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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.371206
Energy at 298.15K-132.373537
HF Energy-131.901974
Nuclear repulsion energy59.784777
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 CISD/6-311+G(3df,2p)
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' 3681 3394 26.62      
2 A' 3565 3286 93.84      
3 A' 2318 2137 115.32      
4 A' 1703 1570 29.73      
5 A' 1103 1017 16.27      
6 A' 680 627 190.24      
7 A' 580 534 90.31      
8 A' 467 431 27.53      
9 A" 3774 3479 46.73      
10 A" 1249 1151 0.62      
11 A" 752 693 39.87      
12 A" 389 358 8.66      

Unscaled Zero Point Vibrational Energy (zpe) 10130.1 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 9337.9 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 CISD/6-311+G(3df,2p)
ABC
10.35232 0.31494 0.30840

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.053 1.356 0.000
C2 0.000 0.164 0.000
N3 0.126 -1.183 0.000
H4 -0.107 2.411 0.000
H5 -0.227 -1.624 0.828
H6 -0.227 -1.624 -0.828

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19352.54601.05623.09793.0979
C21.19351.35322.24961.98331.9833
N32.54601.35323.60201.00181.0018
H41.05622.24963.60204.12084.1208
H53.09791.98331.00184.12081.6557
H63.09791.98331.00184.12081.6557

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.228 C2 C1 H4 179.657
C2 N3 H5 113.897 C2 N3 H6 113.897
H5 N3 H6 111.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability