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Title: Determination of the rotational constants A and C for a slightly perturbed SiH3CCH molecule
Authors: Al-Share, Mohammad
Keywords: Rotational constants;SiH3CCH molecule;Moment of inertia;Vibrational states
Issue Date: Jun-2004
Publisher: NISCAIR-CSIR, India
IPC Code: G 01J 3/00
Abstract: The rotational constant, A0 , for the ground state of SiH3CCH molecule was calculated using a technique which was used earlier for CH3CCH [Tam H S & Roberts J A, Struct Chem , 1 (1990) 211] and CH3CN [A]-Share M, Hajsaleh J, Qian S W & Roberts J A, Struct Chem , 5 (1994) 109]. This technique is based on calculating the moment of inertia tensors in the bent configuration due to the v10 vibrational state, which is associated with the SiCC bending motion. These values of the moment of inertia were fitted with the values calculated from the rotational constant B, which is found by measuring the rotational frequencies in the microwave and infrared regions experimentally. From the fitting, the bending angle <SiCC and the asymmetry parameters were determined for v10= 1, 2, 3, and 4 bending vibrational states.
Page(s): 423-428
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(06) [June 2004]

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