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All results from a given calculation for C3H6O (Oxetane)

using model chemistry: MP2/6-31G

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 MP2/6-31G
 hartrees
Energy at 0K-192.208523
Energy at 298.15K 
HF Energy-191.812327
Nuclear repulsion energy124.812533
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 MP2/6-31G
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 3112 2977 11.43      
2 A1 3099 2965 15.04      
3 A1 1604 1534 0.25      
4 A1 1562 1495 2.21      
5 A1 1378 1319 0.11      
6 A1 1016 973 0.11      
7 A1 834 798 8.49      
8 A1 760 727 10.91      
9 A2 3160 3023 0.00      
10 A2 1279 1224 0.00      
11 A2 1128 1079 0.00      
12 A2 884 846 0.00      
13 B1 3181 3043 81.97      
14 B1 3151 3015 17.03      
15 B1 1228 1175 2.49      
16 B1 1108 1060 0.75      
17 B1 801 766 0.58      
18 B1 84i 81i 5.58      
19 B2 3095 2962 96.00      
20 B2 1581 1513 1.17      
21 B2 1322 1265 13.59      
22 B2 1317 1260 0.02      
23 B2 978 936 6.02      
24 B2 903 864 51.58      

Unscaled Zero Point Vibrational Energy (zpe) 19199.1 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 18369.7 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 MP2/6-31G
ABC
0.37993 0.37550 0.21189

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.120
C2 0.000 0.000 -1.082
C3 0.000 1.077 0.043
C4 0.000 -1.077 0.043
H5 0.891 0.000 -1.720
H6 -0.891 0.000 -1.720
H7 0.898 1.701 0.113
H8 -0.898 1.701 0.113
H9 -0.898 -1.701 0.113
H10 0.898 -1.701 0.113

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.20261.52351.52352.97682.97682.17142.17142.17142.1714
C22.20261.55791.55791.09591.09592.26452.26452.26452.2645
C31.52351.55792.15462.25022.25021.09561.09562.92062.9206
C41.52351.55792.15462.25022.25022.92062.92061.09561.0956
H52.97681.09592.25022.25021.78262.50043.07473.07472.5004
H62.97681.09592.25022.25021.78263.07472.50042.50043.0747
H72.17142.26451.09562.92062.50043.07471.79623.84703.4019
H82.17142.26451.09562.92063.07472.50041.79623.40193.8470
H92.17142.26452.92061.09563.07472.50043.84703.40191.7962
H102.17142.26452.92061.09562.50043.07473.40193.84701.7962

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.249 O1 C3 H7 110.951
O1 C3 H8 110.951 O1 C4 C2 91.249
O1 C4 H9 110.951 O1 C4 H10 110.951
C2 C3 H7 116.076 C2 C3 H8 116.076
C2 C4 H9 116.076 C2 C4 H10 116.076
C3 O1 C4 90.002 C3 C2 C4 87.499
C3 C2 H5 114.854 C3 C2 H6 114.854
C4 C2 H5 114.854 C4 C2 H6 114.854
H5 C2 H6 108.839 H7 C3 H8 110.112
H9 C4 H10 110.112
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-192.208684
Energy at 298.15K-192.215945
HF Energy-191.811574
Nuclear repulsion energy124.979194
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 MP2/6-31G
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' 3182 3045 78.75      
2 A' 3157 3020 6.84      
3 A' 3110 2975 18.23      
4 A' 3095 2961 23.90      
5 A' 1602 1532 0.45      
6 A' 1563 1495 2.16      
7 A' 1376 1317 0.12      
8 A' 1237 1183 2.56      
9 A' 1121 1073 1.05      
10 A' 1017 973 0.52      
11 A' 883 845 0.64      
12 A' 797 762 17.74      
13 A' 716 685 3.58      
14 A' 118 112 6.44      
15 A" 3166 3029 10.03      
16 A" 3090 2957 79.52      
17 A" 1579 1511 0.98      
18 A" 1332 1274 4.71      
19 A" 1321 1264 7.76      
20 A" 1265 1210 0.29      
21 A" 1121 1073 0.37      
22 A" 973 931 2.25      
23 A" 913 873 32.27      
24 A" 865 828 18.12      

Unscaled Zero Point Vibrational Energy (zpe) 19298.6 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 18464.9 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 MP2/6-31G
ABC
0.38030 0.37558 0.21416

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.237 -1.093 0.000
C2 -0.065 1.078 0.000
C3 -0.065 -0.051 1.072
C4 -0.065 -0.051 -1.072
H5 0.859 1.667 0.000
H6 -0.925 1.758 0.000
H7 0.718 -0.032 1.836
H8 -1.043 -0.239 1.532
H9 0.718 -0.032 -1.836
H10 -1.043 -0.239 -1.532

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.19191.52501.52502.82943.07852.17402.17112.17402.1711
C22.19191.55631.55631.09601.09592.28372.24482.28372.2448
C31.52501.55632.14302.22562.27121.09431.09713.01082.7876
C41.52501.55632.14302.22562.27123.01082.78761.09431.0971
H52.82941.09602.22562.22561.78582.50543.09842.50543.0984
H63.07851.09592.27122.27121.78583.04512.52033.04512.5203
H72.17402.28371.09433.01082.50543.04511.79873.67123.8060
H82.17112.24481.09712.78763.09842.52031.79873.80603.0645
H92.17402.28373.01081.09432.50543.04513.67123.80601.7987
H102.17112.24482.78761.09713.09842.52033.80603.06451.7987

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 90.683 O1 C3 H7 111.125
O1 C3 H8 110.731 O1 C4 C2 90.683
O1 C4 H9 111.125 O1 C4 H10 110.731
C2 C3 H7 117.934 C2 C3 H8 114.452
C2 C4 H9 117.934 C2 C4 H10 114.452
C3 O1 C4 89.275 C3 C2 C4 87.021
C3 C2 H5 112.947 C3 C2 H6 116.748
C4 C2 H5 112.947 C4 C2 H6 116.748
H5 C2 H6 109.123 H7 C3 H8 110.329
H9 C4 H10 110.329
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability