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)
1	-0.095 170(2681)
2	-0.060 646(411)
3 b	6.93(2)
aaaa	-15.771(49)	-15.586 926
bbbb	-0.100 443(258)	-0.099 630
cccc	-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
bbcc	-0.074 37(24)	-0.073 67
ccaa	0.1266(33)	0.1402
aabb	-0.1474(33)
aabb(1)	0.4087(40)	0.418 629
aabb(2)	0.4258(69)
aabb(3)	0.4258(69)
abab(1)	-0.2780(34)	0.289 581
abab(2)	-0.2935(61)
abab(3)	-0.2952(69)
	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, ₃ is not a determinable parameter, but is calculated from ₁, ₂, _aaaa, and _bbbb using the planarity conditions.

^c Watson uses 2h_J 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)
aa	1.69(5)
bb	-4.83(5)
cc	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].