Carbon can chemical bond with another Carbon, which is a very unusual capability! Carbon can make long chains of carbon atoms “hooked” together. H-C-C-C-C-C-C-C-C-H H H H H H H H H HHHHHHHH
Notice that each Carbon has FOUR lines surrounding it. Each lines represents one pair of shared electrons, one from the carbon atom and one from the hydrogen atom. Carbon has an s 2 p 2 electron configuration.
Carbon Chains are found in nature in many different arrangements………. Some are straight chains …….. H- C - C - C - C - H H H Some are BRANCHED….. H H H H - C - C - C - H C H H HH
C C C C H H H H HH H H H H H H Some are in rings…….
Are NAMED by the type of bond between the Carbons: Carbons can share MULTIPLE number of electrons BETWEEN each atom…….. C DOUBLE BOND
Naming Hints Count from either left or right of compound, that will give the double bond the LOWEST number. Assign number to the double bond. Place numbers in front of compound name, separating using commas. Place a hyphen between numbers and name. Add a numerical prefix BEFORE the ending suffix.
Carbon compounds with a triple bond! H - C = C - C- H Propyne H H
Steps to naming a carbon compound…... 1. Find the longest chain of connected Carbons! 2. Decide on the prefix by the carbon # 3. Decide the suffix by looking at the kind of bonds between the carbons 4. Circle any branches or special groups
5. Name each branch, separately. Add -yl to ending of prefix. One carbon in branch = methyl prefix 6. Place the branch names IN FRONT of the prefix, having the least complex written FIRST !!!!! 7. Assign numbers to the branches, having the lowest total possible.