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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBE1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.573213
Energy at 298.15K-132.575389
HF Energy-132.573213
Nuclear repulsion energy59.697421
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 PBE1PBE/6-311+G(3df,2p)
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' 3581 3581 19.40      
2 A' 3490 3490 99.46      
3 A' 2261 2261 138.87      
4 A' 1635 1635 29.81      
5 A' 1105 1105 18.04      
6 A' 593 593 163.53      
7 A' 503 503 137.36      
8 A' 444 444 10.22      
9 A" 3669 3669 45.94      
10 A" 1192 1192 0.19      
11 A" 710 710 41.27      
12 A" 378 378 10.09      

Unscaled Zero Point Vibrational Energy (zpe) 9779.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9779.2 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 PBE1PBE/6-311+G(3df,2p)
ABC
10.38117 0.31474 0.30787

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.025 1.360 0.000
C2 0.000 0.159 0.000
N3 0.097 -1.181 0.000
H4 -0.054 2.422 0.000
H5 -0.238 -1.635 0.836
H6 -0.238 -1.635 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20112.54401.06223.11643.1164
C21.20111.34372.26331.99331.9933
N32.54401.34373.60601.00861.0086
H41.06222.26333.60604.14584.1458
H53.11641.99331.00864.14581.6722
H63.11641.99331.00864.14581.6722

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.048 C2 C1 H4 179.628
C2 N3 H5 115.118 C2 N3 H6 115.118
H5 N3 H6 111.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.034      
2 C 0.233      
3 N -0.865      
4 H 0.203      
5 H 0.198      
6 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.976 -1.524 0.000 1.810
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.713 1.785 0.000
y 1.785 -12.295 0.000
z 0.000 0.000 -17.216
Traceless
 xyz
x -5.957 1.785 0.000
y 1.785 6.670 0.000
z 0.000 0.000 -0.712
Polar
3z2-r2-1.425
x2-y2-8.418
xy1.785
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.744 -0.061 0.000
y -0.061 7.282 0.000
z 0.000 0.000 3.703


<r2> (average value of r2) Å2
<r2> 44.263
(<r2>)1/2 6.653