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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-132.429077
Energy at 298.15K-132.431322
HF Energy-131.902147
Nuclear repulsion energy59.425667
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 CCD/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' 3587 3349 18.66      
2 A' 3511 3278 82.82      
3 A' 2272 2122 86.99      
4 A' 1670 1559 26.46      
5 A' 1074 1003 12.02      
6 A' 719 672 199.34      
7 A' 539 503 89.20      
8 A' 434 405 10.81      
9 A" 3677 3433 32.44      
10 A" 1238 1156 0.50      
11 A" 691 645 39.24      
12 A" 370 345 5.90      

Unscaled Zero Point Vibrational Energy (zpe) 9890.4 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 9234.7 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 CCD/cc-pVTZ
ABC
10.10262 0.31106 0.30496

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.041 1.365 0.000
C2 0.000 0.164 0.000
N3 0.123 -1.194 0.000
H4 -0.087 2.424 0.000
H5 -0.265 -1.619 0.826
H6 -0.265 -1.619 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20202.56401.05963.10413.1041
C21.20201.36312.26151.98251.9825
N32.56401.36313.62351.00731.0073
H41.05962.26153.62354.12984.1298
H53.10411.98251.00734.12981.6528
H63.10411.98251.00734.12981.6528

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.766 C2 C1 H4 179.502
C2 N3 H5 112.653 C2 N3 H6 112.653
H5 N3 H6 110.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability