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

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-305.964360
Energy at 298.15K-305.974673
Nuclear repulsion energy260.972341
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 LSDA/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 3120 3056 8.26      
2 A 3114 3051 7.94      
3 A 3107 3044 11.88      
4 A 3066 3003 27.07      
5 A 3013 2952 3.79      
6 A 2987 2927 51.43      
7 A 2959 2899 42.39      
8 A 2923 2863 79.25      
9 A 1495 1465 1.51      
10 A 1474 1444 9.94      
11 A 1461 1432 6.60      
12 A 1460 1431 8.48      
13 A 1403 1374 74.71      
14 A 1375 1347 6.73      
15 A 1338 1311 0.40      
16 A 1332 1305 4.34      
17 A 1287 1260 5.38      
18 A 1212 1187 18.10      
19 A 1182 1158 30.40      
20 A 1178 1154 5.71      
21 A 1119 1096 52.73      
22 A 1108 1085 51.44      
23 A 1085 1063 42.85      
24 A 1024 1003 39.56      
25 A 1007 986 23.32      
26 A 952 933 29.03      
27 A 887 869 2.62      
28 A 837 820 15.88      
29 A 801 785 37.56      
30 A 684 670 1.54      
31 A 630 617 4.04      
32 A 481 471 9.98      
33 A 330 324 7.24      
34 A 245 240 2.25      
35 A 216 212 0.96      
36 A 52 51 9.70      

Unscaled Zero Point Vibrational Energy (zpe) 25970.7 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 25443.5 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 LSDA/6-31G
ABC
0.22563 0.11414 0.08558

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.048 0.015 -0.261
H2 -2.628 -0.908 -0.096
H3 -2.625 0.873 0.119
H4 -1.877 0.146 -1.341
C5 -0.733 -0.064 0.432
H6 -0.832 -0.200 1.532
O7 0.043 1.151 0.214
O8 0.044 -1.136 -0.125
C9 1.420 -0.724 0.058
H10 2.045 -1.322 -0.620
H11 1.741 -0.885 1.108
C12 1.352 0.756 -0.275
H13 1.417 0.925 -1.367
H14 2.122 1.358 0.235

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.10211.10131.10181.48822.17732.42712.39163.56034.32084.12773.48013.74934.4087
H21.10211.79321.79602.14012.52573.38692.68164.05534.72044.53164.31754.61885.2727
H31.10131.79321.79432.13422.52282.68503.34954.34955.21294.80933.99884.30694.7733
H41.10181.79601.79432.12073.07732.66762.61053.68614.24974.48903.45503.38494.4657
C51.48822.14012.13422.12071.11281.45871.43672.28323.22632.69282.34992.97273.1957
H62.17732.52572.52283.07731.11282.08082.09522.74223.76392.69562.99153.83723.5824
O72.42713.38692.68502.66761.45872.08082.31252.33113.28902.79741.45202.10582.0887
O82.39162.68163.34952.61051.43672.09522.31251.44872.06992.11262.30532.77063.2663
C93.56034.05534.34953.68612.28322.74222.33111.44871.09911.10981.51772.17872.2035
H104.32084.72045.21294.24973.22633.76393.28902.06991.09911.80822.21712.44982.8139
H114.12774.53164.80934.48902.69282.69562.79742.11261.10981.80822.18063.08292.4367
C123.48014.31753.99883.45502.34992.99151.45202.30531.51772.21712.18061.10641.1021
H133.74934.61884.30693.38492.97273.83722.10582.77062.17872.44983.08291.10641.8022
H144.40875.27274.77334.46573.19573.58242.08873.26632.20352.81392.43671.10211.8022

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 112.871 C1 C5 O7 110.888
C1 C5 O8 109.686 H2 C1 H3 108.942
H2 C1 H4 109.151 H2 C1 C5 110.538
H3 C1 H4 109.055 H3 C1 C5 110.113
H4 C1 C5 109.017 C5 O7 C12 107.669
C5 O8 C9 104.612 H6 C5 O7 107.266
H6 C5 O8 109.880 O7 C5 O8 106.000
O7 C12 C9 103.416 O7 C12 H13 110.059
O7 C12 H14 108.954 O8 C9 H10 107.884
O8 C9 H11 110.630 O8 C9 C12 101.976
C9 C12 H13 111.290 C9 C12 H14 113.566
H10 C9 H11 109.897 H10 C9 C12 114.892
H11 C9 C12 111.237 H13 C12 H14 109.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.481      
2 H 0.182      
3 H 0.186      
4 H 0.186      
5 C 0.193      
6 H 0.165      
7 O -0.451      
8 O -0.433      
9 C -0.161      
10 H 0.196      
11 H 0.176      
12 C -0.121      
13 H 0.180      
14 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.208 -0.287 0.155 1.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.053 -0.163 -0.817
y -0.163 -41.792 -1.240
z -0.817 -1.240 -35.886
Traceless
 xyz
x 8.786 -0.163 -0.817
y -0.163 -8.822 -1.240
z -0.817 -1.240 0.037
Polar
3z2-r20.073
x2-y211.739
xy-0.163
xz-0.817
yz-1.240


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.748 0.066 -0.282
y 0.066 6.377 -0.104
z -0.282 -0.104 6.483


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000