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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-132.654225
Energy at 298.15K-132.656311
HF Energy-132.654225
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/aug-cc-pVDZ
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' 3579 3426 19.29      
2 A' 3502 3353 93.83      
3 A' 2279 2182 134.44      
4 A' 1625 1556 28.28      
5 A' 1094 1048 18.23      
6 A' 602 576 170.23      
7 A' 483 463 125.64      
8 A' 412 394 11.83      
9 A" 3676 3519 41.22      
10 A" 1193 1142 0.55      
11 A" 657 629 44.12      
12 A" 349 334 8.51      

Unscaled Zero Point Vibrational Energy (zpe) 9726.4 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 9311.1 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/aug-cc-pVDZ
ABC
10.20634 0.31030 0.30371

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 1.370 0.000
C2 0.000 0.159 0.000
N3 0.095 -1.192 0.000
H4 -0.048 2.438 0.000
H5 -0.259 -1.636 0.838
H6 -0.259 -1.636 -0.838

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21042.56371.06853.12953.1295
C21.21041.35432.27891.99801.9980
N32.56371.35433.63221.01251.0125
H41.06852.27893.63224.16434.1643
H53.12951.99801.01254.16431.6761
H63.12951.99801.01254.16431.6761

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.766 C2 C1 H4 179.155
C2 N3 H5 114.396 C2 N3 H6 114.396
H5 N3 H6 111.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.792      
2 C -0.306      
3 N -0.105      
4 H -0.407      
5 H 0.013      
6 H 0.013      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.052 -1.414 0.000 1.762
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.711 1.923 0.000
y 1.923 -12.342 0.000
z 0.000 0.000 -17.276
Traceless
 xyz
x -5.902 1.923 0.000
y 1.923 6.651 0.000
z 0.000 0.000 -0.749
Polar
3z2-r2-1.499
x2-y2-8.368
xy1.923
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.857 -0.036 0.000
y -0.036 7.398 0.000
z 0.000 0.000 3.821


<r2> (average value of r2) Å2
<r2> 44.727
(<r2>)1/2 6.688