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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-305.907201
Energy at 298.15K-305.918416
Nuclear repulsion energy261.695995
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 mPW1PW91/3-21G*
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' 3186 3025 25.48      
2 A' 3166 3006 19.25      
3 A' 3155 2996 13.33      
4 A' 3099 2943 13.38      
5 A' 3020 2868 87.72      
6 A' 2974 2824 74.82      
7 A' 1560 1482 13.23      
8 A' 1545 1468 0.01      
9 A' 1518 1442 8.33      
10 A' 1419 1347 10.62      
11 A' 1336 1269 3.29      
12 A' 1200 1140 8.94      
13 A' 1153 1095 123.06      
14 A' 1105 1049 19.18      
15 A' 998 947 43.35      
16 A' 906 861 3.91      
17 A' 838 795 8.05      
18 A' 625 594 7.43      
19 A' 480 456 1.35      
20 A' 419 398 14.04      
21 A' 268 255 2.77      
22 A" 3157 2998 31.42      
23 A" 3012 2860 18.72      
24 A" 1545 1467 3.95      
25 A" 1460 1387 2.87      
26 A" 1411 1340 1.83      
27 A" 1398 1328 3.47      
28 A" 1334 1267 0.00      
29 A" 1283 1219 16.11      
30 A" 1236 1174 6.91      
31 A" 1066 1012 9.40      
32 A" 1025 973 89.28      
33 A" 939 891 17.00      
34 A" 886 842 9.96      
35 A" 452 429 10.10      
36 A" 251 239 2.20      

Unscaled Zero Point Vibrational Energy (zpe) 27212.2 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 25840.7 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 mPW1PW91/3-21G*
ABC
0.16267 0.15642 0.08981

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.640 -1.220 0.000
O2 0.014 -0.776 1.199
O3 0.014 -0.776 -1.199
C4 0.014 0.683 1.244
C5 0.014 0.683 -1.244
C6 0.713 1.241 0.000
H7 -0.589 -2.306 0.000
H8 -1.687 -0.869 0.000
H9 0.532 0.956 2.164
H10 -1.022 1.059 1.284
H11 0.532 0.956 -2.164
H12 -1.022 1.059 -1.284
H13 1.753 0.902 0.000
H14 0.685 2.335 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.43581.43582.36562.36562.80791.08731.10393.28522.64313.28522.64313.19803.7939
O21.43582.39821.46012.84602.44842.03492.08272.04992.10863.81873.25662.69803.4015
O31.43582.39822.84601.46012.44842.03492.08273.81873.25662.04992.10862.69803.4015
C42.36561.46012.84602.48861.53253.29322.61701.09071.10203.45852.75792.14972.1746
C52.36562.84601.46012.48861.53253.29322.61703.45852.75791.09071.10202.14972.1746
C62.80792.44842.44841.53251.53253.77793.19552.19032.16622.19032.16621.09331.0950
H71.08732.03492.03493.29323.29323.77791.80804.07223.62724.07223.62723.97174.8128
H81.10392.08272.08272.61702.61703.19551.80803.59712.41003.59712.41003.86883.9868
H93.28522.04993.81871.09073.45852.19034.07223.59711.78864.32833.78362.48532.5707
H102.64312.10863.25661.10202.75792.16623.62722.41001.78863.78362.56843.06142.4885
H113.28523.81872.04993.45851.09072.19034.07223.59714.32833.78361.78862.48532.5707
H122.64313.25662.10862.75791.10202.16623.62722.41003.78362.56841.78863.06142.4885
H133.19802.69802.69802.14972.14971.09333.97173.86882.48533.06142.48533.06141.7871
H143.79393.40153.40152.17462.17461.09504.81283.98682.57072.48852.57072.48851.7871

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 109.546 C1 O3 C5 109.546
O2 C1 O3 113.257 O2 C1 H7 106.692
O2 C1 H8 109.483 O2 C4 C6 109.779
O2 C4 H9 106.049 O2 C4 H10 109.984
O3 C1 H7 106.692 O3 C1 H8 109.483
O3 C5 C6 109.779 O3 C5 H11 106.049
O3 C5 H12 109.984 C4 C6 C5 108.569
C4 C6 H13 108.756 C4 C6 H14 110.605
C5 C6 H13 108.756 C5 C6 H14 110.605
C6 C4 H9 112.123 C6 C4 H10 109.537
C6 C5 H11 112.123 C6 C5 H12 109.537
H7 C1 H8 111.198 H9 C4 H10 109.309
H11 C5 H12 109.309 H13 C6 H14 109.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.058      
2 O -0.494      
3 O -0.494      
4 C -0.189      
5 C -0.189      
6 C -0.484      
7 H 0.248      
8 H 0.188      
9 H 0.241      
10 H 0.202      
11 H 0.241      
12 H 0.202      
13 H 0.253      
14 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.872 2.183 0.000 2.351
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.518 1.927 0.000
y 1.927 -34.489 0.000
z 0.000 0.000 -38.963
Traceless
 xyz
x 1.208 1.927 0.000
y 1.927 2.752 0.000
z 0.000 0.000 -3.959
Polar
3z2-r2-7.919
x2-y2-1.030
xy1.927
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.919 0.463 0.000
y 0.463 7.054 0.000
z 0.000 0.000 6.407


<r2> (average value of r2) Å2
<r2> 141.650
(<r2>)1/2 11.902