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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP3/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 MP3/cc-pVDZ
 hartrees
Energy at 0K-132.299482
Energy at 298.15K-132.301681
HF Energy-131.860232
Nuclear repulsion energy58.782665
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 MP3/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' 3574 3388 12.49      
2 A' 3526 3343 79.93      
3 A' 2283 2164 71.35      
4 A' 1654 1568 22.07      
5 A' 1071 1016 8.85      
6 A' 792 751 200.08      
7 A' 531 504 75.29      
8 A' 393 372 8.63      
9 A" 3661 3470 22.25      
10 A" 1243 1179 0.74      
11 A" 677 642 34.03      
12 A" 352 334 3.90      

Unscaled Zero Point Vibrational Energy (zpe) 9879.6 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 9364.9 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 MP3/cc-pVDZ
ABC
9.68247 0.30448 0.29904

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.066 1.378 0.000
C2 0.000 0.162 0.000
N3 0.154 -1.207 0.000
H4 -0.133 2.449 0.000
H5 -0.277 -1.619 0.826
H6 -0.277 -1.619 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21842.59441.07333.11633.1163
C21.21841.37712.29171.98241.9824
N32.59441.37713.66751.01891.0189
H41.07332.29173.66754.15414.1541
H53.11631.98241.01894.15411.6518
H63.11631.98241.01894.15411.6518

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.651 C2 C1 H4 179.479
C2 N3 H5 110.778 C2 N3 H6 110.778
H5 N3 H6 108.307
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability