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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-307.435583
Energy at 298.15K-307.445967
Nuclear repulsion energy260.206825
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 B1B95/6-31G
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 3192 3044 25.53      
2 A 3191 3043 14.00      
3 A 3181 3034 13.02      
4 A 3164 3017 29.08      
5 A 3089 2946 19.89      
6 A 3088 2945 34.41      
7 A 3065 2923 50.05      
8 A 3048 2907 65.74      
9 A 1557 1485 0.40      
10 A 1541 1470 4.14      
11 A 1526 1455 5.57      
12 A 1525 1455 5.43      
13 A 1457 1389 41.59      
14 A 1429 1363 25.98      
15 A 1392 1328 1.12      
16 A 1383 1319 5.04      
17 A 1337 1275 5.57      
18 A 1254 1196 13.66      
19 A 1219 1163 2.31      
20 A 1195 1140 33.66      
21 A 1147 1093 13.85      
22 A 1140 1087 101.77      
23 A 1121 1069 34.37      
24 A 1040 992 26.06      
25 A 1020 973 31.31      
26 A 964 919 38.37      
27 A 904 862 3.01      
28 A 852 812 30.71      
29 A 819 781 25.51      
30 A 687 656 1.87      
31 A 641 612 4.68      
32 A 479 457 11.50      
33 A 335 319 6.57      
34 A 236 225 1.54      
35 A 217 207 1.35      
36 A 57 54 12.27      

Unscaled Zero Point Vibrational Energy (zpe) 26744.6 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 25506.3 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 B1B95/6-31G
ABC
0.22358 0.11310 0.08491

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.056 0.013 0.279
H2 2.627 -0.905 0.124
H3 2.637 0.859 -0.092
H4 1.875 0.145 1.347
C5 0.742 -0.063 -0.442
H6 0.858 -0.193 -1.525
O7 -0.044 1.151 -0.233
O8 -0.048 -1.145 0.099
C9 -1.435 -0.723 -0.041
H10 -2.028 -1.309 0.657
H11 -1.784 -0.894 -1.066
C12 -1.353 0.763 0.285
H13 -1.389 0.941 1.363
H14 -2.112 1.365 -0.215

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09201.09141.09101.50052.17542.44302.40823.58194.30904.16883.49003.72874.4092
H21.09201.77721.77822.14012.52083.38962.68574.06904.70254.56884.31784.59015.2651
H31.09141.77721.77782.13602.51462.70053.35564.36865.19834.85464.00834.28144.7770
H41.09101.77821.77782.12803.06582.68252.63103.69334.22224.50523.45433.36044.4527
C51.50052.14012.13602.12801.09721.46191.44452.31003.23032.73182.36642.96803.1997
H62.17542.52082.51463.06581.09722.07142.08942.78263.78712.77243.01313.83133.6012
O72.44303.38962.70052.68251.46192.07142.31982.34203.28372.81151.45982.09772.0787
O82.40822.68573.35562.63101.44452.08942.31981.45612.06362.10572.31872.78343.2645
C93.58194.06904.36863.69332.31002.78262.34201.45611.08781.09611.52412.17822.2025
H104.30904.70255.19834.22223.23033.78713.28372.06361.08781.78972.21142.44342.8145
H114.16884.56884.85464.50522.73182.77242.81152.10571.09611.78972.18113.06982.4367
C123.49004.31784.00833.45432.36643.01311.45982.31871.52412.21142.18111.09331.0899
H133.72874.59014.28143.36042.96803.83132.09772.78342.17822.44343.06981.09331.7859
H144.40925.26514.77704.45273.19973.60122.07873.26452.20252.81452.43671.08991.7859

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 112.823 C1 C5 O7 111.105
C1 C5 O8 109.705 H2 C1 H3 108.966
H2 C1 H4 109.089 H2 C1 C5 110.286
H3 C1 H4 109.095 H3 C1 C5 109.992
H4 C1 C5 109.389 C5 O7 C12 108.181
C5 O8 C9 105.576 H6 C5 O7 107.217
H6 C5 O8 109.825 O7 C5 O8 105.911
O7 C12 C9 103.399 O7 C12 H13 109.665
O7 C12 H14 108.360 O8 C9 H10 107.545
O8 C9 H11 110.392 O8 C9 C12 102.139
C9 C12 H13 111.588 C9 C12 H14 113.787
H10 C9 H11 110.064 H10 C9 C12 114.669
H11 C9 C12 111.655 H13 C12 H14 109.776
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.435      
2 H 0.169      
3 H 0.172      
4 H 0.174      
5 C 0.270      
6 H 0.163      
7 O -0.529      
8 O -0.512      
9 C -0.108      
10 H 0.187      
11 H 0.170      
12 C -0.067      
13 H 0.173      
14 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.313 -0.232 -0.110 1.338
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.616 0.079 -0.933
y 0.079 -41.989 1.362
z -0.933 1.362 -35.515
Traceless
 xyz
x 9.136 0.079 -0.933
y 0.079 -9.424 1.362
z -0.933 1.362 0.288
Polar
3z2-r20.577
x2-y212.373
xy0.079
xz-0.933
yz1.362


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.373 -0.053 -0.286
y -0.053 6.187 0.076
z -0.286 0.076 6.174


<r2> (average value of r2) Å2
<r2> 151.033
(<r2>)1/2 12.290