Five-membered heterocyclic compounds such as furan and its derivatives are widely studied due to their importance in pharmaceutical chemistry, renewable chemical feedstocks, and organic synthesis. Substitution on the furan ring can significantly influence molecular structure and reactivity, making spectroscopic characterization important for understanding these effects. In this study, the rotational spectrum of 2-methoxyfuran was investigated using chirped-pulse Fourier transform microwave (CP-FTMW) spectroscopy and quantum chemistry calculations to examine the influence of methoxy substitution on conformational preference. More than 100 individual transitions were assigned and fit to a model Hamiltonian yielding rotational and centrifugal distortion constants. Methods of data processing will be presented alongside results of the study.
Acknowledgements: I would like to acknowledge support from ACS PRF #66472-UNI6