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All results from a given calculation for C3H6O (Oxetane)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-192.526611
Energy at 298.15K 
HF Energy-191.906783
Nuclear repulsion energy127.573121
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 CCSD(T)/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 3096 2978        
2 A1 3049 2934        
3 A1 1590 1530        
4 A1 1536 1478        
5 A1 1402 1348        
6 A1 1063 1023        
7 A1 942 906        
8 A1 815 784        
9 A2 3089 2972        
10 A2 1252 1205        
11 A2 1174 1129        
12 A2 857 824        
13 B1 3151 3031        
14 B1 3088 2971        
15 B1 1215 1169        
16 B1 1160 1116        
17 B1 782 752        
18 B1 74i 71i        
19 B2 3041 2925        
20 B2 1561 1502        
21 B2 1327 1276        
22 B2 1285 1236        
23 B2 1055 1015        
24 B2 967 931        

Unscaled Zero Point Vibrational Energy (zpe) 19210.3 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 18482.2 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 CCSD(T)/6-31G*
ABC
0.40033 0.38958 0.22270

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.078
C2 0.000 0.000 -1.077
C3 0.000 1.040 0.062
C4 0.000 -1.040 0.062
H5 0.893 0.000 -1.712
H6 -0.893 0.000 -1.712
H7 0.896 1.675 0.131
H8 -0.896 1.675 0.131
H9 -0.896 -1.675 0.131
H10 0.896 -1.675 0.131

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.15491.45361.45362.92942.92942.12212.12212.12212.1221
C22.15491.54281.54281.09581.09582.25082.25082.25082.2508
C31.45361.54282.08022.24242.24241.09991.09992.85942.8594
C41.45361.54282.08022.24242.24242.85942.85941.09991.0999
H52.92941.09582.24242.24241.78602.49023.06613.06612.4902
H62.92941.09582.24242.24241.78603.06612.49022.49023.0661
H72.12212.25081.09992.85942.49023.06611.79183.79823.3490
H82.12212.25081.09992.85943.06612.49021.79183.34903.7982
H92.12212.25082.85941.09993.06612.49023.79823.34901.7918
H102.12212.25082.85941.09992.49023.06613.34903.79821.7918

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.922 O1 C3 H7 111.664
O1 C3 H8 111.664 O1 C4 C2 91.922
O1 C4 H9 111.664 O1 C4 H10 111.664
C2 C3 H7 115.779 C2 C3 H8 115.779
C2 C4 H9 115.779 C2 C4 H10 115.779
C3 O1 C4 91.375 C3 C2 C4 84.780
C3 C2 H5 115.344 C3 C2 H6 115.344
C4 C2 H5 115.344 C4 C2 H6 115.344
H5 C2 H6 109.162 H7 C3 H8 109.077
H9 C4 H10 109.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-192.526678
Energy at 298.15K-192.533962
HF Energy-191.906504
Nuclear repulsion energy127.713989
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 CCSD(T)/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' 3151 3031        
2 A' 3098 2980        
3 A' 3090 2973        
4 A' 3043 2927        
5 A' 1589 1529        
6 A' 1534 1476        
7 A' 1400 1347        
8 A' 1219 1173        
9 A' 1168 1124        
10 A' 1065 1025        
11 A' 940 904        
12 A' 857 825        
13 A' 738 711        
14 A' 93 90        
15 A" 3094 2977        
16 A" 3035 2920        
17 A" 1560 1501        
18 A" 1327 1277        
19 A" 1288 1240        
20 A" 1245 1198        
21 A" 1169 1125        
22 A" 1047 1007        
23 A" 969 932        
24 A" 855 823        

Unscaled Zero Point Vibrational Energy (zpe) 19287.4 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 18556.4 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 CCSD(T)/6-31G*
ABC
0.40085 0.38975 0.22441

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.182 -1.060 0.000
C2 0.049 1.075 0.000
C3 0.049 -0.067 1.036
C4 0.049 -0.067 -1.036
H5 0.917 1.744 0.000
H6 -0.871 1.670 0.000
H7 1.016 -0.224 1.539
H8 -0.754 -0.066 1.786
H9 1.016 -0.224 -1.539
H10 -0.754 -0.066 -1.786

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.14761.45391.45393.01222.81642.12202.12312.12202.1231
C22.14761.54151.54151.09601.09602.23422.26612.23422.2661
C31.45391.54152.07182.25962.22191.10141.09882.75522.9341
C41.45391.54152.07182.25962.22192.75522.93411.10141.0988
H53.01221.09602.25962.25961.78922.50093.04242.50093.0424
H62.81641.09602.22192.22191.78923.08532.49363.08532.4936
H72.12202.23421.10142.75522.50093.08531.79373.07853.7704
H82.12312.26611.09882.93413.04242.49361.79373.77043.5726
H92.12202.23422.75521.10142.50093.08533.07853.77041.7937
H102.12312.26612.93411.09883.04242.49363.77043.57261.7937

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.565 O1 C3 H7 111.544
O1 C3 H8 111.802 O1 C4 C2 91.565
O1 C4 H9 111.544 O1 C4 H10 111.802
C2 C3 H7 114.396 C2 C3 H8 117.268
C2 C4 H9 114.396 C2 C4 H10 117.268
C3 O1 C4 90.880 C3 C2 C4 84.447
C3 C2 H5 116.900 C3 C2 H6 113.727
C4 C2 H5 116.900 C4 C2 H6 113.727
H5 C2 H6 109.427 H7 C3 H8 109.227
H9 C4 H10 109.227
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability