NSF

Rotational, centrifugal distortion constants

Watson's
Determinable
Parameters
14N32S19F a
[MHz]
Ref. 14N34S19F a
[MHz]
Ref.
A 49 719.6068(172) 72031 48 298.98 67013
B 8 712.258 90(316) 8701.26
C 7392.998 08(269) 7352.78
τ1 0.377 175 0(273 83)  
τ2 0.025 408 1(4089)
τ3 b 1.276(9)
τaaaa -8.896 917(3700) -8.467 07 67013
τbbbb -0.056 255 26(151 69) -0.057 13
τcccc -0.019 434 3(1098)  
HJ 0.4061(2701) x 10-7
HJK 0.3390(3104) x 10-6
HKJ -0.308 61(3795) x 10-4
HK 0.422 85(4015) x 10-3
hJ c 0.9933(3768) x 10-8
hJK 0.1770(986) x 10-5
hK -0.1116(2976) x 10-4
Std. dev. 0.047
No. lines fit 76
Derived Parameters
 (assuming planarity conditions)
A 49 719.592(17) 72031  
B 8712.324(3)
C 7393.137(3)
τbbcc -0.030 43(13)
τccaa 0.1303(7)
τaabb 0.2773(19)
τaabb(1) 0.4572(11) 0.429 93 67013
τaabb(2) 0.4469(10)
τaabb(3) 0.4469(10)
τabab(1) -0.089 96(40) 0.083 46
τabab(2) -0.081 00(53)
τabab(3) -0.079 67(56)
Δτ -0.335(9)  

a The uncertainties quoted are one standared deviation as estimated by the least squares fit. The number of significant figures quoted are necessary to reproduce the calculated transition frequencies within their standard deviations.

b Strictly speaking, τ3 is not a determinable parameter, but is calculated from τ1, τ2, τaaaa, and τbbbb using the planarity conditions.

c Watson uses 2hJ for this parameter.

Hyperfine constants and electric dipole moment of 14N32S19F

Parameter Value Ref.
χaa (14N) [MHz] -1.720(41) This work
χbb (14N) [MHz] -3.990(36)
χcc (14N) [MHz] 5.710(46)
µa [C · m]
     µa [D]
0.807(40) x 10-30 
     0.242(12)
67013
µb [C · m]
     µb [D]
6.291(37) x 10-30 
     1.886(11)


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