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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-132.544767
Energy at 298.15K-132.546687
HF Energy-132.544767
Nuclear repulsion energy59.153335
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBEultrafine/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3448 3412 3.91      
2 A' 3412 3376 69.59      
3 A' 2192 2169 97.05      
4 A' 1641 1624 32.14      
5 A' 1073 1062 10.96      
6 A' 617 610 241.20      
7 A' 471 466 67.94      
8 A' 288 285 41.15      
9 A" 3527 3490 15.47      
10 A" 1190 1177 0.16      
11 A" 631 624 36.89      
12 A" 352 348 8.37      

Unscaled Zero Point Vibrational Energy (zpe) 9419.6 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 9321.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBEultrafine/6-311G*
ABC
10.11942 0.30920 0.30264

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.061 1.372 0.000
C2 0.000 0.158 0.000
N3 0.037 -1.195 0.000
H4 0.056 2.442 0.000
H5 -0.340 -1.631 0.841
H6 -0.340 -1.631 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21532.56671.07023.14403.1440
C21.21531.35332.28462.00582.0058
N32.56671.35333.63681.01941.0194
H41.07022.28463.63684.17774.1777
H53.14402.00581.01944.17771.6813
H63.14402.00581.01944.17771.6813

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.562 C2 C1 H4 176.861
C2 N3 H5 114.692 C2 N3 H6 114.692
H5 N3 H6 111.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.192      
2 C 0.158      
3 N -0.860      
4 H 0.216      
5 H 0.339      
6 H 0.339      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.294 -1.565 0.000 2.030
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.194 2.329 0.000
y 2.329 -12.100 0.000
z 0.000 0.000 -16.989
Traceless
 xyz
x -5.649 2.329 0.000
y 2.329 6.491 0.000
z 0.000 0.000 -0.842
Polar
3z2-r2-1.683
x2-y2-8.094
xy2.329
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.206 0.282 0.000
y 0.282 6.783 0.000
z 0.000 0.000 2.519


<r2> (average value of r2) Å2
<r2> 44.658
(<r2>)1/2 6.683