HCN Spectral Data Options

HCN Spectral Data Options

The following information may be useful
in choosing which isotopes to search.

Isotope Relative
Atomic Mass Isotopic
  Composition   Standard
Atomic Weight Notes

1 H 1     1.007 825 032 23(9)   0.999 885(70) [1.007 84, 1.008 11] m

D 2     2.014 101 778 12(12)   0.000 115(70)

T 3     3.016 049 2779(24)

6 C 12   12.0000000(00)   0.9893(8) [12.0096, 12.0116]

13   13.003 354 835 07(23)   0.0107(8)

14   14.003 241 9884(40)

7 N 14   14.003 074 004 43(20)   0.996 36(20) [14.006 43, 14.007 28]

15   15.000 108 898 88(64)   0.003 64(20)

NIST Physical Measurement Laboratory

Constants Data for HCN
References for HCN
NIST Chemistry Webbook Search for HCN

Specific Corrections and Reanalysis of the Data:

The substance of the present HCN tables was taken from the excellent review by A. Maki [74001]. This has been supplemented with new data from several recent publications. It should be noted that the calculated hypothetical transition frequency for the J = 2-1 of H¹³C¹⁴N given in table 16 of [74001] is erroneous. The correct measured frequency is given in the microwave spectrum of HCN. The asterisks shown in the uncertainty columns of the spectral line table for HCN indicate that the transition frequency is a calculated rather than a measured value.