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

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-307.546528
Energy at 298.15K-307.556759
HF Energy-307.546528
Nuclear repulsion energy259.792000
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 BLYP/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 3070 3045 22.84      
2 A 3061 3036 18.94      
3 A 3046 3021 33.92      
4 A 2991 2967 44.10      
5 A 2990 2966 29.19      
6 A 2949 2926 70.51      
7 A 2915 2892 64.01      
8 A 2855 2832 108.08      
9 A 1517 1505 1.60      
10 A 1498 1486 1.10      
11 A 1480 1468 1.08      
12 A 1480 1468 3.28      
13 A 1408 1397 56.87      
14 A 1380 1369 11.50      
15 A 1364 1353 14.04      
16 A 1349 1338 9.74      
17 A 1303 1292 1.65      
18 A 1218 1208 13.57      
19 A 1191 1181 0.69      
20 A 1147 1137 17.31      
21 A 1116 1106 22.31      
22 A 1100 1091 115.42      
23 A 1079 1070 56.06      
24 A 1007 999 27.05      
25 A 988 980 60.12      
26 A 916 908 10.45      
27 A 867 860 5.54      
28 A 833 826 40.88      
29 A 803 796 25.18      
30 A 678 672 1.31      
31 A 649 644 2.00      
32 A 484 480 4.20      
33 A 323 320 5.19      
34 A 229 227 0.54      
35 A 210 209 2.85      
36 A 47 46 4.20      

Unscaled Zero Point Vibrational Energy (zpe) 25769.2 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 25560.5 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 BLYP/6-31G*
ABC
0.22582 0.11235 0.08345

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.092 0.013 -0.231
H2 -2.653 -0.909 -0.015
H3 -2.655 0.871 0.168
H4 -1.989 0.127 -1.320
C5 -0.708 -0.046 0.412
H6 -0.799 -0.162 1.518
O7 0.041 1.149 0.141
O8 0.041 -1.132 -0.122
C9 1.411 -0.759 0.032
H10 2.014 -1.319 -0.698
H11 1.781 -0.991 1.053
C12 1.381 0.776 -0.213
H13 1.575 1.023 -1.273
H14 2.110 1.322 0.412

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.10121.10051.10051.52732.18162.44512.42293.59684.34164.20193.55593.94384.4476
H21.10121.78901.79402.17112.51913.39452.70534.06774.73474.56214.37694.81635.2774
H31.10051.78901.79222.16632.51672.71123.37084.38305.22924.89204.05574.47194.7930
H41.10051.79401.79222.16193.09132.70252.67193.76534.30134.59323.60673.67554.6078
C51.52732.17112.16632.16191.11571.43611.42322.26773.20312.73832.33023.03233.1322
H62.18162.51912.51673.09131.11572.07902.08282.72953.76342.75012.93793.85173.4484
O72.44513.39452.71122.70251.43612.07902.29632.35133.26882.90501.43532.09022.0935
O82.42292.70533.37082.67191.42322.08282.29631.42912.06402.10502.33352.88503.2542
C93.59684.06774.38303.76532.26772.72952.35131.42911.10011.10991.55432.21512.2274
H104.34164.73475.22924.30133.20313.76343.26882.06401.10011.79642.24102.45092.8658
H114.20194.56214.89204.59322.73832.75012.90502.10501.10991.79642.20993.08392.4227
C123.55594.37694.05573.60672.33022.93791.43532.33351.55432.24102.20991.10621.1042
H133.94384.81634.47193.67553.03233.85172.09022.88502.21512.45093.08391.10621.7930
H144.44765.27744.79304.60783.13223.44842.09353.25422.22742.86582.42271.10421.7930

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 110.289 C1 C5 O7 111.160
C1 C5 O8 110.357 H2 C1 H3 108.687
H2 C1 H4 109.138 H2 C1 C5 110.323
H3 C1 H4 109.029 H3 C1 C5 109.987
H4 C1 C5 109.648 C5 O7 C12 108.485
C5 O8 C9 105.321 H6 C5 O7 108.466
H6 C5 O8 109.639 O7 C5 O8 106.847
O7 C12 C9 103.645 O7 C12 H13 109.986
O7 C12 H14 110.374 O8 C9 H10 108.691
O8 C9 H11 111.385 O8 C9 C12 102.842
C9 C12 H13 111.626 C9 C12 H14 112.728
H10 C9 H11 108.745 H10 C9 C12 114.097
H11 C9 C12 110.987 H13 C12 H14 108.421
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.419      
2 H 0.141      
3 H 0.144      
4 H 0.147      
5 C 0.357      
6 H 0.093      
7 O -0.462      
8 O -0.441      
9 C -0.050      
10 H 0.139      
11 H 0.121      
12 C -0.018      
13 H 0.126      
14 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.979 -0.247 0.244 1.038
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.297 -0.176 -0.695
y -0.176 -40.468 -0.703
z -0.695 -0.703 -35.932
Traceless
 xyz
x 6.903 -0.176 -0.695
y -0.176 -6.854 -0.703
z -0.695 -0.703 -0.050
Polar
3z2-r2-0.099
x2-y29.171
xy-0.176
xz-0.695
yz-0.703


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.902 0.050 -0.209
y 0.050 6.517 -0.115
z -0.209 -0.115 6.581


<r2> (average value of r2) Å2
<r2> 152.600
(<r2>)1/2 12.353