How many stereocenter(s) does Ibuprofen have ? What is/are the R or S configuration of the stereocenter(s) ? How many diastereomer(s) does Ibuprofen have? If none, explain why?
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
How many stereocenter(s) does Ibuprofen have ? What is/are the R or S configuration of the stereocenter(s) ?
How many diastereomer(s) does Ibuprofen have? If none, explain why?
Stereocenter is the point in a molecule with different substituents such that altering any 2 substituents results in stereoisomers.
The R and S configuration are used to describe the enantiomers. R means 'rectus' configuration S means 'sinister' configuration. Here R can be determined by right handedness or clockwise represented molecules and S can be determined by left handedness or anticlockwise represented molecules as the above diagram. Clockwise or anticlockwise numbering for molecules are given by Cann-Ingold-Prelogs (CIP) rules. According to CIP rules we can determine the configuration. CIP rules are as follows-
- Atom having highest atomic number will get the first priority.
- When we compare isotopes, we must consider highest mass number isotope.
- If there is a tie between the above two rules, then we must consider the chain i.e., triple bond>double bond>single bond.
Diastereomers are those isomers with more than 2 stereocenters. They are non-superimposable non-mirror images of the molecule.
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