electrons come from a lone pair. We use a different sort of arrow for movements of one electron, as you will see in Chapters 24 and 37. 

Curly arrows represent delocalization others basic reactions chIO chll... 

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