PO

Phosphorous Monoxide

Parameter 31P10O   X 2Πr Ref.
A [cm-1] 224.01 a 83015
AJeff [MHz] 3.1026(30)
B0 [MHz] 21899.4915(33)
D0 [kHz] 31.120(42)
p0 [MHz] 188.01(51)
qeff [MHz] -0.57(29)
a + (b+c)/2 [MHz] 472.27(36)
a - (b+c)/2 [MHz] 660.04(12)
b [MHz] 227.5(64)
d [MHz] 751.169(90)
a [MHz] 566.16(19) b
c [MHz] -415.3(64) b
µr [u] 10.547 9377  
r0 [10-10 m] 1.479 13 c  

a Fixed value from R.D. Verma and S.P. Singhal, Can. J. Phys. 53, 411 (1975).

b Derived from the other constants.

c Recalculated as r0 = [505 379.006(51) / µr B0]1/2 with units as given in table.

NIST Physical Measurement Laboratory National Institute of Standards and Technology NIST Physical Measurement Laboratory Back to the diatomic molecule selection page