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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP3=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-132.094381
Energy at 298.15K-132.096053
HF Energy-131.797587
Nuclear repulsion energy58.869763
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=FULL/6-31G
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' 3685 3685 39.99      
2 A' 3506 3506 59.98      
3 A' 2276 2276 93.82      
4 A' 1751 1751 53.91      
5 A' 1102 1102 20.15      
6 A' 521 521 93.32      
7 A' 384 384 22.34      
8 A' 203 203 491.74      
9 A" 3803 3803 41.42      
10 A" 1217 1217 7.61      
11 A" 671 671 46.90      
12 A" 334 334 7.80      

Unscaled Zero Point Vibrational Energy (zpe) 9726.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9726.9 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=FULL/6-31G
ABC
11.03850 0.30442 0.29658

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.274 1.361 0.000
C2 0.000 0.170 0.000
N3 -0.193 -1.179 0.000
H4 0.366 2.424 0.000
H5 -0.329 -1.678 0.861
H6 -0.329 -1.678 -0.861

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22172.58211.06733.21573.2157
C21.22171.36272.28342.06562.0656
N32.58211.36273.64591.00491.0049
H41.06732.28343.64594.24884.2488
H53.21572.06561.00494.24881.7228
H63.21572.06561.00494.24881.7228

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.190 C2 C1 H4 171.946
C2 N3 H5 120.740 C2 N3 H6 120.740
H5 N3 H6 118.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability