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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-132.646073
Energy at 298.15K-132.648297
HF Energy-132.646073
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/6-31G(2df,p)
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' 3592 3592 17.31      
2 A' 3529 3529 88.13      
3 A' 2299 2299 87.76      
4 A' 1645 1645 27.48      
5 A' 1096 1096 13.46      
6 A' 651 651 199.69      
7 A' 516 516 103.73      
8 A' 455 455 12.58      
9 A" 3684 3684 34.09      
10 A" 1206 1206 0.00      
11 A" 703 703 34.40      
12 A" 383 383 7.04      

Unscaled Zero Point Vibrational Energy (zpe) 9879.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9879.9 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/6-31G(2df,p)
ABC
10.20469 0.31317 0.30664

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.054 1.361 0.000
C2 0.000 0.162 0.000
N3 0.128 -1.185 0.000
H4 -0.114 2.421 0.000
H5 -0.228 -1.631 0.833
H6 -0.228 -1.631 -0.833

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20062.55251.06133.11063.1106
C21.20061.35272.26181.98981.9898
N32.55251.35273.61371.00991.0099
H41.06132.26183.61374.13794.1379
H53.11061.98981.00994.13791.6664
H63.11061.98981.00994.13791.6664

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.167 C2 C1 H4 179.404
C2 N3 H5 113.967 C2 N3 H6 113.967
H5 N3 H6 111.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.206      
2 C 0.081      
3 N -0.667      
4 H 0.212      
5 H 0.290      
6 H 0.290      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.094 -1.392 0.000 1.770
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.703 1.729 0.000
y 1.729 -11.687 0.000
z 0.000 0.000 -16.513
Traceless
 xyz
x -5.602 1.729 0.000
y 1.729 6.421 0.000
z 0.000 0.000 -0.818
Polar
3z2-r2-1.637
x2-y2-8.016
xy1.729
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.201 -0.091 0.000
y -0.091 6.318 0.000
z 0.000 0.000 2.551


<r2> (average value of r2) Å2
<r2> 43.890
(<r2>)1/2 6.625