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All results from a given calculation for C3H6O (Oxetane)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
1 2 no CS 1A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-35.857000
Energy at 298.15K-35.864090
HF Energy-35.506896
Nuclear repulsion energy69.381487
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/CEP-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 A1 3093 2989 31.38      
2 A1 3075 2971 12.31      
3 A1 1555 1503 0.65      
4 A1 1522 1471 3.64      
5 A1 1362 1316 0.22      
6 A1 1002 968 0.37      
7 A1 825 797 15.79      
8 A1 761 735 11.76      
9 A2 3158 3051 0.00      
10 A2 1252 1210 0.00      
11 A2 1101 1064 0.00      
12 A2 864 835 0.00      
13 B1 3181 3074 129.37      
14 B1 3150 3044 32.42      
15 B1 1202 1161 2.60      
16 B1 1087 1050 0.39      
17 B1 793 766 2.26      
18 B1 40 39 9.19      
19 B2 3072 2969 170.90      
20 B2 1530 1478 0.16      
21 B2 1302 1258 2.29      
22 B2 1283 1240 13.47      
23 B2 971 939 10.95      
24 B2 905 875 41.99      

Unscaled Zero Point Vibrational Energy (zpe) 19042.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 18400.6 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 MP2/CEP-31G
ABC
0.37096 0.36570 0.20678

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.130
C2 0.000 0.000 -1.103
C3 0.000 1.091 0.046
C4 0.000 -1.091 0.046
H5 0.906 0.000 -1.741
H6 -0.906 0.000 -1.741
H7 0.912 1.715 0.127
H8 -0.912 1.715 0.127
H9 -0.912 -1.715 0.127
H10 0.912 -1.715 0.127

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.23281.53751.53753.00983.00982.18642.18642.18642.1864
C22.23281.58501.58501.10751.10752.29942.29942.29942.2994
C31.53751.58502.18232.28142.28141.10821.10822.95212.9521
C41.53751.58502.18232.28142.28142.95212.95211.10821.1082
H53.00981.10752.28142.28141.81142.53573.11993.11992.5357
H63.00981.10752.28142.28141.81143.11992.53572.53573.1199
H72.18642.29941.10822.95212.53573.11991.82423.88563.4308
H82.18642.29941.10822.95213.11992.53571.82423.43083.8856
H92.18642.29942.95211.10823.11992.53573.88563.43081.8242
H102.18642.29942.95211.10822.53573.11993.43083.88561.8242

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.287 O1 C3 H7 110.415
O1 C3 H8 110.415 O1 C4 C2 91.287
O1 C4 H9 110.415 O1 C4 H10 110.415
C2 C3 H7 116.123 C2 C3 H8 116.123
C2 C4 H9 116.123 C2 C4 H10 116.123
C3 O1 C4 90.420 C3 C2 C4 87.006
C3 C2 H5 114.677 C3 C2 H6 114.677
C4 C2 H5 114.677 C4 C2 H6 114.677
H5 C2 H6 109.718 H7 C3 H8 110.782
H9 C4 H10 110.782
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-35.857000
Energy at 298.15K-35.864091
HF Energy-35.506903
Nuclear repulsion energy69.383421
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/CEP-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' 3181 3074 130.65      
2 A' 3149 3043 31.24      
3 A' 3093 2989 31.01      
4 A' 3075 2971 12.72      
5 A' 1555 1503 0.66      
6 A' 1522 1471 3.63      
7 A' 1362 1316 0.22      
8 A' 1202 1161 2.61      
9 A' 1087 1050 0.39      
10 A' 1003 969 0.37      
11 A' 825 797 15.78      
12 A' 793 766 2.27      
13 A' 761 735 11.76      
14 A' 41 39 9.19      
15 A" 3158 3051 0.00      
16 A" 3072 2969 170.94      
17 A" 1530 1478 0.16      
18 A" 1302 1258 2.37      
19 A" 1283 1240 13.40      
20 A" 1253 1210 0.00      
21 A" 1101 1064 0.00      
22 A" 972 939 10.82      
23 A" 905 875 42.13      
24 A" 865 835 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19042.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 18401.2 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 MP2/CEP-31G
ABC
0.37102 0.36571 0.20679

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.002 -1.130 0.000
C2 0.001 1.103 0.000
C3 0.001 -0.046 1.091
C4 0.001 -0.046 -1.091
H5 0.906 1.741 0.000
H6 -0.905 1.741 0.000
H7 0.913 -0.127 1.714
H8 -0.911 -0.126 1.717
H9 0.913 -0.127 -1.714
H10 -0.911 -0.126 -1.717

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.23281.53751.53753.01103.00912.18652.18652.18652.1865
C22.23281.58481.58481.10761.10762.29902.29942.29902.2994
C31.53751.58482.18202.28162.28121.10821.10822.95112.9529
C41.53751.58482.18202.28162.28122.95112.95291.10821.1082
H53.01101.10762.28162.28161.81102.53573.11972.53573.1197
H63.00911.10762.28122.28121.81103.12002.53583.12002.5358
H72.18652.29901.10822.95112.53573.12001.82403.42833.8856
H82.18652.29941.10822.95293.11972.53581.82403.88563.4333
H92.18652.29902.95111.10822.53573.12003.42833.88561.8240
H102.18652.29942.95291.10823.11972.53583.88563.43331.8240

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.291 O1 C3 H7 110.420
O1 C3 H8 110.417 O1 C4 C2 91.291
O1 C4 H9 110.420 O1 C4 H10 110.417
C2 C3 H7 116.107 C2 C3 H8 116.144
C2 C4 H9 116.107 C2 C4 H10 116.144
C3 O1 C4 90.407 C3 C2 C4 87.011
C3 C2 H5 114.701 C3 C2 H6 114.676
C4 C2 H5 114.701 C4 C2 H6 114.676
H5 C2 H6 109.678 H7 C3 H8 110.769
H9 C4 H10 110.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability