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

using model chemistry: B3LYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-307.784358
Energy at 298.15K-307.794732
Nuclear repulsion energy262.737620
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/6-311+G(3df,2p)
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 3121 3018 17.99      
2 A 3115 3013 12.86      
3 A 3106 3003 28.75      
4 A 3062 2961 33.17      
5 A 3044 2943 9.16      
6 A 3025 2926 70.20      
7 A 2991 2893 50.13      
8 A 2918 2821 90.58      
9 A 1534 1483 0.47      
10 A 1519 1469 3.11      
11 A 1489 1440 2.51      
12 A 1487 1438 6.23      
13 A 1437 1390 65.66      
14 A 1400 1354 0.84      
15 A 1386 1340 8.52      
16 A 1372 1326 0.18      
17 A 1342 1297 0.76      
18 A 1252 1210 14.85      
19 A 1230 1190 1.82      
20 A 1175 1136 47.96      
21 A 1158 1119 53.94      
22 A 1131 1094 81.38      
23 A 1109 1072 46.95      
24 A 1060 1025 24.49      
25 A 1037 1003 66.77      
26 A 946 915 8.72      
27 A 873 844 24.18      
28 A 866 838 35.92      
29 A 846 818 10.03      
30 A 706 682 0.72      
31 A 695 672 3.25      
32 A 508 491 3.60      
33 A 331 320 6.60      
34 A 216 209 0.18      
35 A 191 184 5.75      
36 A 44 43 3.88      

Unscaled Zero Point Vibrational Energy (zpe) 26359.6 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 25489.7 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/6-311+G(3df,2p)
ABC
0.23518 0.11384 0.08433

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.093 0.010 -0.176
H2 -2.635 -0.894 0.100
H3 -2.625 0.873 0.223
H4 -2.052 0.088 -1.262
C5 -0.696 -0.034 0.387
H6 -0.709 -0.123 1.486
O7 0.030 1.136 0.034
O8 0.034 -1.114 -0.153
C9 1.398 -0.764 0.031
H10 1.992 -1.289 -0.714
H11 1.735 -1.056 1.031
C12 1.399 0.767 -0.138
H13 1.718 1.078 -1.134
H14 2.023 1.265 0.607

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.08941.08911.08891.50642.16662.41222.40543.58144.32054.15333.57294.07184.3738
H21.08941.77051.77672.13992.49433.35042.68934.03514.71484.47114.36844.93505.1588
H31.08911.77051.77462.13712.50092.67483.33994.34705.18354.83564.04124.55464.6804
H41.08891.77671.77462.13743.06492.66672.64943.78064.30694.57233.69193.89974.6350
C51.50642.13992.13712.13741.10261.42141.41122.24623.16482.71542.30343.06203.0217
H62.16662.49432.50093.06491.10262.05912.05442.63973.67372.65572.80573.76753.1881
O72.41223.35042.67482.66671.42142.05912.25752.34093.20752.95081.42772.05312.0779
O82.40542.68933.33992.64941.41122.05442.25751.42022.04492.07442.32422.93263.1932
C93.58144.03514.34703.78062.24622.63972.34091.42021.08761.09581.54032.20222.2002
H104.32054.71485.18354.30693.16483.67373.20752.04491.08761.77922.21602.41892.8754
H114.15334.47114.83564.57232.71542.65572.95082.07441.09581.77922.19173.03972.3769
C123.57294.36844.04123.69192.30342.80571.42772.32421.54032.21602.19171.09091.0923
H134.07184.93504.55463.89973.06203.76752.05312.93262.20222.41893.03971.09091.7775
H144.37385.15884.68044.63503.02173.18812.07793.19322.20022.87542.37691.09231.7775

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 111.341 C1 C5 O7 110.923
C1 C5 O8 111.022 H2 C1 H3 108.726
H2 C1 H4 109.300 H2 C1 C5 110.009
H3 C1 H4 109.130 H3 C1 C5 109.808
H4 C1 C5 109.844 C5 O7 C12 107.890
C5 O8 C9 104.990 H6 C5 O7 108.673
H6 C5 O8 109.004 O7 C5 O8 105.687
O7 C12 C9 104.065 O7 C12 H13 108.464
O7 C12 H14 110.375 O8 C9 H10 108.525
O8 C9 H11 110.405 O8 C9 C12 103.374
C9 C12 H13 112.513 C9 C12 H14 112.272
H10 C9 H11 109.144 H10 C9 C12 113.852
H11 C9 C12 111.374 H13 C12 H14 109.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.298      
2 H 0.150      
3 H 0.147      
4 H 0.146      
5 C 0.482      
6 H 0.115      
7 O -0.716      
8 O -0.676      
9 C -0.063      
10 H 0.147      
11 H 0.145      
12 C 0.137      
13 H 0.143      
14 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.054 -0.200 0.530 1.196
CHELPG        
AIM        
ESP        


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 9.928 0.021 -0.059
y 0.021 7.856 -0.084
z -0.059 -0.084 7.550


<r2> (average value of r2) Å2
<r2> 150.924
(<r2>)1/2 12.285