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

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-59.175747
Energy at 298.15K-59.185911
Nuclear repulsion energy143.926584
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/CEP-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 3205 3069 37.87      
2 A 3197 3061 28.71      
3 A 3187 3052 52.79      
4 A 3156 3022 29.14      
5 A 3096 2964 18.72      
6 A 3095 2963 87.58      
7 A 3070 2939 59.56      
8 A 3016 2888 109.29      
9 A 1527 1462 2.49      
10 A 1512 1448 4.41      
11 A 1493 1430 8.04      
12 A 1487 1423 8.16      
13 A 1440 1378 65.16      
14 A 1399 1339 7.11      
15 A 1372 1314 1.94      
16 A 1357 1299 0.73      
17 A 1324 1268 5.89      
18 A 1226 1174 11.88      
19 A 1203 1152 1.99      
20 A 1186 1135 26.64      
21 A 1147 1099 20.73      
22 A 1119 1072 89.09      
23 A 1105 1058 38.19      
24 A 1045 1000 22.26      
25 A 1030 986 42.69      
26 A 957 916 20.13      
27 A 858 821 1.11      
28 A 844 808 29.70      
29 A 829 794 27.48      
30 A 688 659 2.17      
31 A 662 634 4.85      
32 A 486 465 8.05      
33 A 308 295 9.74      
34 A 198 190 0.30      
35 A 175 167 11.78      
36 A 28 27 6.33      

Unscaled Zero Point Vibrational Energy (zpe) 26512.4 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 25385.6 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/CEP-31G
ABC
0.22611 0.10949 0.08089

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.131 0.008 -0.165
H2 -2.676 -0.902 0.125
H3 -2.665 0.887 0.226
H4 -2.086 0.072 -1.261
C5 -0.719 -0.029 0.397
H6 -0.697 -0.101 1.504
O7 0.025 1.165 -0.005
O8 0.028 -1.142 -0.163
C9 1.430 -0.778 0.030
H10 2.017 -1.297 -0.737
H11 1.770 -1.092 1.032
C12 1.436 0.778 -0.116
H13 1.796 1.112 -1.099
H14 2.024 1.268 0.677

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.10031.10011.09911.52082.20342.45222.44703.65254.38654.22683.64964.18504.4230
H21.10031.79241.79442.16092.54183.40402.73044.10954.78834.54204.44885.05555.2066
H31.10011.79241.79252.15802.54612.71453.39484.42545.25574.92344.11684.65924.7264
H41.09911.79441.79252.15153.09952.68892.67393.84084.35704.63523.77034.02234.6990
C51.52082.16092.15802.15151.11011.46231.45302.30533.22162.78002.35693.14033.0466
H62.20342.54182.54613.09951.11012.09782.09552.67583.71802.70062.81903.80313.1566
O72.45223.40402.71452.68891.46232.09782.31222.39793.25003.03521.46692.08202.1145
O82.44702.73043.39482.67391.45302.09552.31221.46112.07592.11322.38133.01383.2399
C93.65254.10954.42543.84082.30532.67582.39791.46111.09601.10441.56302.23192.2267
H104.38654.78835.25574.35703.22163.71803.25002.07591.09601.79842.24252.44612.9285
H114.22684.54204.92344.63522.78002.70063.03522.11321.10441.79842.21953.06612.3998
C123.64964.44884.11683.77032.35692.81901.46692.38131.56302.24252.21951.09911.1018
H134.18505.05554.65924.02233.14033.80312.08203.01382.23192.44613.06611.09911.7968
H144.42305.20664.72644.69903.04663.15662.11453.23992.22672.92852.39981.10181.7968

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 112.830 C1 C5 O7 110.561
C1 C5 O8 110.720 H2 C1 H3 109.088
H2 C1 H4 109.345 H2 C1 C5 110.030
H3 C1 H4 109.186 H3 C1 C5 109.813
H4 C1 C5 109.362 C5 O7 C12 107.147
C5 O8 C9 104.569 H6 C5 O7 108.498
H6 C5 O8 108.950 O7 C5 O8 104.954
O7 C12 C9 104.591 O7 C12 H13 107.602
O7 C12 H14 109.999 O8 C9 H10 107.689
O8 C9 H11 110.142 O8 C9 C12 103.842
C9 C12 H13 112.781 C9 C12 H14 112.197
H10 C9 H11 109.632 H10 C9 C12 113.834
H11 C9 C12 111.468 H13 C12 H14 109.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252      
2 H 0.143      
3 H 0.146      
4 H 0.156      
5 C -0.223      
6 H 0.172      
7 O -0.239      
8 O -0.238      
9 C -0.167      
10 H 0.214      
11 H 0.138      
12 C -0.185      
13 H 0.177      
14 H 0.156      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.515 -0.212 0.980 1.816
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.095 -0.069 -0.850
y -0.069 -42.489 -0.681
z -0.850 -0.681 -34.968
Traceless
 xyz
x 9.633 -0.069 -0.850
y -0.069 -10.457 -0.681
z -0.850 -0.681 0.824
Polar
3z2-r21.647
x2-y213.393
xy-0.069
xz-0.850
yz-0.681


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.162 0.004 -0.131
y 0.004 6.171 -0.067
z -0.131 -0.067 5.646


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