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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-307.565172
Energy at 298.15K-307.575609
Nuclear repulsion energy263.296575
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 B3PW91/6-31G**
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 3171 3039 15.89      
2 A 3164 3033 13.49      
3 A 3138 3007 29.72      
4 A 3088 2960 48.60      
5 A 3074 2946 8.13      
6 A 3043 2917 62.51      
7 A 3010 2885 58.37      
8 A 2945 2822 101.58      
9 A 1541 1477 0.35      
10 A 1521 1458 3.17      
11 A 1495 1433 2.00      
12 A 1494 1432 6.37      
13 A 1450 1390 79.05      
14 A 1401 1342 8.06      
15 A 1397 1339 6.54      
16 A 1385 1328 4.56      
17 A 1340 1285 0.84      
18 A 1258 1206 23.02      
19 A 1231 1180 0.82      
20 A 1190 1140 123.15      
21 A 1168 1119 45.87      
22 A 1144 1097 52.68      
23 A 1121 1075 52.56      
24 A 1090 1045 17.60      
25 A 1066 1022 39.29      
26 A 961 921 8.05      
27 A 896 859 3.70      
28 A 892 855 43.01      
29 A 856 820 8.12      
30 A 707 678 1.36      
31 A 679 651 2.83      
32 A 503 482 4.69      
33 A 332 318 5.71      
34 A 232 223 0.42      
35 A 210 202 3.80      
36 A 51 49 4.46      

Unscaled Zero Point Vibrational Energy (zpe) 26622.9 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 25515.4 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 B3PW91/6-31G**
ABC
0.23362 0.11506 0.08544

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.075 0.013 -0.201
H2 -2.629 -0.899 0.036
H3 -2.619 0.870 0.203
H4 -1.997 0.117 -1.286
C5 -0.693 -0.046 0.399
H6 -0.739 -0.163 1.499
O7 0.035 1.138 0.100
O8 0.038 -1.114 -0.155
C9 1.392 -0.752 0.046
H10 2.012 -1.308 -0.660
H11 1.713 -0.993 1.072
C12 1.376 0.763 -0.188
H13 1.608 1.019 -1.229
H14 2.072 1.298 0.469

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09311.09271.09251.50762.16922.40972.39523.55854.31964.12093.53133.95444.3932
H21.09311.77741.78272.14612.50073.35382.68204.02284.71034.46474.34154.82015.2072
H31.09271.77741.78032.14212.50662.66963.33564.32945.19024.79554.01554.46624.7186
H41.09251.78271.78032.13643.06842.66262.63333.74314.30034.53373.60513.71694.5860
C51.50762.14612.14212.13641.10721.42181.40772.22903.16732.67192.29783.01393.0757
H62.16922.50072.50663.06841.10722.06142.06032.64523.68012.62392.85953.78863.3317
O72.40973.35382.66962.66261.42182.06142.26642.32723.23552.88121.42162.06332.0768
O82.39522.68203.33562.63331.40772.06032.26641.41552.04702.08022.30562.85863.2167
C93.55854.02284.32943.74312.22902.64522.32721.41551.09241.10141.53382.19382.2015
H104.31964.71035.19024.30033.16733.68013.23552.04701.09241.78602.21762.42922.8407
H114.12094.46474.79554.53372.67192.62392.88122.08021.10141.78602.18753.05862.3959
C123.53134.34154.01553.60512.29782.85951.42162.30561.53382.21762.18751.09741.0966
H133.95444.82014.46623.71693.01393.78862.06332.85862.19382.42923.05861.09741.7825
H144.39325.20724.71864.58603.07573.33172.07683.21672.20152.84072.39591.09661.7825

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 111.183 C1 C5 O7 110.659
C1 C5 O8 110.439 H2 C1 H3 108.811
H2 C1 H4 109.309 H2 C1 C5 110.197
H3 C1 H4 109.123 H3 C1 C5 109.910
H4 C1 C5 109.468 C5 O7 C12 107.825
C5 O8 C9 104.278 H6 C5 O7 108.551
H6 C5 O8 109.431 O7 C5 O8 106.444
O7 C12 C9 103.831 O7 C12 H13 109.313
O7 C12 H14 110.450 O8 C9 H10 108.733
O8 C9 H11 110.861 O8 C9 C12 102.770
C9 C12 H13 111.911 C9 C12 H14 112.574
H10 C9 H11 109.003 H10 C9 C12 114.170
H11 C9 C12 111.156 H13 C12 H14 108.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.402      
2 H 0.141      
3 H 0.144      
4 H 0.148      
5 C 0.384      
6 H 0.098      
7 O -0.515      
8 O -0.489      
9 C -0.038      
10 H 0.142      
11 H 0.123      
12 C 0.013      
13 H 0.130      
14 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.056 -0.245 0.348 1.139
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.640 -0.173 -0.713
y -0.173 -40.215 -0.692
z -0.713 -0.692 -35.471
Traceless
 xyz
x 7.203 -0.173 -0.713
y -0.173 -7.160 -0.692
z -0.713 -0.692 -0.043
Polar
3z2-r2-0.086
x2-y29.575
xy-0.173
xz-0.713
yz-0.692


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 149.187
(<r2>)1/2 12.214