eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences December 2009 21 3 473 476 jusps-B 1157 article S. Sampath Krishnan (sambathk@svce.ac.in 1 D. John Thiruvadigal 2 Department of Applied Physics, Sri Venkateswara College of Engineering, Sriperumbudur - 602 105 (INDIA) SRM University, SRM Nagar, Kattankulathur- 603 203, Chennai (INDIA) <p style="text-align: justify;">The vibrational analyses of 2-halopropenes are carried out by Redington&#39;s method The vibrational analysis comprises the solving of 14 x 14 and an 7x 7 inverse vibrational problems to determine the force field. The force field thus obtained is utilized to evaluate the other molecular constants such as the mean square amplitudes of vibration. The results are compared with those obtained by the earlier workers.</p> <p><em>Key words:</em> ,</p> https://ultraphysicalsciences.org/paper/1157/ Vibrational analysis of polyatomic molecules Force field studies.