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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP3/6-311+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 MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.427780
Energy at 298.15K-132.430008
HF Energy-131.901271
Nuclear repulsion energy59.499536
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 MP3/6-311+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' 3621 3621 24.02      
2 A' 3519 3519 89.11      
3 A' 2281 2281 113.12      
4 A' 1671 1671 29.02      
5 A' 1082 1082 15.46      
6 A' 679 679 188.84      
7 A' 541 541 96.09      
8 A' 436 436 12.74      
9 A" 3711 3711 42.40      
10 A" 1227 1227 0.76      
11 A" 703 703 40.55      
12 A" 366 366 7.54      

Unscaled Zero Point Vibrational Energy (zpe) 9917.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9917.5 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 MP3/6-311+G(3df,2p)
ABC
10.20842 0.31194 0.30558

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.029 1.364 0.000
C2 0.000 0.164 0.000
N3 0.109 -1.192 0.000
H4 -0.063 2.423 0.000
H5 -0.263 -1.623 0.830
H6 -0.263 -1.623 -0.830

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20022.55891.06013.10893.1089
C21.20021.35972.26021.98781.9878
N32.55891.35973.61881.00651.0065
H41.06012.26023.61884.13554.1355
H53.10891.98781.00654.13551.6599
H63.10891.98781.00654.13551.6599

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.784 C2 C1 H4 179.503
C2 N3 H5 113.454 C2 N3 H6 113.454
H5 N3 H6 111.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability