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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP4=FULL/cc-pVTZ

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=FULL/cc-pVTZ
 hartrees
Energy at 0K-132.507688
Energy at 298.15K-132.509814
HF Energy-131.901275
Nuclear repulsion energy59.322795
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=FULL/cc-pVTZ
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' 3555 3423        
2 A' 3500 3370        
3 A' 2193 2112        
4 A' 1654 1593        
5 A' 1065 1025        
6 A' 705 679        
7 A' 492 473        
8 A' 394 380        
9 A" 3645 3510        
10 A" 1218 1172        
11 A" 639 615        
12 A" 359 345        

Unscaled Zero Point Vibrational Energy (zpe) 9709.3 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 9349.1 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=FULL/cc-pVTZ
ABC
10.08776 0.30998 0.30389

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 1.370 0.000
C2 0.000 0.160 0.000
N3 0.119 -1.195 0.000
H4 -0.073 2.425 0.000
H5 -0.270 -1.620 0.828
H6 -0.270 -1.620 -0.828

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21072.56951.05603.11163.1116
C21.21071.35992.26671.98181.9818
N32.56951.35993.62531.00871.0087
H41.05602.26673.62534.13444.1344
H53.11161.98181.00874.13441.6552
H63.11161.98181.00874.13441.6552

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.718 C2 C1 H4 179.781
C2 N3 H5 112.743 C2 N3 H6 112.743
H5 N3 H6 110.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability