# Predicting the Hybridization of Heterocyclic Compounds

The state of s-p hybridization of hetero atoms in heterocyclic compounds have been empirically calculated1 from the number of bonds and delocalized ion pair of electrons associated with it in the following way:

$X = TNBS + DLP \tag{1}$

where

• $$X$$ is the total power on Hybridization State,
• $$TNBS$$ is the total Number of bonds directly attached with hetero atom excluding H bond if any attached with hetero atom, and
• $$DLP$$ is the delocalized ion pair electrons through resonance
• For sp ; Power on s = 1 and Power on p = 1, Hence Total power = (1+1) = 2
• For sp2 ; Power on s =1 and Power on p = 2, Hence Total power =3 = (1+2) = 3
• For sp3 ; Power on s = 1 and Power on p = 3,Hence Total power = (1+3) = 4

Examples have been illustrated in Table 1

## References

1. 1.' Time Economic Innovative Methodology on the Prediction of Hybridization State of Heterocyclic Compounds' Arijit Das, Bijaya Paul, R.Sanjeev and V.Jagannadham, IOSR Journal of Applied Chemistry (IOSR-JAC) e-ISSN: 2278- 5736.Volume 7, Issue 8 (2), (Aug-2014), PP 38-39, DOI: 10.9790/5736-07412429
2. https://communities.acs.org/docs/DOC-50092
3. http://www.drarijitdaschem.in/IOSR%20JAC-2014.pdf

## Contributor

• Dr. Arijit Das, Ph.D. (Inorganic Chemistry), MACS ( Invited,USA ), SFICS, MISC, MIAFS (India), Assistant Professor, Department of Chemistry, Ramthakur College, Agartala, Tripura(W), Tripura, India, Pin-799003.