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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-132.305703
Energy at 298.15K-132.307853
HF Energy-131.859459
Nuclear repulsion energy58.634342
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/cc-pVDZ
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' 3538 3352 9.35      
2 A' 3494 3310 72.86      
3 A' 2238 2120 62.08      
4 A' 1649 1563 20.50      
5 A' 1059 1003 7.12      
6 A' 796 754 196.25      
7 A' 515 488 72.78      
8 A' 377 358 8.34      
9 A" 3627 3436 18.83      
10 A" 1239 1174 0.80      
11 A" 663 628 32.07      
12 A" 340 322 3.62      

Unscaled Zero Point Vibrational Energy (zpe) 9767.4 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 9252.7 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/cc-pVDZ
ABC
9.63861 0.30290 0.29753

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.073 1.382 0.000
C2 0.000 0.161 0.000
N3 0.161 -1.209 0.000
H4 -0.145 2.455 0.000
H5 -0.272 -1.624 0.827
H6 -0.272 -1.624 -0.827

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22302.60151.07553.12343.1234
C21.22301.37952.29851.98551.9855
N32.60151.37953.67671.02101.0210
H41.07552.29853.67674.16334.1633
H53.12341.98551.02104.16331.6531
H63.12341.98551.02104.16331.6531

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.716 C2 C1 H4 179.555
C2 N3 H5 110.721 C2 N3 H6 110.721
H5 N3 H6 108.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability