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 C3H6O2 (1,3-Dioxolane)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-265.819807
Energy at 298.15K-265.827968
HF Energy-265.306918
Nuclear repulsion energy188.971636
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=FULL/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 3189 3023 8.00      
2 A 3097 2936 2.07      
3 A 3092 2931 84.22      
4 A 1643 1557 7.95      
5 A 1601 1517 2.05      
6 A 1411 1338 9.62      
7 A 1265 1199 4.08      
8 A 1201 1138 12.16      
9 A 1161 1101 0.03      
10 A 1075 1019 129.81      
11 A 933 885 8.34      
12 A 910 863 1.51      
13 A 683 648 0.14      
14 A 257 243 1.00      
15 A 3198 3031 34.22      
16 A 3151 2988 58.30      
17 A 3100 2939 52.38      
18 A 1597 1514 0.94      
19 A 1440 1365 0.60      
20 A 1368 1297 3.44      
21 A 1229 1165 1.29      
22 A 1141 1082 15.99      
23 A 1043 989 18.80      
24 A 932 884 11.26      
25 A 852 807 37.63      
26 A 622 589 6.71      
27 A 61 58 25.75      

Unscaled Zero Point Vibrational Energy (zpe) 20624.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 19552.0 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 MP2=FULL/3-21G*
ABC
0.24439 0.23989 0.13528

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.249
C2 -0.323 0.698 -0.978
C3 0.323 -0.698 -0.978
O4 0.000 1.195 0.384
O5 0.000 -1.195 0.384
H6 0.902 0.051 1.863
H7 -0.902 -0.051 1.863
H8 -1.405 0.623 -1.126
H9 1.405 -0.623 -1.126
H10 -0.120 -1.395 -1.689
H11 0.120 1.395 -1.689

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C12.35622.35621.47531.47531.09251.09252.82912.82913.25503.2550
C22.35621.53861.48562.35513.16082.99471.09512.17972.22011.0897
C32.35621.53862.35511.48562.99473.16082.17971.09511.08972.2201
O41.47531.48562.35512.39072.07612.13392.14102.74973.32032.0868
O51.47532.35511.48562.39072.13392.07612.74972.14102.08683.3203
H61.09253.16082.99472.07612.13391.80773.81913.10503.96933.8776
H71.09252.99473.16082.13392.07611.80773.10503.81913.87763.9693
H82.82911.09512.17972.14102.74973.81913.10503.07342.45711.8001
H92.82912.17971.09512.74972.14103.10503.81913.07341.80012.4571
H103.25502.22011.08973.32032.08683.96933.87762.45711.80012.8002
H113.25501.08972.22012.08683.32033.87763.96931.80012.45712.8002

picture of 1,3-Dioxolane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C2 105.453 C1 O5 C3 105.453
C2 C3 O5 102.278 C2 C3 H9 110.586
C2 C3 H10 114.191 C3 C2 O4 102.278
C3 C2 H8 110.586 C3 C2 H11 114.191
O4 C1 O5 108.236 O4 C1 H6 106.949
O4 C1 H7 111.533 O4 C2 H8 111.217
O4 C2 H11 107.249 O5 C1 H6 111.533
O5 C1 H7 106.949 O5 C3 H9 111.217
O5 C3 H10 107.249 H6 C1 H7 111.639
H8 C2 H11 110.961 H9 C3 H10 110.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability