Accurate ro-vibrational rest frequencies of DC4H at infrared and millimetre wavelengths

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Table 1

Band origins and vibrational state constants for the unperturbed vibrational bands of DC₄H.

Parameter	Unit	Ground state	Ground state	v₇ = 1
		This work	(Tanaka et al. 1988)


v ₀	/ cm^-1			471.401399(64)
B _v	/ MHz	4084.453438(68)	4084.4546(18)	4090.6191(19)
D _v	/ kHz	0.394107(29)	0.402(12)	0.40229(36)
H _v	/ mHz	0.0280(36)		0.0280^a
q _v	/ MHz			3.0402(22)
q _vJ	/ Hz			−3.56(54)

Notes. The numbers in parentheses are 1σ uncertainties expressed in units of the last quoted digit.

^(a)

Fixed.

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