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: QCISD/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-192.606953
Energy at 298.15K 
HF Energy-191.933159
Nuclear repulsion energy127.031919
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-pVDZ
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 3095 2998 26.45      
2 A1 3055 2959 0.66      
3 A1 1540 1492 0.00      
4 A1 1490 1443 2.49      
5 A1 1368 1325 2.58      
6 A1 1048 1016 4.57      
7 A1 929 900 32.59      
8 A1 813 788 5.83      
9 A2 3102 3005 0.00      
10 A2 1230 1192 0.00      
11 A2 1153 1117 0.00      
12 A2 829 803 0.00      
13 B1 3156 3057 40.41      
14 B1 3099 3002 56.67      
15 B1 1194 1157 0.18      
16 B1 1139 1104 2.36      
17 B1 758 734 0.02      
18 B1 66i 64i 4.30      
19 B2 3048 2953 141.47      
20 B2 1512 1465 1.63      
21 B2 1304 1263 0.40      
22 B2 1255 1216 4.63      
23 B2 1032 999 87.15      
24 B2 952 922 9.05      

Unscaled Zero Point Vibrational Energy (zpe) 19016.9 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 18421.7 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 QCISD/aug-cc-pVDZ
ABC
0.39571 0.38724 0.22092

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.079
C2 0.000 0.000 -1.082
C3 0.000 1.047 0.062
C4 0.000 -1.047 0.062
H5 0.899 0.000 -1.715
H6 -0.899 0.000 -1.715
H7 0.902 1.679 0.136
H8 -0.902 1.679 0.136
H9 -0.902 -1.679 0.136
H10 0.902 -1.679 0.136

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.16081.45991.45992.93502.93502.12612.12612.12612.1261
C22.16081.55091.55091.09981.09982.26182.26182.26182.2618
C31.45991.55092.09482.25012.25011.10371.10372.87242.8724
C41.45991.55092.09482.25012.25012.87242.87241.10371.1037
H52.93501.09982.25012.25011.79892.49893.08073.08072.4989
H62.93501.09982.25012.25011.79893.08072.49892.49893.0807
H72.12612.26181.10372.87242.49893.08071.80463.81153.3572
H82.12612.26181.10372.87243.08072.49891.80463.35723.8115
H92.12612.26182.87241.10373.08072.49893.81153.35721.8046
H102.12612.26182.87241.10372.49893.08073.35723.81151.8046

picture of Oxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.677 O1 C3 H7 111.307
O1 C3 H8 111.307 O1 C4 C2 91.677
O1 C4 H9 111.307 O1 C4 H10 111.307
C2 C3 H7 115.846 C2 C3 H8 115.846
C2 C4 H9 115.846 C2 C4 H10 115.846
C3 O1 C4 91.687 C3 C2 C4 84.960
C3 C2 H5 115.114 C3 C2 H6 115.114
C4 C2 H5 115.114 C4 C2 H6 115.114
H5 C2 H6 109.733 H7 C3 H8 109.677
H9 C4 H10 109.677
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-192.607008
Energy at 298.15K-192.614274
HF Energy-191.932952
Nuclear repulsion energy127.147481
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-pVDZ
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' 3155 3056 41.26      
2 A' 3106 3009 41.40      
3 A' 3092 2995 27.87      
4 A' 3050 2954 18.47      
5 A' 1539 1491 0.04      
6 A' 1489 1442 2.48      
7 A' 1367 1324 2.46      
8 A' 1198 1161 0.15      
9 A' 1146 1110 3.04      
10 A' 1050 1017 5.37      
11 A' 927 898 29.77      
12 A' 843 817 8.73      
13 A' 727 704 0.49      
14 A' 91 88 4.46      
15 A" 3107 3010 14.17      
16 A" 3043 2948 122.40      
17 A" 1511 1463 1.54      
18 A" 1304 1263 0.43      
19 A" 1260 1220 3.56      
20 A" 1223 1184 1.44      
21 A" 1150 1114 0.33      
22 A" 1025 993 84.62      
23 A" 952 922 6.86      
24 A" 827 802 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 19090.3 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 18492.8 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 QCISD/aug-cc-pVDZ
ABC
0.39626 0.38724 0.22233

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.169 -1.064 0.000
C2 -0.046 1.080 0.000
C3 -0.046 -0.066 1.044
C4 -0.046 -0.066 -1.044
H5 0.878 1.676 0.000
H6 -0.921 1.746 0.000
H7 0.771 -0.072 1.784
H8 -1.013 -0.225 1.553
H9 0.771 -0.072 -1.784
H10 -1.013 -0.225 -1.553

Atom - Atom Distances (Å)
  O1 C2 C3 C4 H5 H6 H7 H8 H9 H10
O12.15511.46011.46012.83113.01452.12832.12482.12832.1248
C22.15511.55001.55001.10011.09992.27542.24762.27542.2476
C31.46011.55002.08722.23152.26701.10241.10512.94332.7757
C41.46011.55002.08722.23152.26702.94332.77571.10241.1051
H52.83111.10012.23152.23151.80092.50043.09972.50043.0997
H63.01451.09992.26702.26701.80093.05812.51143.05812.5114
H72.12832.27541.10242.94332.50043.05811.80573.56833.7874
H82.12482.24761.10512.77573.09972.51141.80573.78743.1061
H92.12832.27542.94331.10242.50043.05813.56833.78741.8057
H102.12482.24762.77571.10513.09972.51143.78743.10611.8057

picture of Oxetane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C2 91.392 O1 C3 H7 111.550
O1 C3 H8 111.095 O1 C4 C2 91.392
O1 C4 H9 111.550 O1 C4 H10 111.095
C2 C3 H7 117.151 C2 C3 H8 114.639
C2 C4 H9 117.151 C2 C4 H10 114.639
C3 O1 C4 91.244 C3 C2 C4 84.644
C3 C2 H5 113.635 C3 C2 H6 116.603
C4 C2 H5 113.635 C4 C2 H6 116.603
H5 C2 H6 109.888 H7 C3 H8 109.766
H9 C4 H10 109.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability