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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-59.270498
Energy at 298.15K-59.280754
Nuclear repulsion energy143.313621
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/CEP-121G
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 3121 3041 51.08      
2 A 3119 3040 24.98      
3 A 3107 3028 25.21      
4 A 3087 3008 41.90      
5 A 3026 2949 62.38      
6 A 3014 2937 19.15      
7 A 2995 2919 73.34      
8 A 2966 2890 86.15      
9 A 1533 1494 0.41      
10 A 1518 1479 3.64      
11 A 1504 1466 5.30      
12 A 1502 1463 5.75      
13 A 1437 1401 38.49      
14 A 1399 1363 30.82      
15 A 1371 1336 3.33      
16 A 1361 1327 1.63      
17 A 1319 1285 4.93      
18 A 1226 1195 12.98      
19 A 1197 1166 1.37      
20 A 1171 1141 25.73      
21 A 1135 1106 9.91      
22 A 1109 1080 81.42      
23 A 1102 1074 52.10      
24 A 1009 983 31.25      
25 A 991 966 39.32      
26 A 933 909 41.37      
27 A 866 844 2.20      
28 A 825 804 39.54      
29 A 799 779 29.42      
30 A 666 649 0.88      
31 A 651 634 3.96      
32 A 478 466 8.01      
33 A 319 311 8.34      
34 A 206 200 1.51      
35 A 192 187 4.72      
36 A 50 49 9.35      

Unscaled Zero Point Vibrational Energy (zpe) 26152.1 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 25485.2 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/CEP-121G
ABC
0.22156 0.10864 0.08075

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.117 0.013 -0.220
H2 -2.681 -0.900 0.004
H3 -2.668 0.876 0.169
H4 -2.011 0.115 -1.305
C5 -0.739 -0.051 0.425
H6 -0.786 -0.167 1.522
O7 0.037 1.174 0.128
O8 0.042 -1.153 -0.144
C9 1.453 -0.761 0.031
H10 2.038 -1.313 -0.708
H11 1.791 -1.018 1.046
C12 1.428 0.777 -0.198
H13 1.624 1.044 -1.244
H14 2.117 1.320 0.459

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09631.09581.09471.52312.20052.47232.45483.66204.38914.23573.62694.01294.4835
H21.09631.78471.78672.16052.53663.42152.73814.13644.79014.59314.44284.88495.3064
H31.09581.78471.78462.15572.54242.72193.39974.43685.26424.92354.11384.52124.8147
H41.09471.78671.78462.15413.09452.71552.67793.81524.33524.61203.67333.75214.6486
C51.52312.16052.15572.15411.10411.48091.46492.33793.25422.77882.40283.09313.1689
H62.20052.53662.54243.09451.10412.10222.10472.75473.77632.75472.95873.86273.4308
O72.47233.42152.72192.71551.48092.10222.34262.39983.29992.95371.48292.10142.1113
O82.45482.73813.39972.67791.46492.10472.34261.47522.08092.11982.37692.92173.2838
C93.66204.13644.43683.81522.33792.75472.39981.47521.09231.10061.55542.21602.2255
H104.38914.79015.26424.33523.25423.77633.29992.08091.09231.79632.23622.45212.8805
H114.23574.59314.92354.61202.77882.75472.95372.11981.10061.79632.21473.08612.4326
C123.62694.44284.11383.67332.40282.95871.48292.37691.55542.23622.21471.09621.0959
H134.01294.88494.52123.75213.09313.86272.10142.92172.21602.45213.08611.09621.7938
H144.48355.30644.81474.64863.16893.43082.11133.28382.22552.88052.43261.09591.7938

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 112.803 C1 C5 O7 110.759
C1 C5 O8 110.461 H2 C1 H3 108.999
H2 C1 H4 109.263 H2 C1 C5 110.066
H3 C1 H4 109.118 H3 C1 C5 109.718
H4 C1 C5 109.656 C5 O7 C12 108.328
C5 O8 C9 105.341 H6 C5 O7 107.941
H6 C5 O8 109.223 O7 C5 O8 105.353
O7 C12 C9 104.317 O7 C12 H13 108.198
O7 C12 H14 108.986 O8 C9 H10 107.349
O8 C9 H11 109.915 O8 C9 C12 103.279
C9 C12 H13 112.224 C9 C12 H14 113.004
H10 C9 H11 109.994 H10 C9 C12 114.112
H11 C9 C12 111.851 H13 C12 H14 109.832
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.453      
2 H 0.156      
3 H 0.160      
4 H 0.157      
5 C 0.125      
6 H 0.119      
7 O -0.285      
8 O -0.276      
9 C -0.164      
10 H 0.169      
11 H 0.142      
12 C -0.145      
13 H 0.149      
14 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.451 -0.279 0.497 1.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.935 -0.104 -0.890
y -0.104 -43.082 -1.132
z -0.890 -1.132 -36.040
Traceless
 xyz
x 9.626 -0.104 -0.890
y -0.104 -10.095 -1.132
z -0.890 -1.132 0.469
Polar
3z2-r20.938
x2-y213.147
xy-0.104
xz-0.890
yz-1.132


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.398 0.046 -0.251
y 0.046 6.960 -0.088
z -0.251 -0.088 6.891


<r2> (average value of r2) Å2
<r2> 129.798
(<r2>)1/2 11.393