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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-132.226428
Energy at 298.15K-132.228555
HF Energy-131.844748
Nuclear repulsion energy59.357527
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 CID/6-31G*
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' 3635 3358 17.06      
2 A' 3586 3312 75.74      
3 A' 2350 2171 66.93      
4 A' 1737 1604 35.91      
5 A' 1104 1020 9.84      
6 A' 753 695 264.88      
7 A' 517 477 86.16      
8 A' 365 337 19.99      
9 A" 3729 3444 27.74      
10 A" 1271 1174 0.00      
11 A" 663 613 41.49      
12 A" 354 327 1.77      

Unscaled Zero Point Vibrational Energy (zpe) 10031.8 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 9266.4 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 CID/6-31G*
ABC
10.08862 0.31043 0.30427

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.044 1.366 0.000
C2 0.000 0.165 0.000
N3 0.127 -1.194 0.000
H4 -0.117 2.425 0.000
H5 -0.255 -1.626 0.829
H6 -0.255 -1.626 -0.829

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20132.56571.06183.11133.1113
C21.20131.36542.26281.98991.9899
N32.56571.36543.62751.00971.0097
H41.06182.26283.62754.13704.1370
H53.11131.98991.00974.13701.6579
H63.11131.98991.00974.13701.6579

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.751 C2 C1 H4 178.173
C2 N3 H5 112.966 C2 N3 H6 112.966
H5 N3 H6 110.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability