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All results from a given calculation for C3H6O (Oxetane)

using model chemistry: QCISD/aug-cc-pVTZ

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 QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-192.771514
Energy at 298.15K 
HF Energy-191.982388
Nuclear repulsion energy128.250840
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 QCISD/aug-cc-pVTZ
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 3107 2990 23.69      
2 A1 3063 2948 0.27      
3 A1 1567 1508 0.01      
4 A1 1515 1458 3.28      
5 A1 1395 1342 2.20      
6 A1 1063 1024 7.07      
7 A1 948 912 32.72      
8 A1 821 791 5.53      
9 A2 3104 2988 0.00      
10 A2 1249 1202 0.00      
11 A2 1180 1136 0.00      
12 A2 841 809 0.00      
13 B1 3164 3045 31.53      
14 B1 3102 2986 54.04      
15 B1 1215 1169 0.03      
16 B1 1164 1121 2.81      
17 B1 768 739 0.11      
18 B1 55i 53i 4.60      
19 B2 3056 2941 133.24      
20 B2 1539 1481 0.90      
21 B2 1333 1282 0.19      
22 B2 1276 1228 6.78      
23 B2 1062 1022 92.65      
24 B2 959 923 4.54      

Unscaled Zero Point Vibrational Energy (zpe) 19216.6 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 18494.0 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 QCISD/aug-cc-pVTZ
ABC
0.40375 0.39401 0.22493

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.069
C2 0.000 0.000 -1.075
C3 0.000 1.037 0.063
C4 0.000 -1.037 0.063
H5 0.889 0.000 -1.701
H6 -0.889 0.000 -1.701
H7 0.891 1.663 0.135
H8 -0.891 1.663 0.135
H9 -0.891 -1.663 0.135
H10 0.891 -1.663 0.135

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.14341.44431.44432.90852.90852.10522.10522.10522.1052
C22.14341.53981.53981.08711.08712.24082.24082.24082.2408
C31.44431.53982.07422.23112.23111.09131.09132.84402.8440
C41.44431.53982.07422.23112.23112.84402.84401.09131.0913
H52.90851.08712.23112.23111.77762.47643.04983.04982.4764
H62.90851.08712.23112.23111.77763.04982.47642.47643.0498
H72.10522.24081.09132.84402.47643.04981.78273.77303.3254
H82.10522.24081.09132.84403.04982.47641.78273.32543.7730
H92.10522.24082.84401.09133.04982.47643.77303.32541.7827
H102.10522.24082.84401.09132.47643.04983.32543.77301.7827

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.767 O1 C3 H7 111.487
O1 C3 H8 111.487 O1 C4 C2 91.767
O1 C4 H9 111.487 O1 C4 H10 111.487
C2 C3 H7 115.737 C2 C3 H8 115.737
C2 C4 H9 115.737 C2 C4 H10 115.737
C3 O1 C4 91.786 C3 C2 C4 84.680
C3 C2 H5 115.189 C3 C2 H6 115.189
C4 C2 H5 115.189 C4 C2 H6 115.189
H5 C2 H6 109.689 H7 C3 H8 109.528
H9 C4 H10 109.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-192.771539
Energy at 298.15K-192.778819
HF Energy-191.982255
Nuclear repulsion energy128.331586
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 QCISD/aug-cc-pVTZ
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' 3163 3044 32.09      
2 A' 3110 2993 35.75      
3 A' 3103 2986 31.03      
4 A' 3059 2944 13.90      
5 A' 1566 1507 0.05      
6 A' 1514 1457 3.25      
7 A' 1394 1341 2.14      
8 A' 1218 1172 0.06      
9 A' 1168 1124 3.27      
10 A' 1065 1025 7.60      
11 A' 946 910 31.16      
12 A' 847 815 6.87      
13 A' 742 714 0.62      
14 A' 77 74 4.64      
15 A" 3108 2991 10.88      
16 A" 3052 2937 118.83      
17 A" 1538 1480 0.86      
18 A" 1332 1282 0.21      
19 A" 1281 1233 5.37      
20 A" 1242 1196 1.69      
21 A" 1177 1133 0.30      
22 A" 1057 1017 90.29      
23 A" 959 923 3.48      
24 A" 840 809 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 19278.1 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 18553.2 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 QCISD/aug-cc-pVTZ
ABC
0.40413 0.39401 0.22594

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.140 -1.059 0.000
C2 -0.038 1.073 0.000
C3 -0.038 -0.066 1.034
C4 -0.038 -0.066 -1.034
H5 0.872 1.669 0.000
H6 -0.906 1.727 0.000
H7 0.783 -0.080 1.752
H8 -0.986 -0.206 1.559
H9 0.783 -0.080 -1.752
H10 -0.986 -0.206 -1.559

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.13941.44451.44452.82412.97592.10722.10402.10722.1040
C22.13941.53911.53911.08741.08712.25232.22872.25232.2287
C31.44451.53912.06892.21572.24511.09031.09252.90492.7651
C41.44451.53912.06892.21572.24512.90492.76511.09031.0925
H52.82411.08742.21572.21571.77912.47713.06572.47713.0657
H62.97591.08712.24512.24511.77913.03112.48493.03112.4849
H72.10722.25231.09032.90492.47713.03111.78363.50403.7562
H82.10402.22871.09252.76513.06572.48491.78363.75623.1186
H92.10722.25232.90491.09032.47713.03113.50403.75621.7836
H102.10402.22872.76511.09253.06572.48493.75623.11861.7836

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.566 O1 C3 H7 111.709
O1 C3 H8 111.301 O1 C4 C2 91.566
O1 C4 H9 111.709 O1 C4 H10 111.301
C2 C3 H7 116.837 C2 C3 H8 114.688
C2 C4 H9 116.837 C2 C4 H10 114.688
C3 O1 C4 91.471 C3 C2 C4 84.461
C3 C2 H5 113.939 C3 C2 H6 116.441
C4 C2 H5 113.939 C4 C2 H6 116.441
H5 C2 H6 109.803 H7 C3 H8 109.596
H9 C4 H10 109.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability