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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD=FULL/aug-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 CCSD=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-132.495428
Energy at 298.15K-132.497649
HF Energy-131.904626
Nuclear repulsion energy59.598887
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 CCSD=FULL/aug-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' 3596 3420 17.92      
2 A' 3515 3342 84.43      
3 A' 2263 2152 101.97      
4 A' 1675 1593 26.01      
5 A' 1081 1028 15.21      
6 A' 679 646 177.17      
7 A' 526 500 97.07      
8 A' 436 415 13.10      
9 A" 3675 3495 38.38      
10 A" 1226 1166 0.85      
11 A" 699 664 38.16      
12 A" 368 350 6.44      

Unscaled Zero Point Vibrational Energy (zpe) 9868.0 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 9384.4 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 CCSD=FULL/aug-cc-pVTZ
ABC
10.20426 0.31303 0.30666

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.084 1.360 0.000
C2 0.000 0.162 0.000
N3 0.153 -1.185 0.000
H4 -0.151 2.412 0.000
H5 -0.206 -1.627 0.829
H6 -0.206 -1.627 -0.829

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20042.55551.05413.10233.1023
C21.20041.35572.25451.98301.9830
N32.55551.35573.60931.00581.0058
H41.05412.25453.60934.12364.1236
H53.10231.98301.00584.12361.6581
H63.10231.98301.00584.12361.6581

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.564 C2 C1 H4 179.599
C2 N3 H5 113.392 C2 N3 H6 113.392
H5 N3 H6 111.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability