Q43. - Organic Chemistry

Question

Question: Creatine is a dietary supplement used by some athletes to boost their athletic performance.

(a) Draw in all lone pairs in creatine. (b) Draw two additional resonance structures showing all lone pairs and formal charges.

                                

Step-by-Step Solution

Answer

Answer

(a) The lone pairs present in creatine are given below:

                                     

 

(b) The additional resonance structures of creatine are given below:

                       

Step-by-Step Solution Step 1: Resonance structures

Resonance structures denote various Lewis structures in which the atoms are placed similarly, whereas the electrons are arranged differently

Step 2: Representation of lone pairs in creatine

(a) The valency of carbon, nitrogen, and oxygen are four, five, and six, respectively. The unshared electron pairs are represented as the lone pairs. The lone pairs present in creatine are shown in the figure given below:

                                     

                                   Representation of Lone pairs in creatine

Step 3: Resonance structures of creatine

(b) The lone pairs and the double bonds are shifted between the atoms to obtain the different resonance structures of creatine.

The additional resonance structures of creatine can be drawn as follows:

               

                                                 Resonance structures of creatine