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All results from a given calculation for HCCOH (ethynol)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-152.116402
Energy at 298.15K 
HF Energy-151.674216
Nuclear repulsion energy57.577743
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
22.17149 0.31731 0.31283

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.134 0.000
C2 -0.474 1.255 0.000
O3 0.317 -1.163 0.000
H4 -0.972 2.190 0.000
H5 1.280 -1.217 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.21761.33472.27441.8607
C21.21762.54421.05923.0309
O31.33472.54423.59200.9648
H42.27441.05923.59204.0838
H51.86073.03090.96484.0838

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 174.796 C1 O3 H5 106.922
C2 C1 O3 170.838
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability