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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-307.336394
Energy at 298.15K-307.346881
HF Energy-307.049630
Nuclear repulsion energy262.851146
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 B2PLYP/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 3192 3030 18.42      
2 A 3183 3021 15.07      
3 A 3173 3012 29.87      
4 A 3131 2972 46.24      
5 A 3101 2943 8.14      
6 A 3081 2925 57.28      
7 A 3050 2895 54.98      
8 A 2999 2846 93.18      
9 A 1580 1499 0.62      
10 A 1560 1480 1.93      
11 A 1536 1458 4.24      
12 A 1536 1458 1.37      
13 A 1480 1405 73.53      
14 A 1438 1365 4.37      
15 A 1425 1352 13.54      
16 A 1411 1340 8.24      
17 A 1363 1294 1.38      
18 A 1276 1211 18.54      
19 A 1248 1185 1.72      
20 A 1204 1143 59.75      
21 A 1180 1120 70.66      
22 A 1162 1103 60.85      
23 A 1138 1080 51.94      
24 A 1084 1029 19.59      
25 A 1060 1006 49.51      
26 A 970 921 12.24      
27 A 912 866 2.48      
28 A 898 853 50.56      
29 A 856 813 11.04      
30 A 709 673 1.58      
31 A 674 640 3.03      
32 A 507 481 5.62      
33 A 337 320 5.47      
34 A 243 231 0.52      
35 A 222 211 3.04      
36 A 54 52 5.38      

Unscaled Zero Point Vibrational Energy (zpe) 26986.7 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 25615.8 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 B2PLYP/6-31G*
ABC
0.23167 0.11487 0.08549

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.067 0.013 -0.228
H2 -2.622 -0.905 -0.018
H3 -2.625 0.864 0.168
H4 -1.955 0.129 -1.308
C5 -0.700 -0.047 0.411
H6 -0.786 -0.166 1.506
O7 0.038 1.138 0.140
O8 0.039 -1.120 -0.127
C9 1.397 -0.750 0.036
H10 1.998 -1.306 -0.686
H11 1.754 -0.979 1.051
C12 1.367 0.768 -0.212
H13 1.553 1.009 -1.265
H14 2.086 1.313 0.406

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09271.09221.09181.51082.16392.41522.39443.55764.29834.15033.51603.89584.3984
H21.09271.77841.78232.14822.49833.35762.67254.02304.68534.50574.32964.75945.2220
H31.09221.77841.78062.14392.49652.67763.33554.33655.17814.83284.01134.42034.7391
H41.09181.78231.78062.13593.06162.66202.63303.71704.25094.53313.55553.61734.5467
C51.51082.14822.14392.13591.10481.42211.40992.24363.17282.70192.30743.00063.1007
H62.16392.49832.49653.06161.10482.06052.06402.69653.72242.70612.90863.81243.4131
O72.41523.35762.67762.66201.42212.06052.27372.32863.23952.87341.42342.07062.0730
O82.39442.67253.33552.63301.40992.06402.27371.41702.04522.08502.30942.84983.2243
C93.55764.02304.33653.71702.24362.69652.32861.41701.09111.09991.53822.19342.2065
H104.29834.68535.17814.25093.17283.72243.23952.04521.09111.78372.21872.42722.8390
H114.15034.50574.83284.53312.70192.70612.87342.08501.09991.78372.19033.05882.4044
C123.51604.32964.01133.55552.30742.90861.42342.30941.53822.21872.19031.09611.0945
H133.89584.75944.42033.61733.00063.81242.07062.84982.19342.42723.05881.09611.7804
H144.39845.22204.73914.54673.10073.41312.07303.22432.20652.83902.40441.09451.7804

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 110.688 C1 C5 O7 110.834
C1 C5 O8 110.083 H2 C1 H3 108.967
H2 C1 H4 109.349 H2 C1 C5 110.166
H3 C1 H4 109.234 H3 C1 C5 109.858
H4 C1 C5 109.248 C5 O7 C12 108.361
C5 O8 C9 105.060 H6 C5 O7 108.608
H6 C5 O8 109.729 O7 C5 O8 106.808
O7 C12 C9 103.604 O7 C12 H13 109.849
O7 C12 H14 110.141 O8 C9 H10 108.562
O8 C9 H11 111.250 O8 C9 C12 102.718
C9 C12 H13 111.635 C9 C12 H14 112.791
H10 C9 H11 109.001 H10 C9 C12 114.011
H11 C9 C12 111.166 H13 C12 H14 108.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.476      
2 H 0.163      
3 H 0.166      
4 H 0.170      
5 C 0.422      
6 H 0.127      
7 O -0.573      
8 O -0.548      
9 C -0.065      
10 H 0.172      
11 H 0.149      
12 C -0.016      
13 H 0.155      
14 H 0.153      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.266 0.042 -0.205
y 0.042 6.216 -0.108
z -0.205 -0.108 6.307


<r2> (average value of r2) Å2
<r2> 149.504
(<r2>)1/2 12.227