return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H6O (Oxetane)

using model chemistry: CID/3-21G*

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 CID/3-21G*
 hartrees
Energy at 0K-191.209500
Energy at 298.15K-191.216792
HF Energy-190.837721
Nuclear repulsion energy125.594269
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 CID/3-21G*
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 3174 2953 9.78      
2 A1 3154 2935 11.68      
3 A1 1649 1534 0.24      
4 A1 1586 1476 3.11      
5 A1 1417 1319 0.01      
6 A1 1025 954 0.46      
7 A1 889 827 10.16      
8 A1 831 773 7.58      
9 A2 3200 2978 0.00      
10 A2 1308 1217 0.00      
11 A2 1176 1094 0.00      
12 A2 899 836 0.00      
13 B1 3233 3008 47.16      
14 B1 3197 2975 37.27      
15 B1 1254 1167 1.89      
16 B1 1144 1065 2.03      
17 B1 791 736 0.81      
18 B1 87 81 4.47      
19 B2 3146 2928 89.67      
20 B2 1621 1509 1.78      
21 B2 1355 1261 16.21      
22 B2 1332 1239 3.06      
23 B2 1020 949 52.12      
24 B2 929 865 5.74      

Unscaled Zero Point Vibrational Energy (zpe) 19708.2 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 18338.5 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 CID/3-21G*
ABC
0.38443 0.37957 0.21450

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.106
C2 0.000 0.000 -1.087
C3 0.000 1.071 0.055
C4 0.000 -1.071 0.055
H5 0.893 0.000 -1.709
H6 -0.893 0.000 -1.709
H7 0.895 1.688 0.108
H8 -0.895 1.688 0.108
H9 -0.895 -1.688 0.108
H10 0.895 -1.688 0.108

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.19211.50021.50022.95292.95292.15552.15552.15552.1555
C22.19211.56531.56531.08841.08842.25382.25382.25382.2538
C31.50021.56532.14182.24862.24861.08871.08872.90132.9013
C41.50021.56532.14182.24862.24862.90132.90131.08871.0887
H52.95291.08842.24862.24861.78542.48073.05783.05782.4807
H62.95291.08842.24862.24861.78543.05782.48072.48073.0578
H72.15552.25381.08872.90132.48073.05781.79033.82193.3766
H82.15552.25381.08872.90133.05782.48071.79033.37663.8219
H92.15552.25382.90131.08873.05782.48073.82193.37661.7903
H102.15552.25382.90131.08872.48073.05783.37663.82191.7903

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.281 O1 C3 H7 111.745
O1 C3 H8 111.745 O1 C4 C2 91.281
O1 C4 H9 111.745 O1 C4 H10 111.745
C2 C3 H7 115.070 C2 C3 H8 115.070
C2 C4 H9 115.070 C2 C4 H10 115.070
C3 O1 C4 91.099 C3 C2 C4 86.339
C3 C2 H5 114.660 C3 C2 H6 114.660
C4 C2 H5 114.660 C4 C2 H6 114.660
H5 C2 H6 110.210 H7 C3 H8 110.612
H9 C4 H10 110.612
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-191.209500
Energy at 298.15K-191.216793
HF Energy-190.837709
Nuclear repulsion energy125.592438
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 CID/3-21G*
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' 3233 3008 47.58      
2 A' 3197 2974 36.83      
3 A' 3174 2953 9.69      
4 A' 3154 2934 11.79      
5 A' 1649 1534 0.24      
6 A' 1586 1476 3.11      
7 A' 1417 1319 0.01      
8 A' 1254 1167 1.90      
9 A' 1144 1065 2.02      
10 A' 1025 954 0.44      
11 A' 889 827 10.16      
12 A' 831 773 7.58      
13 A' 791 736 0.81      
14 A' 88 82 4.47      
15 A" 3200 2978 0.00      
16 A" 3146 2928 89.63      
17 A" 1621 1509 1.78      
18 A" 1355 1261 16.34      
19 A" 1332 1239 2.99      
20 A" 1308 1217 0.00      
21 A" 1175 1094 0.00      
22 A" 1020 949 51.94      
23 A" 930 865 5.85      
24 A" 899 836 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19708.5 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 18338.8 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 CID/3-21G*
ABC
0.38447 0.37952 0.21450

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.001 -1.106 0.000
C2 -0.000 1.086 0.000
C3 -0.000 -0.055 1.071
C4 -0.000 -0.055 -1.071
H5 0.892 1.709 0.000
H6 -0.893 1.709 0.000
H7 0.895 -0.107 1.689
H8 -0.896 -0.109 1.688
H9 0.895 -0.107 -1.689
H10 -0.896 -0.109 -1.688

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.19231.50041.50042.95292.95352.15582.15562.15582.1556
C22.19231.56501.56501.08841.08842.25352.25362.25352.2536
C31.50041.56502.14162.24852.24851.08871.08882.90152.9008
C41.50041.56502.14162.24852.24852.90152.90081.08871.0888
H52.95291.08842.24852.24851.78522.48053.05792.48053.0579
H62.95351.08842.24852.24851.78523.05732.48053.05732.4805
H72.15582.25351.08872.90152.48053.05731.79033.37763.8218
H82.15562.25361.08882.90083.05792.48051.79033.82183.3754
H92.15582.25352.90151.08872.48053.05733.37763.82181.7903
H102.15562.25362.90081.08883.05792.48053.82183.37541.7903

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.289 O1 C3 H7 111.759
O1 C3 H8 111.741 O1 C4 C2 91.289
O1 C4 H9 111.759 O1 C4 H10 111.741
C2 C3 H7 115.061 C2 C3 H8 115.066
C2 C4 H9 115.061 C2 C4 H10 115.066
C3 O1 C4 91.074 C3 C2 C4 86.348
C3 C2 H5 114.667 C3 C2 H6 114.664
C4 C2 H5 114.667 C4 C2 H6 114.664
H5 C2 H6 110.189 H7 C3 H8 110.611
H9 C4 H10 110.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability