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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-59.368547
Energy at 298.15K-59.378824
Nuclear repulsion energy145.424235
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
4/u)
Dep P Dep U
1 A 3123 3027 31.19      
2 A 3116 3021 25.19      
3 A 3102 3007 60.39      
4 A 3071 2977 33.37      
5 A 3038 2945 13.93      
6 A 3017 2925 111.52      
7 A 2992 2900 59.68      
8 A 2919 2830 116.00      
9 A 1540 1492 0.46      
10 A 1523 1477 1.05      
11 A 1496 1450 1.42      
12 A 1494 1449 5.73      
13 A 1445 1400 74.52      
14 A 1396 1354 4.72      
15 A 1390 1347 16.73      
16 A 1373 1331 0.64      
17 A 1335 1295 0.54      
18 A 1239 1201 11.98      
19 A 1223 1186 2.65      
20 A 1165 1130 34.66      
21 A 1155 1119 48.52      
22 A 1125 1091 107.53      
23 A 1106 1072 39.02      
24 A 1056 1024 21.67      
25 A 1038 1006 76.13      
26 A 936 907 9.79      
27 A 870 844 65.87      
28 A 853 827 6.51      
29 A 836 810 2.79      
30 A 709 688 1.24      
31 A 685 664 3.04      
32 A 503 487 3.62      
33 A 321 311 5.73      
34 A 213 207 0.07      
35 A 180 175 7.50      
36 A 34 33 3.02      

Unscaled Zero Point Vibrational Energy (zpe) 26308.1 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 25503.1 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
0.23104 0.11191 0.08252

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 -2.114 0.007 -0.149
H2 -2.650 -0.897 0.164
H3 -2.640 0.884 0.243
H4 -2.097 0.057 -1.243
C5 -0.688 -0.022 0.383
H6 -0.667 -0.084 1.491
O7 0.028 1.146 -0.034
O8 0.031 -1.127 -0.160
C9 1.413 -0.779 0.007
H10 1.988 -1.274 -0.783
H11 1.780 -1.121 0.988
C12 1.420 0.779 -0.090
H13 1.830 1.147 -1.039
H14 1.975 1.238 0.742

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09601.09581.09531.52272.18892.42902.42673.61744.34394.21103.61834.20094.3625
H21.09601.78281.78762.15892.51993.37352.70994.06754.74824.51144.40865.06865.1261
H31.09581.78281.78612.15722.52702.69563.36844.38815.20894.91104.07564.65794.6558
H41.09531.78761.78612.15343.08852.67682.66553.81894.32094.62613.77124.08074.6816
C51.52272.15892.15722.15341.10971.43181.42602.26493.17602.76872.30443.11912.9678
H62.18892.51992.52703.08851.10972.07832.07422.64863.69302.70542.75733.76183.0481
O72.42903.37352.69562.67681.43182.07832.27662.37183.20273.04171.44052.06312.0977
O82.42672.70993.36842.66551.42602.07422.27661.43522.05892.09252.36023.03053.1918
C93.61744.06754.38813.81892.26492.64862.37181.43521.09491.10221.56162.23142.2191
H104.34394.74825.20894.32093.17603.69303.20272.05891.09491.79002.24022.44012.9384
H114.21104.51144.91104.62612.76872.70543.04172.09251.10221.79002.21453.04252.3796
C123.61834.40864.07563.77122.30442.75731.44052.36021.56162.24022.21451.09681.1002
H134.20095.06864.65794.08073.11913.76182.06313.03052.23142.44013.04251.09681.7886
H144.36255.12614.65584.68162.96783.04812.09773.19182.21912.93842.37961.10021.7886

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 111.550 C1 C5 O7 110.560
C1 C5 O8 110.723 H2 C1 H3 108.853
H2 C1 H4 109.320 H2 C1 C5 109.990
H3 C1 H4 109.199 H3 C1 C5 109.864
H4 C1 C5 109.595 C5 O7 C12 106.696
C5 O8 C9 104.667 H6 C5 O7 109.066
H6 C5 O8 109.134 O7 C5 O8 105.620
O7 C12 C9 104.306 O7 C12 H13 108.036
O7 C12 H14 110.593 O8 C9 H10 108.180
O8 C9 H11 110.424 O8 C9 C12 103.838
C9 C12 H13 112.981 C9 C12 H14 111.788
H10 C9 H11 109.119 H10 C9 C12 113.819
H11 C9 C12 111.304 H13 C12 H14 109.001
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 -0.530      
2 H 0.170      
3 H 0.172      
4 H 0.168      
5 C 0.176      
6 H 0.106      
7 O -0.279      
8 O -0.280      
9 C -0.164      
10 H 0.178      
11 H 0.144      
12 C -0.165      
13 H 0.161      
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
  1.199 -0.148 0.634 1.365
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.094 -0.099 -0.832
y -0.099 -41.264 -0.338
z -0.832 -0.338 -36.055
Traceless
 xyz
x 7.565 -0.099 -0.832
y -0.099 -7.689 -0.338
z -0.832 -0.338 0.124
Polar
3z2-r20.247
x2-y210.170
xy-0.099
xz-0.832
yz-0.338


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.395 0.023 -0.108
y 0.023 7.104 -0.076
z -0.108 -0.076 7.148


<r2> (average value of r2) Å2
<r2> 127.246
(<r2>)1/2 11.280