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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-132.356437
Energy at 298.15K-132.358565
HF Energy-131.864656
Nuclear repulsion energy59.265201
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 MP2/6-31G(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 3393 18.47      
2 A' 3566 3368 93.69      
3 A' 2234 2110 62.99      
4 A' 1654 1562 26.42      
5 A' 1074 1015 8.90      
6 A' 730 690 209.51      
7 A' 510 482 77.84      
8 A' 385 364 8.81      
9 A" 3691 3486 37.78      
10 A" 1218 1150 0.05      
11 A" 643 607 37.93      
12 A" 352 333 2.81      

Unscaled Zero Point Vibrational Energy (zpe) 9825.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 9279.9 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 MP2/6-31G(2df,p)
ABC
10.03266 0.30950 0.30353

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 1.371 0.000
C2 0.000 0.159 0.000
N3 0.121 -1.196 0.000
H4 -0.078 2.429 0.000
H5 -0.278 -1.620 0.826
H6 -0.278 -1.620 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21252.57131.05913.11263.1126
C21.21251.35992.27151.98121.9812
N32.57131.35993.63021.01091.0109
H41.05912.27153.63024.13764.1376
H53.11261.98121.01094.13761.6523
H63.11261.98121.01094.13761.6523

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.565 C2 C1 H4 179.329
C2 N3 H5 112.541 C2 N3 H6 112.541
H5 N3 H6 109.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability