Exploring the self-assembly dynamics of novel steroid-coumarin conjugates: a comprehensive spectroscopic and

Claudia M Ramírez-Lozano1, Ma Eugenia Ochoa1, Pablo Labra-Vázquez2

  • 1Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Apdo. Postal 14-740, 07000, Mexico. rsantill@cinvestav.mx.

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Infrared spectroscopy is primarily used to determine the types of bonds and functional groups. In carboxylic acid derivatives, a typical carbonyl bond absorption is observed around 1650–1850 cm−1. For esters, the absorption is recorded at around 1740 cm−1, while acid halides show the absorption at about 1800 cm−1. Another acid derivative, the acid anhydrides, exhibit two carbonyl absorption around 1760 cm−1 and 1820 cm−1, arising from the symmetrical and...
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