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All results from a given calculation for C4H6O2 (γ–Butyrolactone)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-305.964647
Energy at 298.15K 
HF Energy-304.815081
Nuclear repulsion energy241.429106
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/cc-pVTZ
ABC
0.24442 0.12024 0.08597

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.882 -0.003 0.004
C2 -0.028 1.201 0.178
C3 -1.395 0.664 -0.234
C4 -1.262 -0.813 0.138
O5 0.126 -1.131 -0.049
O6 2.075 -0.026 -0.074
H7 0.340 2.039 -0.407
H8 -0.003 1.484 1.232
H9 -1.533 0.766 -1.311
H10 -2.231 1.144 0.269
H11 -1.842 -1.481 -0.492
H12 -1.521 -0.991 1.183

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12
C11.51962.38502.29541.35921.19562.15222.12242.85533.32863.13862.8535
C21.51961.52542.36222.34852.44801.08561.09182.16092.20593.30662.8368
C32.38501.52541.52902.36013.54162.22022.18151.08991.08742.20652.1829
C42.29542.36221.52901.43563.43463.31552.83862.15952.18801.08631.0917
O51.35922.34852.36011.43562.24083.19702.91542.81783.29142.04692.0617
O61.19562.44803.54163.43462.24082.71722.88243.89504.47554.19913.9301
H72.15221.08562.22023.31553.19702.71721.76402.43792.80504.14193.8952
H82.12241.09182.18152.83862.91542.88241.76403.05292.45093.89192.9044
H92.85532.16091.08992.15952.81783.89502.43793.05291.76782.41123.0505
H103.32862.20591.08742.18803.29144.47552.80502.45091.76782.76092.4290
H113.13863.30662.20651.08632.04694.19914.14193.89192.41122.76091.7744
H122.85352.83682.18291.09172.06173.93013.89522.90443.05052.42901.7744

picture of γ–Butyrolactone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 103.113 C1 C2 H7 110.286
C1 C2 H8 107.597 C1 O5 C4 110.407
C2 C1 O5 109.203 C2 C1 O6 128.336
C2 C3 C4 101.313 C2 C3 H9 110.317
C2 C3 H10 114.131 C3 C2 H7 115.454
C3 C2 H8 111.857 C3 C4 O5 105.477
C3 C4 H11 113.989 C3 C4 H12 111.718
C4 C3 H9 109.959 C4 C3 H10 112.393
O5 C1 O6 122.460 O5 C4 H11 107.713
O5 C4 H12 108.569 H7 C2 H8 108.213
H9 C3 H10 108.565 H11 C4 H12 109.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability