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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-132.527352
Energy at 298.15K-132.529420
HF Energy-132.527352
Nuclear repulsion energy59.390156
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 HSEh1PBE/6-31G*
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' 3559 3385 10.34      
2 A' 3528 3355 82.40      
3 A' 2288 2176 87.57      
4 A' 1678 1596 31.08      
5 A' 1110 1056 12.91      
6 A' 663 630 245.12      
7 A' 491 467 87.59      
8 A' 356 338 34.72      
9 A" 3651 3472 28.06      
10 A" 1222 1162 0.22      
11 A" 668 635 36.98      
12 A" 365 347 4.24      

Unscaled Zero Point Vibrational Energy (zpe) 9788.4 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 9308.8 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 HSEh1PBE/6-31G*
ABC
10.18876 0.31135 0.30486

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.054 1.366 0.000
C2 0.000 0.159 0.000
N3 0.128 -1.187 0.000
H4 -0.118 2.430 0.000
H5 -0.226 -1.638 0.835
H6 -0.226 -1.638 -0.835

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20862.55961.06503.12323.1232
C21.20861.35182.27351.99451.9945
N32.55961.35183.62451.01291.0129
H41.06502.27353.62454.15404.1540
H53.12321.99451.01294.15401.6691
H63.12321.99451.01294.15401.6691

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.136 C2 C1 H4 179.131
C2 N3 H5 114.253 C2 N3 H6 114.253
H5 N3 H6 110.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.311      
2 C 0.255      
3 N -0.882      
4 H 0.216      
5 H 0.361      
6 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.247 -1.435 0.000 1.901
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.892 1.904 0.000
y 1.904 -11.593 0.000
z 0.000 0.000 -16.531
Traceless
 xyz
x -5.830 1.904 0.000
y 1.904 6.618 0.000
z 0.000 0.000 -0.788
Polar
3z2-r2-1.577
x2-y2-8.298
xy1.904
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.701 -0.107 0.000
y -0.107 6.269 0.000
z 0.000 0.000 2.160


<r2> (average value of r2) Å2
<r2> 44.120
(<r2>)1/2 6.642