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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP4/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.459137
Energy at 298.15K-132.461219
HF Energy-131.899276
Nuclear repulsion energy59.105081
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 MP4/6-311+G(3df,2p)
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' 3545 3346        
2 A' 3468 3273        
3 A' 2164 2042        
4 A' 1644 1552        
5 A' 1053 994        
6 A' 686 647        
7 A' 495 467        
8 A' 382 360        
9 A" 3641 3436        
10 A" 1207 1139        
11 A" 646 609        
12 A" 337 318        

Unscaled Zero Point Vibrational Energy (zpe) 9632.8 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 9091.4 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 MP4/6-311+G(3df,2p)
ABC
10.07718 0.30772 0.30157

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 1.375 0.000
C2 0.000 0.160 0.000
N3 0.100 -1.200 0.000
H4 -0.035 2.439 0.000
H5 -0.286 -1.627 0.832
H6 -0.286 -1.627 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21502.57781.06353.12743.1274
C21.21501.36402.27851.99241.9924
N32.57781.36403.64101.01181.0118
H41.06352.27853.64104.15774.1577
H53.12741.99241.01184.15771.6636
H63.12741.99241.01184.15771.6636

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.527 C2 C1 H4 179.679
C2 N3 H5 113.160 C2 N3 H6 113.160
H5 N3 H6 110.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability