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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-132.352348
Energy at 298.15K-132.354524
HF Energy-131.885207
Nuclear repulsion energy59.113418
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 QCISD/6-311G**
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' 3573 3409 11.90      
2 A' 3504 3343 72.59      
3 A' 2235 2133 72.12      
4 A' 1660 1583 27.88      
5 A' 1063 1014 8.69      
6 A' 756 721 217.66      
7 A' 525 501 85.45      
8 A' 392 374 7.81      
9 A" 3662 3494 20.95      
10 A" 1234 1177 0.43      
11 A" 684 653 35.80      
12 A" 346 330 4.41      

Unscaled Zero Point Vibrational Energy (zpe) 9817.0 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 9366.4 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 QCISD/6-311G**
ABC
9.93700 0.30780 0.30187

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.049 1.372 0.000
C2 0.000 0.163 0.000
N3 0.133 -1.200 0.000
H4 -0.104 2.435 0.000
H5 -0.266 -1.621 0.830
H6 -0.266 -1.621 -0.830

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21042.57901.06413.11393.1139
C21.21041.36962.27451.98541.9854
N32.57901.36963.64291.01201.0120
H41.06412.27453.64294.14324.1432
H53.11391.98541.01204.14321.6590
H63.11391.98541.01204.14321.6590

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.744 C2 C1 H4 179.289
C2 N3 H5 112.072 C2 N3 H6 112.072
H5 N3 H6 110.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability