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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-307.606006
Energy at 298.15K-307.616457
Nuclear repulsion energy264.334934
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 B1B95/6-311G*
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 3161 3030 21.72      
2 A 3158 3027 18.10      
3 A 3143 3013 35.51      
4 A 3095 2967 47.88      
5 A 3073 2946 9.94      
6 A 3053 2926 73.92      
7 A 3014 2890 61.81      
8 A 2948 2826 104.60      
9 A 1542 1478 0.50      
10 A 1522 1459 5.04      
11 A 1499 1437 2.25      
12 A 1498 1436 7.93      
13 A 1455 1394 79.98      
14 A 1402 1344 9.73      
15 A 1396 1339 3.65      
16 A 1387 1329 1.11      
17 A 1348 1293 0.37      
18 A 1267 1215 21.76      
19 A 1240 1189 1.54      
20 A 1191 1141 95.11      
21 A 1170 1121 37.37      
22 A 1146 1098 73.72      
23 A 1123 1076 46.29      
24 A 1092 1047 26.23      
25 A 1068 1024 53.08      
26 A 963 923 8.72      
27 A 893 856 52.38      
28 A 884 848 2.99      
29 A 862 827 8.91      
30 A 705 676 1.91      
31 A 685 657 3.16      
32 A 509 488 4.35      
33 A 326 312 5.65      
34 A 229 219 0.37      
35 A 204 195 4.94      
36 A 61 58 3.62      

Unscaled Zero Point Vibrational Energy (zpe) 26654.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 25550.7 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 B1B95/6-311G*
ABC
0.23717 0.11573 0.08573

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.077 0.013 -0.166
H2 -2.622 -0.893 0.098
H3 -2.607 0.874 0.240
H4 -2.032 0.102 -1.251
C5 -0.683 -0.040 0.384
H6 -0.681 -0.146 1.482
O7 0.030 1.133 0.041
O8 0.033 -1.105 -0.181
C9 1.381 -0.758 0.051
H10 2.006 -1.304 -0.654
H11 1.673 -1.026 1.074
C12 1.386 0.760 -0.148
H13 1.688 1.045 -1.158
H14 2.028 1.274 0.572

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.08991.08951.08951.49972.16592.39482.38793.54944.31694.08433.54234.02804.3574
H21.08991.77281.77722.13842.49853.33782.67874.00614.70654.40724.34264.89045.1524
H31.08951.77281.77452.13482.50832.65653.32594.31265.17794.75634.01254.51984.6638
H41.08951.77721.77452.12473.05942.64262.62083.75304.31694.51793.65133.83924.6028
C51.49972.13842.13482.12471.10401.41421.40192.21013.14632.64572.28043.02913.0181
H62.16592.49852.50833.05941.10402.05432.04852.58393.62242.54642.78443.74273.1915
O72.39483.33782.65652.64261.41422.05432.24842.32363.21262.90331.41862.04832.0727
O82.38792.67873.32592.62081.40192.04852.24841.41092.03772.06672.30402.88383.1943
C93.54944.00614.31263.75302.21012.58392.32361.41091.08841.09761.53092.19242.1946
H104.31694.70655.17794.31693.14633.62243.21262.03771.08841.78162.21362.42322.8541
H114.08434.40724.75634.51792.64572.54642.90332.06671.09761.78162.18353.04552.3803
C123.54234.34264.01253.65132.28042.78441.41862.30401.53092.21362.18351.09251.0933
H134.02804.89044.51983.83923.02913.74272.04832.88382.19242.42323.04551.09251.7786
H144.35745.15244.66384.60283.01813.19152.07273.19432.19462.85412.38031.09331.7786

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 111.678 C1 C5 O7 110.509
C1 C5 O8 110.719 H2 C1 H3 108.858
H2 C1 H4 109.260 H2 C1 C5 110.326
H3 C1 H4 109.048 H3 C1 C5 110.062
H4 C1 C5 109.264 C5 O7 C12 107.223
C5 O8 C9 103.576 H6 C5 O7 108.709
H6 C5 O8 109.083 O7 C5 O8 105.958
O7 C12 C9 103.895 O7 C12 H13 108.617
O7 C12 H14 110.543 O8 C9 H10 108.551
O8 C9 H11 110.321 O8 C9 C12 103.029
C9 C12 H13 112.302 C9 C12 H14 112.429
H10 C9 H11 109.174 H10 C9 C12 114.301
H11 C9 C12 111.271 H13 C12 H14 108.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.652      
2 H 0.226      
3 H 0.229      
4 H 0.225      
5 C 0.137      
6 H 0.181      
7 O -0.343      
8 O -0.317      
9 C -0.326      
10 H 0.227      
11 H 0.212      
12 C -0.214      
13 H 0.212      
14 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.146 -0.256 0.521 1.285
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.180 -0.168 -0.797
y -0.168 -40.740 -0.568
z -0.797 -0.568 -35.810
Traceless
 xyz
x 7.095 -0.168 -0.797
y -0.168 -7.245 -0.568
z -0.797 -0.568 0.150
Polar
3z2-r20.300
x2-y29.560
xy-0.168
xz-0.797
yz-0.568


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.794 0.030 -0.090
y 0.030 6.634 -0.131
z -0.090 -0.131 6.703


<r2> (average value of r2) Å2
<r2> 148.509
(<r2>)1/2 12.186