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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD/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 CCSD/6-311G**
 hartrees
Energy at 0K-132.351133
Energy at 298.15K-132.353322
HF Energy-131.885339
Nuclear repulsion energy59.139039
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 CCSD/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' 3575 3575 12.05      
2 A' 3506 3506 72.56      
3 A' 2244 2244 71.18      
4 A' 1660 1660 28.17      
5 A' 1065 1065 8.92      
6 A' 757 757 217.84      
7 A' 530 530 85.50      
8 A' 397 397 7.73      
9 A" 3664 3664 21.21      
10 A" 1235 1235 0.42      
11 A" 687 687 35.96      
12 A" 348 348 4.45      

Unscaled Zero Point Vibrational Energy (zpe) 9834.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9834.3 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 CCSD/6-311G**
ABC
9.93885 0.30810 0.30215

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.049 1.371 0.000
C2 0.000 0.163 0.000
N3 0.133 -1.200 0.000
H4 -0.106 2.434 0.000
H5 -0.265 -1.621 0.829
H6 -0.265 -1.621 -0.829

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20942.57761.06403.11243.1124
C21.20941.36932.27331.98501.9850
N32.57761.36933.64151.01191.0119
H41.06402.27333.64154.14164.1416
H53.11241.98501.01194.14161.6588
H63.11241.98501.01194.14161.6588

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.754 C2 C1 H4 179.291
C2 N3 H5 112.067 C2 N3 H6 112.067
H5 N3 H6 110.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability