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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-307.625422
Energy at 298.15K-307.635870
Nuclear repulsion energy263.491938
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3147 3030 22.57      
2 A 3143 3026 17.88      
3 A 3129 3013 36.73      
4 A 3082 2967 48.40      
5 A 3061 2947 10.00      
6 A 3042 2928 75.34      
7 A 3004 2892 63.67      
8 A 2940 2830 104.80      
9 A 1543 1485 0.48      
10 A 1524 1467 4.56      
11 A 1499 1443 2.55      
12 A 1498 1442 8.05      
13 A 1453 1399 78.32      
14 A 1403 1350 6.53      
15 A 1399 1347 6.15      
16 A 1386 1334 0.96      
17 A 1348 1298 0.48      
18 A 1264 1217 19.61      
19 A 1239 1192 1.23      
20 A 1187 1143 78.90      
21 A 1168 1125 44.73      
22 A 1144 1102 78.78      
23 A 1122 1080 49.57      
24 A 1085 1044 23.79      
25 A 1062 1022 56.80      
26 A 960 924 9.23      
27 A 888 855 52.79      
28 A 883 850 3.72      
29 A 858 826 9.72      
30 A 709 683 1.51      
31 A 693 667 3.00      
32 A 511 491 4.20      
33 A 331 318 5.98      
34 A 229 220 0.27      
35 A 201 193 5.25      
36 A 58 56 3.64      

Unscaled Zero Point Vibrational Energy (zpe) 26594.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 25602.3 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 B3PW91/6-311G*
ABC
0.23545 0.11499 0.08512

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.082 0.012 -0.174
H2 -2.630 -0.895 0.092
H3 -2.616 0.876 0.227
H4 -2.035 0.096 -1.261
C5 -0.688 -0.038 0.387
H6 -0.698 -0.139 1.488
O7 0.030 1.136 0.045
O8 0.034 -1.111 -0.167
C9 1.388 -0.760 0.043
H10 2.000 -1.302 -0.679
H11 1.703 -1.036 1.059
C12 1.389 0.764 -0.149
H13 1.690 1.056 -1.160
H14 2.033 1.275 0.574

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09221.09181.09171.50372.16812.40322.39513.56144.31794.11623.55164.03654.3698
H21.09221.77551.78012.14332.50093.34772.68544.02084.71184.44194.35464.90315.1664
H31.09181.77551.77772.13982.50972.66533.33494.32905.18364.79564.02394.52744.6795
H41.09171.78011.77772.13243.06592.65542.63253.76104.30924.54243.66093.84774.6161
C51.50372.14332.13982.13241.10581.41861.40622.22433.15552.67632.28963.04033.0274
H62.16812.50092.50973.06591.10582.05872.05412.61243.65062.59822.80113.76013.2081
O72.40323.34772.66532.65541.41862.05872.25702.33223.21702.92331.42182.05232.0767
O82.39512.68543.33492.63251.40622.05412.25701.41452.04082.07272.31312.90233.2002
C93.56144.02084.32903.76102.22432.61242.33221.41451.09061.09961.53592.19892.2003
H104.31794.71185.18364.30923.15553.65063.21702.04081.09061.78382.21872.42642.8661
H114.11624.44194.79564.54242.67632.59822.92332.07271.09961.78382.19043.04992.3845
C123.55164.35464.02393.66092.28962.80111.42182.31311.53592.21872.19041.09461.0955
H134.03654.90314.52743.84773.04033.76012.05232.90232.19892.42643.04991.09461.7814
H144.36985.16644.67954.61613.02743.20812.07673.20022.20032.86612.38451.09551.7814

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 111.467 C1 C5 O7 110.616
C1 C5 O8 110.744 H2 C1 H3 108.774
H2 C1 H4 109.201 H2 C1 C5 110.308
H3 C1 H4 109.011 H3 C1 C5 110.048
H4 C1 C5 109.473 C5 O7 C12 107.430
C5 O8 C9 104.103 H6 C5 O7 108.644
H6 C5 O8 109.130 O7 C5 O8 106.068
O7 C12 C9 104.028 O7 C12 H13 108.589
O7 C12 H14 110.496 O8 C9 H10 108.412
O8 C9 H11 110.432 O8 C9 C12 103.181
C9 C12 H13 112.342 C9 C12 H14 112.403
H10 C9 H11 109.066 H10 C9 C12 114.219
H11 C9 C12 111.354 H13 C12 H14 108.855
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.659      
2 H 0.228      
3 H 0.231      
4 H 0.227      
5 C 0.152      
6 H 0.180      
7 O -0.353      
8 O -0.328      
9 C -0.317      
10 H 0.228      
11 H 0.211      
12 C -0.216      
13 H 0.212      
14 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.151 -0.242 0.494 1.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.149 -0.157 -0.805
y -0.157 -40.806 -0.550
z -0.805 -0.550 -35.739
Traceless
 xyz
x 7.123 -0.157 -0.805
y -0.157 -7.361 -0.550
z -0.805 -0.550 0.238
Polar
3z2-r20.477
x2-y29.656
xy-0.157
xz-0.805
yz-0.550


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 149.562
(<r2>)1/2 12.230