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All results from a given calculation for C4H8O2 (1,3-Dioxolane, 2-methyl-)

using model chemistry: MP2=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-306.730643
Energy at 298.15K-306.741214
HF Energy-305.834793
Nuclear repulsion energy263.282281
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/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 3232 3045 12.05      
2 A 3222 3036 10.02      
3 A 3204 3019 23.54      
4 A 3171 2987 33.04      
5 A 3124 2944 5.78      
6 A 3108 2928 47.75      
7 A 3081 2903 43.97      
8 A 3027 2852 83.38      
9 A 1590 1498 0.30      
10 A 1569 1479 2.95      
11 A 1549 1460 4.31      
12 A 1547 1458 2.06      
13 A 1492 1406 74.67      
14 A 1447 1363 2.66      
15 A 1430 1347 9.81      
16 A 1420 1338 7.88      
17 A 1369 1290 1.55      
18 A 1286 1212 19.03      
19 A 1258 1185 2.89      
20 A 1220 1149 67.08      
21 A 1192 1123 54.54      
22 A 1173 1105 57.01      
23 A 1151 1084 49.41      
24 A 1096 1033 19.66      
25 A 1072 1010 40.86      
26 A 988 931 14.97      
27 A 930 876 2.04      
28 A 911 858 47.13      
29 A 864 814 10.87      
30 A 710 669 1.67      
31 A 664 626 3.51      
32 A 512 483 6.68      
33 A 343 323 5.84      
34 A 260 245 0.88      
35 A 240 226 2.27      
36 A 57 53 6.53      

Unscaled Zero Point Vibrational Energy (zpe) 27254.1 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 25678.8 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 MP2=FULL/6-31G*
ABC
0.23147 0.11560 0.08626

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.059 0.015 -0.225
H2 -2.615 -0.907 -0.036
H3 -2.616 0.859 0.186
H4 -1.934 0.152 -1.300
C5 -0.700 -0.059 0.412
H6 -0.764 -0.200 1.505
O7 0.038 1.141 0.161
O8 0.043 -1.118 -0.157
C9 1.398 -0.735 0.065
H10 2.033 -1.318 -0.602
H11 1.687 -0.923 1.109
C12 1.358 0.757 -0.238
H13 1.489 0.951 -1.309
H14 2.093 1.337 0.327

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09231.09181.09101.50282.17162.41142.38853.54884.32044.08503.49713.82624.3926
H21.09231.77991.78342.14122.51003.35682.66854.01724.70024.45104.31204.68085.2279
H31.09181.77991.78092.13682.50842.66893.33104.32025.19394.74763.99804.36944.7354
H41.09101.78341.78092.12153.05992.64652.61293.70864.28854.47993.51223.51554.5027
C51.50282.14122.13682.12151.10371.43131.41312.23093.17572.63182.30812.96233.1241
H62.17162.51002.50843.05991.10372.06092.06382.65213.67682.58582.90883.78423.4518
O72.41143.35682.66892.64651.43132.06092.28122.31873.25762.80621.43182.07422.0712
O82.38852.66853.33102.61291.41312.06382.28121.42542.04932.08422.29202.77443.2352
C93.54884.01724.32023.70862.23092.65212.31871.42541.09091.09901.52322.17682.2013
H104.32044.70025.19394.28853.17573.67683.25762.04931.09091.79012.21272.43832.8142
H114.08504.45104.74764.47992.63182.58582.80622.08421.09901.79012.17843.06522.4257
C123.49714.31203.99803.51222.30812.90881.43182.29201.52322.21272.17841.09561.0938
H133.82624.68084.36943.51552.96233.78422.07422.77442.17682.43833.06521.09561.7862
H144.39265.22794.73544.50273.12413.45182.07123.23522.20132.81422.42571.09381.7862

picture of 1,3-Dioxolane, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.938 C1 C5 O7 110.521
C1 C5 O8 109.955 H2 C1 H3 109.163
H2 C1 H4 109.535 H2 C1 C5 110.193
H3 C1 H4 109.344 H3 C1 C5 109.875
H4 C1 C5 108.716 C5 O7 C12 107.443
C5 O8 C9 103.613 H6 C5 O7 108.079
H6 C5 O8 109.553 O7 C5 O8 106.635
O7 C12 C9 103.335 O7 C12 H13 109.591
O7 C12 H14 109.458 O8 C9 H10 108.325
O8 C9 H11 110.632 O8 C9 C12 101.976
C9 C12 H13 111.407 C9 C12 H14 113.514
H10 C9 H11 109.658 H10 C9 C12 114.644
H11 C9 C12 111.323 H13 C12 H14 109.346
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability