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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/CEP-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 wB97X-D/CEP-31G
 hartrees
Energy at 0K-22.880963
Energy at 298.15K-22.883005
HF Energy-22.880963
Nuclear repulsion energy 
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 wB97X-D/CEP-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' 3675 3675 31.34      
2 A' 3513 3513 83.92      
3 A' 2242 2242 141.41      
4 A' 1669 1669 59.55      
5 A' 1102 1102 25.06      
6 A' 562 562 137.87      
7 A' 469 469 78.70      
8 A' 378 378 401.85      
9 A" 3814 3814 42.25      
10 A" 1154 1154 6.86      
11 A" 775 775 63.75      
12 A" 348 348 17.50      

Unscaled Zero Point Vibrational Energy (zpe) 9850.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9850.6 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 wB97X-D/CEP-31G
ABC
11.04646 0.29812 0.29029

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 1.408 0.000
C2 0.000 0.159 0.000
N3 0.002 -1.205 0.000
H4 -0.004 2.477 0.000
H5 0.003 -1.719 0.870
H6 0.003 -1.719 -0.870

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.24912.61301.06893.24613.2461
C21.24911.36402.31802.06992.0699
N32.61301.36403.68201.01071.0107
H41.06892.31803.68204.28554.2855
H53.24612.06991.01074.28551.7402
H63.24612.06991.01074.28551.7402

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.965 C2 C1 H4 179.935
C2 N3 H5 120.582 C2 N3 H6 120.582
H5 N3 H6 118.837
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.505      
2 C -0.283      
3 N -0.303      
4 H 0.401      
5 H 0.345      
6 H 0.345      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.004 -1.908 0.000 1.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.902 -0.010 0.000
y -0.010 -10.814 0.000
z 0.000 0.000 -16.610
Traceless
 xyz
x -7.191 -0.010 0.000
y -0.010 7.943 0.000
z 0.000 0.000 -0.752
Polar
3z2-r2-1.504
x2-y2-10.089
xy-0.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.921 -0.010 0.000
y -0.010 6.803 0.000
z 0.000 0.000 2.165


<r2> (average value of r2) Å2
<r2> 38.914
(<r2>)1/2 6.238