ABSTRACT
The study of nonrigid and quasi-linear molecular species is complicated by the highly anharmonic nature of the long-amplitude motions involved. In the present work we use an algebraic approach to calculate infrared transition amplitudes associated to the vibrational bending mode of non-rigid or floppy molecules. The algebraic model is simple and tractable, however it has enough physical content to be able to model transition amplitudes for situations ranging from rigidly-linear to rigidly-bent cases. As an application, the infrared amplitudes of the vibrational bending of https://www.w3.org/1998/Math/MathML"> C 3 https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429076619/c00d8d0d-b3a0-431a-a3c2-e044ea15f7a5/content/eq7447.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> in its ground electronic state are calculated.
