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All results from a given calculation for C4H8O2 (1,3-Dioxane)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-307.613337
Energy at 298.15K-307.624661
Nuclear repulsion energy265.614560
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 mPW1PW91/6-31+G**
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' 3178 3025 25.32      
2 A' 3148 2996 25.88      
3 A' 3135 2984 23.66      
4 A' 3080 2931 20.23      
5 A' 3005 2860 110.77      
6 A' 2957 2814 82.87      
7 A' 1521 1447 5.57      
8 A' 1506 1434 0.93      
9 A' 1477 1406 7.13      
10 A' 1419 1350 17.08      
11 A' 1328 1264 6.65      
12 A' 1225 1166 150.12      
13 A' 1199 1141 50.56      
14 A' 1121 1067 11.10      
15 A' 1021 972 39.64      
16 A' 932 887 12.16      
17 A' 861 820 11.34      
18 A' 656 624 4.93      
19 A' 494 470 0.76      
20 A' 435 414 10.63      
21 A' 268 255 2.28      
22 A" 3145 2994 37.14      
23 A" 2999 2854 20.39      
24 A" 1504 1431 7.69      
25 A" 1447 1377 13.71      
26 A" 1396 1329 2.41      
27 A" 1374 1308 0.36      
28 A" 1342 1278 2.14      
29 A" 1266 1205 34.61      
30 A" 1237 1178 0.07      
31 A" 1108 1054 67.69      
32 A" 1049 999 72.19      
33 A" 933 888 25.84      
34 A" 905 862 0.12      
35 A" 465 442 7.46      
36 A" 265 253 2.34      

Unscaled Zero Point Vibrational Energy (zpe) 27200.0 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 25889.0 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 mPW1PW91/6-31+G**
ABC
0.16777 0.16133 0.09237

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.616 -1.205 0.000
O2 0.017 -0.762 1.167
O3 0.017 -0.762 -1.167
C4 0.017 0.656 1.238
C5 0.017 0.656 -1.238
C6 0.678 1.248 0.000
H7 -0.565 -2.293 0.000
H8 -1.668 -0.864 0.000
H9 0.548 0.920 2.154
H10 -1.021 1.017 1.327
H11 0.548 0.920 -2.154
H12 -1.021 1.017 -1.327
H13 1.742 0.997 0.000
H14 0.583 2.339 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.39951.39952.32302.32302.77321.08911.10673.24202.61973.24202.61973.22603.7416
O21.39952.33371.41942.79172.41602.01132.05262.02112.06593.76033.23422.72573.3614
O31.39952.33372.79171.41942.41602.01132.05263.76033.23422.02112.06592.72573.3614
C42.32301.41942.79172.47641.52323.25082.58521.09141.10273.44412.79052.15072.1651
C52.32302.79171.41942.47641.52323.25082.58523.44412.79051.09141.10272.15072.1651
C62.77322.41602.41601.52321.52323.75293.15652.18312.16762.18312.16761.09401.0953
H71.08912.01132.01133.25083.25083.75291.80534.02533.59514.02533.59514.01834.7726
H81.10672.05262.05262.58522.58523.15651.80533.56872.39113.56872.39113.88513.9153
H93.24202.02113.76031.09143.44412.18314.02533.56871.77684.30883.81972.46442.5803
H102.61972.06593.23421.10272.79052.16763.59512.39111.77683.81972.65343.06542.4661
H113.24203.76032.02113.44411.09142.18314.02533.56874.30883.81971.77682.46442.5803
H122.61973.23422.06592.79051.10272.16763.59512.39113.81972.65341.77683.06542.4661
H133.22602.72572.72572.15072.15071.09404.01833.88512.46443.06542.46443.06541.7738
H143.74163.36143.36142.16512.16511.09534.77263.91532.58032.46612.58032.46611.7738

picture of 1,3-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C4 110.994 C1 O3 C5 110.994
O2 C1 O3 112.977 O2 C1 H7 107.191
O2 C1 H8 109.419 O2 C4 C6 110.331
O2 C4 H9 106.480 O2 C4 H10 109.350
O3 C1 H7 107.191 O3 C1 H8 109.419
O3 C5 C6 110.331 O3 C5 H11 106.480
O3 C5 H12 109.350 C4 C6 C5 108.760
C4 C6 H13 109.427 C4 C6 H14 110.489
C5 C6 H13 109.427 C5 C6 H14 110.489
C6 C4 H9 112.172 C6 C4 H10 110.242
C6 C5 H11 112.172 C6 C5 H12 110.242
H7 C1 H8 110.606 H9 C4 H10 108.152
H11 C5 H12 108.152 H13 C6 H14 108.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.040      
2 O -0.323      
3 O -0.323      
4 C -0.189      
5 C -0.189      
6 C -0.292      
7 H 0.160      
8 H 0.123      
9 H 0.169      
10 H 0.149      
11 H 0.169      
12 H 0.149      
13 H 0.192      
14 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.773 2.128 0.000 2.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.116 1.906 0.000
y 1.906 -35.163 0.000
z 0.000 0.000 -39.336
Traceless
 xyz
x 1.133 1.906 0.000
y 1.906 2.563 0.000
z 0.000 0.000 -3.696
Polar
3z2-r2-7.393
x2-y2-0.953
xy1.906
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.359 0.401 0.000
y 0.401 8.186 0.000
z 0.000 0.000 7.837


<r2> (average value of r2) Å2
<r2> 138.953
(<r2>)1/2 11.788