[Chemistry Class Notes] on Organic Compounds – Structural Representation Pdf for Exam

Decoding the Structural Representation of Organic Compounds 

Organic Chemistry is one of the essential topics that the students uncover in their preliminary exams at secondary levels. The chapter is of great significance as it teaches the structural formula of carbon compounds, allowing us to have a detailed look into the basics of organic compounds and formulas of organic compounds. The chapter teaches the basics around molecular structuration at its very base and breaks down the concept around carbon and its compounds. Therefore, it is essential to figure out the basics around the chemical structure of organic compounds with the given chapter, that aims to simplify the complexity around organic compounds and their presentation. 

What is an Organic Compound?

In chemistry, carbon has been regarded highly for its catenation property, allowing the element to quickly bond with any given element that it interacts with. The covalently bonded organic compound that comes to play with the carbon-containing compounds is called organic compounds that are present over different substances across the realms of earth. 

The specific branch of science that deals with all the organic compounds that are found on the realm of the earth is called organic chemistry. Organic chemistry covers all the essential topics, ranging from the characteristic feature of the suggested organic compound to its properties, and the differential behaviour that these compounds represent under different conditions. Further, the organic compound also discusses the general formula organic chemistry.

Structural Representation of Organic Compounds:

While it’s normal for organic compounds to have a single chemical formula, it’s composition can be depicted in ways, more than one. The structural formula in organic chemistry can be broadly categorised into three structural formulas, namely: complete structure, bond line structural formulas and condensed structure. All of which are represented below

Organic Compounds Structural Formulas

Complete Structural Formula:

The molecular formula of organic compounds can be further divided and subdivided into several exclusive organic structural formulas. The Lewis dot structure is one such formula that is considered to be the complete format of structural formula. 

Under the molecular formula organic chemistry, Lewis structure is responsible for the formation of covalent bonds that are denoted over a simple use of dash (―). This way, the energy quickly helps emphasise the total number of bonds that are formed by the electrons. Every formula of alkane group comes with a single bond, a double bond, and a triple bond that can be easily segregated over a dash, double dash, or a triple dash respectively. This dash is used to represent every single bond while writing structural formulas for organic compounds.

Condensed Structural Formula:

Since it is not a completely viable option to write the structural formula and the fact that it consumes a lot of time and space to come up with a possible structure for your formula, organic chemistry allows easy condensation of these formulas. The condensed structural formulas represent a simple covalency by segregating the dashes/bonds with the help of many identical groups that are attached to an atom with the use of a subscript.

Bond Line Structural Formula:

Third and the last way to represent the structural formula for alkanes alkenes and alkynes along with compounds and other matters, the bond line a structural formula is a straightforward approach. This structural formula helps with an uncomplicated representation of organic compounds.  Under the bond line structural formula, every bond is represented from its core, with the help of skeletal formula of alkanes that form as a zigzag manner over a line. When the formula suggested is not specified, every terminal over the compound is assumed to be a methyl (-CH3) group.