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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-132.320859
Energy at 298.15K-132.322996
HF Energy-131.875968
Nuclear repulsion energy59.201675
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 CCD/6-311G*
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' 3586 3425 11.19      
2 A' 3486 3329 67.73      
3 A' 2263 2162 73.52      
4 A' 1730 1653 39.32      
5 A' 1071 1023 8.73      
6 A' 766 732 260.74      
7 A' 505 482 85.55      
8 A' 381 364 13.68      
9 A" 3675 3510 18.61      
10 A" 1264 1207 0.03      
11 A" 646 617 41.37      
12 A" 352 336 4.40      

Unscaled Zero Point Vibrational Energy (zpe) 9862.6 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 9419.8 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 CCD/6-311G*
ABC
10.03744 0.30876 0.30264

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.004 1.371 0.000
C2 0.000 0.163 0.000
N3 0.095 -1.201 0.000
H4 -0.043 2.436 0.000
H5 -0.300 -1.618 0.831
H6 -0.300 -1.618 -0.831

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20752.57341.06543.11643.1164
C21.20751.36732.27261.98841.9884
N32.57341.36733.63881.01021.0102
H41.06542.27263.63884.14584.1458
H53.11641.98841.01024.14581.6618
H63.11641.98841.01024.14581.6618

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.197 C2 C1 H4 178.081
C2 N3 H5 112.645 C2 N3 H6 112.645
H5 N3 H6 110.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability