What Is A Vinylic Hydrogen

The structure of a vinyl group is equivalent to the molecular group when one hydrogen atom is removed from an ethene molecule.

What is a vinylic hydrogen.

Vinyl group vinylic hydrogen vinylic carbocation allylic position benzylic position propargylic position wikipedia entry return to glossary index. In chemistry vinyl or ethenyl abbreviated as vi is the functional group with the formula c h ch 2 it is the ethylene iupac ethene molecule h 2 c ch 2 with one fewer hydrogen atom. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. Vinylic carbon can have only two carbon as the maximum number.

The libretexts libraries are powered by mindtouch and are supported by the department of education open textbook pilot project the uc davis office of the provost the uc davis library the california state university affordable learning solutions program and merlot. Allyl form a stable carbocation because of the electron delocalization. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. It forms at least one double bond.

Vinyl indicates the ch ch 2 functional group which can be formed by removing hydrogen from ethylene molecule. The name is also used for any compound containing that group namely r ch ch 2 where r is any other group of atoms. An industrially important example is vinyl chloride precursor to pvc a plastic. Vinylic c h bond is lower.

The vinylic hydrogens are shown in red. Number of hydrogen atoms. Allylic carbon can have a maximum of 3 hydrogen atoms. Vinylic groups have sp 2 hybridized carbon atoms.

It contains two sp 2 hybridized carbon atoms and three hydrogen atoms. Vinylic carbocations are unstable as they lack p character. Number of carbon hydrogen atoms. Vinylic carbon can have either two double bonds in its sides or one double bond.

Benzylic position allylic position propargylic position aryl aryl hydrogen. Therefore the general molecular formula of vinyl compounds is r ch ch 2 where r is any other group of atoms. The removed hydrogen atom can be replaced by any group of molecules and it is denoted as r. These compounds are very reactive and readily polymerize to form.

Therefore it is also known as an ethenyl group. The libretexts libraries are powered by mindtouch and are supported by the department of education open textbook pilot project the uc davis office of the provost the uc davis library the california state university affordable learning solutions program and merlot. Vinyl group has two carbon atoms and three hydrogen atoms. Allylic carbon only forms a single bond.

An allylic hydrogen is a hydrogen atom that is bonded to an allylic carbon in.