HCN Spectral Data Options

Help

Display the following isotopes:

Formula   (# of lines)
H12C14N    (134)
H13C14N    (29)
H12C15N    (25)
D12C14N    (88)
D13C14N    (31)
D12C15N    (29)
T12C14N    (18)
T13C14N    (17)
T12C15N    (17)
H13C15N    (24)
D13C15N    (27)
Total:      (439)

Frequency Range:
to MHz
GHz

ASCII output instead of HTML tables

Select All Isotopes

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 07(10)   0.999 885(70)      1.007 94(7) g,m,r,b,w
D 2     2.014 101 777 8(4)   0.000 115(70)
T 3     3.016 049 2777(25)   

6 C 12   12.000 000 0(0)   0.9893(8)    12.0107(8) g,r
13   13.003 354 8378(10)   0.0107(8)
14   14.003 241 989(4)   

7 N 14   14.003 074 004 8(6)   0.996 36(20)    14.0067(2) g,r,a,d
15   15.000 108 898 2(7)   0.003 64(20)

[skip navigation] National Institute of Standards and Technology NIST Physical Measurement Laboratory NIST Physical Measurement LaboratoryAtomic Weights and Isotopic Compositions Main Page

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.


NIST Physical Measurement Laboratory [skip navigation] National Institute of Standards and Technology NIST Physical Measurement Laboratory Back to the molecule selection page Back to the Triatomic Spectral Database main page