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

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-305.980752
Energy at 298.15K-305.991051
Nuclear repulsion energy258.805089
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 B3LYP/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 3154 3043 23.00      
2 A 3147 3036 25.01      
3 A 3145 3035 14.55      
4 A 3133 3023 25.12      
5 A 3076 2968 6.82      
6 A 3051 2944 68.02      
7 A 3045 2938 47.15      
8 A 3039 2932 46.43      
9 A 1570 1515 0.24      
10 A 1560 1505 3.10      
11 A 1554 1500 2.40      
12 A 1550 1496 4.32      
13 A 1460 1408 16.30      
14 A 1424 1374 40.12      
15 A 1390 1341 1.38      
16 A 1379 1330 18.34      
17 A 1313 1267 8.86      
18 A 1246 1202 9.64      
19 A 1212 1169 0.09      
20 A 1161 1120 16.72      
21 A 1140 1100 33.55      
22 A 1118 1079 36.24      
23 A 1108 1069 109.93      
24 A 1021 985 14.97      
25 A 991 956 42.57      
26 A 927 895 12.34      
27 A 903 872 3.90      
28 A 838 808 28.23      
29 A 809 780 15.38      
30 A 686 662 2.88      
31 A 630 608 4.21      
32 A 457 441 13.24      
33 A 336 324 3.23      
34 A 237 228 0.87      
35 A 220 212 0.66      
36 A 32 31 11.20      

Unscaled Zero Point Vibrational Energy (zpe) 26528.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 25597.7 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 B3LYP/3-21G
ABC
0.21126 0.11432 0.08627

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.008 0.008 0.361
H2 2.577 -0.922 0.275
H3 2.629 0.847 0.035
H4 1.719 0.155 1.404
C5 0.754 -0.070 -0.487
H6 0.971 -0.191 -1.554
O7 -0.050 1.156 -0.348
O8 -0.058 -1.180 0.010
C9 -1.450 -0.705 -0.000
H10 -1.999 -1.280 0.746
H11 -1.906 -0.822 -0.991
C12 -1.288 0.781 0.355
H13 -1.183 0.910 1.438
H14 -2.094 1.411 -0.025

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09351.09301.09271.51652.18762.46092.40993.54964.22754.22383.38543.48674.3524
H21.09351.78551.78082.15192.54203.40662.66104.04214.61444.65954.22384.34095.2293
H31.09301.78551.78412.15172.52032.72363.36624.36435.14334.93993.93034.06254.7568
H41.09271.78081.78412.13513.07142.68312.62413.57114.03974.45323.24522.99824.2608
C51.51652.15192.15172.13511.09611.47251.46242.34433.25012.80952.36632.90113.2424
H62.18762.54202.52033.07141.09612.07642.11772.92233.91132.99863.11283.84783.7807
O72.46093.40662.72362.68311.47252.07642.36382.35483.30652.78761.47192.12942.0849
O82.40992.66103.36622.62411.46242.11772.36381.47082.07852.13192.34062.77053.2953
C93.54964.04214.36433.57112.34432.92232.35481.47081.09041.09701.53642.17912.2115
H104.22754.61445.14334.03973.25013.91133.30652.07851.09041.79842.21562.43822.8007
H114.22384.65954.93994.45322.80952.99862.78762.13191.09701.79842.18223.06972.4393
C123.38544.22383.93033.24522.36633.11281.47192.34061.53642.21562.18221.09611.0912
H133.48674.34094.06252.99822.90113.84782.12942.77052.17912.43823.06971.09611.7951
H144.35245.22934.75684.26083.24243.78072.08493.29532.21152.80072.43931.09121.7951

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 112.729 C1 C5 O7 110.829
C1 C5 O8 107.983 H2 C1 H3 109.500
H2 C1 H4 109.088 H2 C1 C5 110.019
H3 C1 H4 109.430 H3 C1 C5 110.035
H4 C1 C5 108.748 C5 O7 C12 106.963
C5 O8 C9 106.110 H6 C5 O7 106.963
H6 C5 O8 110.919 O7 C5 O8 107.301
O7 C12 C9 103.003 O7 C12 H13 111.185
O7 C12 H14 107.943 O8 C9 H10 107.557
O8 C9 H11 111.417 O8 C9 C12 102.192
C9 C12 H13 110.626 C9 C12 H14 113.542
H10 C9 H11 110.606 H10 C9 C12 113.934
H11 C9 C12 110.820 H13 C12 H14 110.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.561     -0.583
2 H 0.200     0.146
3 H 0.200     0.151
4 H 0.206     0.184
5 C 0.254     0.582
6 H 0.195     0.012
7 O -0.484     -0.453
8 O -0.483     -0.424
9 C -0.173     0.000
10 H 0.210     0.100
11 H 0.197     0.070
12 C -0.162     0.077
13 H 0.196     0.063
14 H 0.205     0.074


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.153 -0.069 0.294 1.192
CHELPG        
AIM        
ESP -1.176 -0.071 0.320 1.221


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.692 -0.063 -1.143
y -0.063 -41.422 1.189
z -1.143 1.189 -35.591
Traceless
 xyz
x 7.814 -0.063 -1.143
y -0.063 -8.280 1.189
z -1.143 1.189 0.466
Polar
3z2-r20.932
x2-y210.730
xy-0.063
xz-1.143
yz1.189


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.098 -0.061 -0.341
y -0.061 5.860 0.075
z -0.341 0.075 5.945


<r2> (average value of r2) Å2
<r2> 150.778
(<r2>)1/2 12.279