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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-132.362490
Energy at 298.15K-132.364571
HF Energy-131.875152
Nuclear repulsion energy59.172110
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 MP2=FULL/6-311G*
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' 3597 3407 18.05      
2 A' 3510 3325 74.37      
3 A' 2212 2095 78.22      
4 A' 1720 1629 40.53      
5 A' 1074 1017 9.55      
6 A' 741 702 268.66      
7 A' 495 469 78.99      
8 A' 361 342 17.64      
9 A" 3697 3501 28.39      
10 A" 1250 1184 0.02      
11 A" 618 585 43.08      
12 A" 350 331 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 9812.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 9293.4 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 MP2=FULL/6-311G*
ABC
10.10882 0.30846 0.30223

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.046 1.374 0.000
C2 0.000 0.159 0.000
N3 0.054 -1.201 0.000
H4 0.029 2.437 0.000
H5 -0.340 -1.614 0.832
H6 -0.340 -1.614 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21592.57461.06313.12533.1253
C21.21591.36072.27821.98761.9876
N32.57461.36073.63771.00941.0094
H41.06312.27823.63774.15164.1516
H53.12531.98761.00944.15161.6648
H63.12531.98761.00944.15161.6648

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.577 C2 C1 H4 176.959
C2 N3 H5 113.158 C2 N3 H6 113.158
H5 N3 H6 111.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability