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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 no C2V 1A1
1 2 yes CS 1A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-36.139414
Energy at 298.15K 
HF Energy-35.604314
Nuclear repulsion energy71.154786
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 3140 2981 29.63      
2 A1 3096 2939 0.74      
3 A1 1573 1494 0.18      
4 A1 1524 1446 4.41      
5 A1 1399 1328 3.15      
6 A1 1060 1006 2.54      
7 A1 938 891 41.37      
8 A1 798 758 3.70      
9 A2 3163 3003 0.00      
10 A2 1258 1194 0.00      
11 A2 1168 1109 0.00      
12 A2 851 808 0.00      
13 B1 3224 3061 44.43      
14 B1 3160 3000 84.42      
15 B1 1203 1143 1.43      
16 B1 1146 1088 1.86      
17 B1 779 740 1.26      
18 B1 36i 34i 6.02      
19 B2 3090 2933 168.49      
20 B2 1544 1466 1.99      
21 B2 1326 1258 0.07      
22 B2 1273 1209 11.90      
23 B2 1055 1001 84.49      
24 B2 977 928 6.78      

Unscaled Zero Point Vibrational Energy (zpe) 19354.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 18374.9 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
0.39567 0.38249 0.21953

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 1.087
C2 0.000 0.000 -1.090
C3 0.000 1.047 0.062
C4 0.000 -1.047 0.062
H5 0.903 0.000 -1.720
H6 -0.903 0.000 -1.720
H7 0.905 1.678 0.137
H8 -0.905 1.678 0.137
H9 -0.905 -1.678 0.137
H10 0.905 -1.678 0.137

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.17671.46531.46532.94792.94792.12942.12942.12942.1294
C22.17671.55651.55651.10091.10092.26702.26702.26702.2670
C31.46531.55652.09422.25482.25481.10541.10542.87202.8720
C41.46531.55652.09422.25482.25482.87202.87201.10541.1054
H52.94791.10092.25482.25481.80632.50233.08723.08722.5023
H62.94791.10092.25482.25481.80633.08722.50232.50233.0872
H72.12942.26701.10542.87202.50233.08721.80973.81213.3552
H82.12942.26701.10542.87203.08722.50231.80973.35523.8121
H92.12942.26702.87201.10543.08722.50233.81213.35521.8097
H102.12942.26702.87201.10542.50233.08723.35523.81211.8097

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 92.111 O1 C3 H7 111.081
O1 C3 H8 111.081 O1 C4 C2 92.111
O1 C4 H9 111.081 O1 C4 H10 111.081
C2 C3 H7 115.743 C2 C3 H8 115.743
C2 C4 H9 115.743 C2 C4 H10 115.743
C3 O1 C4 91.219 C3 C2 C4 84.559
C3 C2 H5 115.027 C3 C2 H6 115.027
C4 C2 H5 115.027 C4 C2 H6 115.027
H5 C2 H6 110.250 H7 C3 H8 109.880
H9 C4 H10 109.880
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-36.139421
Energy at 298.15K-36.146614
HF Energy-35.604227
Nuclear repulsion energy71.180829
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' 3224 3061 44.99      
2 A' 3161 3001 80.01      
3 A' 3139 2980 30.13      
4 A' 3094 2938 6.05      
5 A' 1573 1493 0.18      
6 A' 1523 1446 4.39      
7 A' 1398 1328 3.18      
8 A' 1205 1144 1.31      
9 A' 1148 1090 2.13      
10 A' 1060 1007 2.82      
11 A' 938 890 40.62      
12 A' 823 781 4.07      
13 A' 753 715 1.77      
14 A' 50 48 6.00      
15 A" 3163 3003 2.55      
16 A" 3089 2932 163.40      
17 A" 1543 1465 1.98      
18 A" 1326 1259 0.12      
19 A" 1277 1212 9.11      
20 A" 1252 1188 2.73      
21 A" 1166 1107 0.16      
22 A" 1052 999 83.65      
23 A" 977 928 5.82      
24 A" 851 808 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 19392.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 18411.1 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
0.39586 0.38252 0.22010

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 0.110 -1.080 0.000
C2 -0.030 1.089 0.000
C3 -0.030 -0.063 1.046
C4 -0.030 -0.063 -1.046
H5 0.889 1.696 0.000
H6 -0.917 1.740 0.000
H7 0.823 -0.094 1.748
H8 -0.979 -0.190 1.599
H9 0.823 -0.094 -1.748
H10 -0.979 -0.190 -1.599

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.17411.46541.46542.88383.00202.12972.12982.12972.1298
C22.17411.55611.55611.10091.10102.27642.25722.27642.2572
C31.46541.55612.09122.24332.26601.10481.10622.92072.8130
C41.46541.55612.09122.24332.26602.92072.81301.10481.1062
H52.88381.10092.24332.24331.80682.50293.09892.50293.0989
H63.00201.10102.26602.26601.80683.07392.50763.07392.5076
H72.12972.27641.10482.92072.50293.07391.81023.49553.8024
H82.12982.25721.10622.81303.09892.50761.81023.80243.1989
H92.12972.27642.92071.10482.50293.07393.49553.80241.8102
H102.12982.25722.81301.10623.09892.50763.80243.19891.8102

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.985 O1 C3 H7 111.142
O1 C3 H8 111.061 O1 C4 C2 91.985
O1 C4 H9 111.142 O1 C4 H10 111.061
C2 C3 H7 116.604 C2 C3 H8 114.911
C2 C4 H9 116.604 C2 C4 H10 114.911
C3 O1 C4 91.047 C3 C2 C4 84.433
C3 C2 H5 114.098 C3 C2 H6 115.979
C4 C2 H5 114.098 C4 C2 H6 115.979
H5 C2 H6 110.283 H7 C3 H8 109.912
H9 C4 H10 109.912
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability