FNO

Rotational, centrifugal distortion constants
for 19F14N16O
Watson's
Determinable
Parameters		 Present Value a
[MHz]		 Cook
[MHz]		 Ref.
A″ 95 189.827(78)   65010
B″ 11 844.074(9)  
C″ 10 508.393(8)  
τ1 -0.095 170(2681)  
τ2 -0.060 646(411)  
τ3 b 6.93(2)  
τaaaa -15.771(49) -15.586 926
τbbbb -0.100 443(258) -0.099 630
τcccc -0.056 918(201) -0.056 554
HJ 0.3669(1494) × 10-6  
HJK -0.8311(7102) × 10-5 2.339 × 10-6
HKJ -0.152(243) × 10-4 -4.946 × 10-5
HK 0.158(40) × 10-2  
hJ c -0.128(88) × 10-6  
hJK 0.2545(1300) × 10-4  
hK -0.1219(586) × 10-2  
Std. dev. 0.244  
No. lines fit 90  
Derived Parameters
 (assuming planarity conditions)
A′ 95 189.790(78) 95 189.77
B′ 11 844.137(8) 11 844.12
C′ 10 508.320(8) 10 508.31
τ′bbcc -0.074 37(24) -0.073 67
τ′ccaa 0.1266(33) 0.1402
τ′aabb -0.1474(33)  
τaabb(1) 0.4087(40) 0.418 629
τaabb(2) 0.4258(69)
τaabb(3) 0.4258(69)
τabab(1) -0.2780(34) 0.289 581
τabab(2) -0.2935(61)
τabab(3) -0.2952(69)
Δτ 0.34(16) × 10-3  

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.

 

Molecular parameters for FNO
Parameters 19F14N16O 19F14N16O 19F15N16O Ref.
A 95 189.67(81) 92 667.47(170) 90 828.51(170) 69026 a
B 11 844.065(74) 11 253.92(11) 11 825.33(11)
C 10 508.259(79) 10 012.07(15) 10 437.62(15)
χaa 1.69(5)  
χbb -4.83(5)
χcc 3.14(5)
µa [C · m]
     µa [D]		 5.67 × 10-30 
     1.70 b
µb [C · m]
     µb [D]		 2.07 × 10-30 
     0.62 b

a The values in the table are taken from this reference unless otherwise indicated.

b Reference [51007].

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