v 6 and v 8 infrared bands and force field of disilane

A. BEN ALTABEF; R. ESCRIBANO

VIBRATIONAL SPECTROSCOPY

ELSEVIER SCIENCE BV

Año: 1992 vol. 4 p. 15 - 23

0924-2031

The infrared absorption spectrum of the v 6 and v 8 bands of disilane (Si2H 6) was recorded at medium resolution (0.1-0.05 cm-1). A rotational analysis of the P(J) and R(J) structure of v 6 was carried out, yielding the band origin and information on the B constant of the ground and v 6 = 1 states of the molecule, and on the Dj centrifugal distortion constant. About 400 transitions of the v s band were assigned and analysed, giving information on the band origin and the rotational constants of the v 8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H 6 and Si2D 6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented. and information on the B constant of the ground and v 6 = 1 states of the molecule, and on the Dj centrifugal distortion constant. About 400 transitions of the v s band were assigned and analysed, giving information on the band origin and the rotational constants of the v 8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H 6 and Si2D 6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented. and information on the B constant of the ground and v 6 = 1 states of the molecule, and on the Dj centrifugal distortion constant. About 400 transitions of the v s band were assigned and analysed, giving information on the band origin and the rotational constants of the v 8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H 6 and Si2D 6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented. and information on the B constant of the ground and v 6 = 1 states of the molecule, and on the Dj centrifugal distortion constant. About 400 transitions of the v s band were assigned and analysed, giving information on the band origin and the rotational constants of the v 8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H 6 and Si2D 6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented. and information on the B constant of the ground and v 6 = 1 states of the molecule, and on the Dj centrifugal distortion constant. About 400 transitions of the v s band were assigned and analysed, giving information on the band origin and the rotational constants of the v 8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H 6 and Si2D 6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented. P(J) and R(J) structure of v 6 was carried out, yielding the band origin and information on the B constant of the ground and v 6 = 1 states of the molecule, and on the Dj centrifugal distortion constant. About 400 transitions of the v s band were assigned and analysed, giving information on the band origin and the rotational constants of the v 8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H 6 and Si2D 6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented.