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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCD/aug-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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-132.326373
Energy at 298.15K-132.328391
HF Energy-131.868372
Nuclear repulsion energy58.712776
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/aug-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' 3551 3425 14.19      
2 A' 3484 3360 78.42      
3 A' 2241 2162 94.06      
4 A' 1647 1589 24.09      
5 A' 1058 1021 12.32      
6 A' 703 678 177.96      
7 A' 489 472 90.35      
8 A' 350 338 8.31      
9 A" 3646 3516 30.51      
10 A" 1220 1177 1.27      
11 A" 614 592 43.70      
12 A" 317 306 3.59      

Unscaled Zero Point Vibrational Energy (zpe) 9660.4 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 9317.5 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/aug-cc-pVDZ
ABC
9.91861 0.30349 0.29760

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.024 1.384 0.000
C2 0.000 0.162 0.000
N3 0.111 -1.209 0.000
H4 -0.056 2.457 0.000
H5 -0.288 -1.633 0.833
H6 -0.288 -1.633 -0.833

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22182.59621.07373.14113.1411
C21.22181.37562.29552.00032.0003
N32.59621.37563.66981.01661.0166
H41.07372.29553.66984.18074.1807
H53.14112.00031.01664.18071.6663
H63.14112.00031.01664.18071.6663

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.492 C2 C1 H4 179.366
C2 N3 H5 112.604 C2 N3 H6 112.604
H5 N3 H6 110.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability