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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/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 wB97X-D/6-31G**
 hartrees
Energy at 0K-132.637257
Energy at 298.15K-132.639395
HF Energy-132.637257
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**
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' 3599 3599 17.74      
2 A' 3514 3514 82.84      
3 A' 2295 2295 90.73      
4 A' 1654 1654 33.16      
5 A' 1103 1103 14.71      
6 A' 632 632 227.28      
7 A' 500 500 122.61      
8 A' 419 419 16.44      
9 A" 3700 3700 32.49      
10 A" 1207 1207 0.19      
11 A" 670 670 36.85      
12 A" 373 373 5.25      

Unscaled Zero Point Vibrational Energy (zpe) 9832.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9832.8 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 wB97X-D/6-31G**
ABC
10.19882 0.31115 0.30458

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.075 1.365 0.000
C2 0.000 0.161 0.000
N3 0.143 -1.187 0.000
H4 -0.154 2.426 0.000
H5 -0.199 -1.639 0.837
H6 -0.199 -1.639 -0.837

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20672.56121.06403.12123.1212
C21.20671.35512.27061.99491.9949
N32.56121.35513.62511.01071.0107
H41.06402.27063.62514.15094.1509
H53.12121.99491.01074.15091.6733
H63.12121.99491.01074.15091.6733

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.501 C2 C1 H4 179.291
C2 N3 H5 114.175 C2 N3 H6 114.175
H5 N3 H6 111.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.287      
2 C 0.274      
3 N -0.772      
4 H 0.188      
5 H 0.299      
6 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.193 -1.431 0.000 1.863
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.861 1.725 0.000
y 1.725 -11.557 0.000
z 0.000 0.000 -16.473
Traceless
 xyz
x -5.846 1.725 0.000
y 1.725 6.610 0.000
z 0.000 0.000 -0.764
Polar
3z2-r2-1.528
x2-y2-8.304
xy1.725
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.721 -0.175 0.000
y -0.175 6.270 0.000
z 0.000 0.000 2.183


<r2> (average value of r2) Å2
<r2> 44.107
(<r2>)1/2 6.641