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

using model chemistry: HF/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVTZ
 hartrees
Energy at 0K-305.948590
Energy at 298.15K-305.960220
Nuclear repulsion energy267.785260
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 HF/cc-pVTZ
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' 3276 2982 46.22      
2 A' 3241 2950 43.24      
3 A' 3213 2924 55.36      
4 A' 3171 2886 25.71      
5 A' 3121 2841 143.89      
6 A' 3090 2812 60.24      
7 A' 1661 1512 2.73      
8 A' 1638 1491 0.68      
9 A' 1598 1454 5.30      
10 A' 1545 1406 26.55      
11 A' 1433 1304 9.85      
12 A' 1342 1222 185.76      
13 A' 1304 1187 73.24      
14 A' 1216 1106 19.59      
15 A' 1099 1000 42.96      
16 A' 990 901 17.76      
17 A' 912 830 10.51      
18 A' 715 651 5.07      
19 A' 534 486 0.47      
20 A' 447 407 12.45      
21 A' 271 247 2.13      
22 A" 3238 2947 63.41      
23 A" 3112 2832 20.82      
24 A" 1635 1488 4.90      
25 A" 1582 1440 19.59      
26 A" 1516 1380 2.62      
27 A" 1494 1360 0.83      
28 A" 1454 1323 2.10      
29 A" 1372 1249 50.25      
30 A" 1337 1216 0.54      
31 A" 1216 1107 99.10      
32 A" 1121 1020 44.30      
33 A" 1002 912 14.16      
34 A" 969 882 0.01      
35 A" 499 454 8.12      
36 A" 273 249 2.39      

Unscaled Zero Point Vibrational Energy (zpe) 28817.8 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 26227.1 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 HF/cc-pVTZ
ABC
0.16969 0.16449 0.09349

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.596 -1.215 0.000
O2 0.014 -0.749 1.148
O3 0.014 -0.749 -1.148
C4 0.014 0.649 1.237
C5 0.014 0.649 -1.237
C6 0.663 1.252 0.000
H7 -0.514 -2.289 0.000
H8 -1.649 -0.924 0.000
H9 0.551 0.909 2.138
H10 -1.009 1.010 1.340
H11 0.551 0.909 -2.138
H12 -1.009 1.010 -1.340
H13 1.721 1.017 0.000
H14 0.555 2.332 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.38141.38142.31912.31912.77021.07721.09223.22412.62933.22412.62933.21773.7289
O21.38142.29651.40152.76502.39721.99202.02882.00392.04413.71953.21432.71153.3323
O31.38142.29652.76501.40152.39721.99202.02883.71953.21432.00392.04412.71153.3323
C42.31911.40152.76502.47391.52143.23162.60221.07991.09003.42682.79592.13982.1571
C52.31912.76501.40152.47391.52143.23162.60223.42682.79591.07991.09002.13982.1571
C62.77022.39722.39721.52141.52143.73193.17532.16822.15672.16822.15671.08371.0847
H71.07721.99201.99203.23163.23163.73191.77543.99103.59443.99103.59443.99094.7428
H81.09222.02882.02882.60222.60223.17531.77543.57292.43763.57292.43763.88923.9316
H93.22412.00393.71951.07993.42682.16823.99103.57291.75494.27553.81272.43972.5681
H102.62932.04413.21431.09002.79592.15673.59442.43761.75493.81272.67963.04142.4477
H113.22413.71952.00393.42681.07992.16823.99103.57294.27553.81271.75492.43972.5681
H122.62933.21432.04412.79591.09002.15673.59442.43763.81272.67961.75493.04142.4477
H133.21772.71152.71152.13982.13981.08373.99093.88922.43973.04142.43973.04141.7570
H143.72893.33233.33232.15712.15711.08474.74283.93162.56812.44772.56812.44771.7570

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 112.885 C1 O3 C5 112.885
O2 C1 O3 112.446 O2 C1 H7 107.589
O2 C1 H8 109.655 O2 C4 C6 110.127
O2 C4 H9 107.003 O2 C4 H10 109.620
O3 C1 H7 107.589 O3 C1 H8 109.655
O3 C5 C6 110.127 O3 C5 H11 107.003
O3 C5 H12 109.620 C4 C6 C5 108.783
C4 C6 H13 109.289 C4 C6 H14 110.608
C5 C6 H13 109.289 C5 C6 H14 110.608
C6 C4 H9 111.794 C6 C4 H10 110.259
C6 C5 H11 111.794 C6 C5 H12 110.259
H7 C1 H8 109.844 H9 C4 H10 107.949
H11 C5 H12 107.949 H13 C6 H14 108.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.192      
2 O -0.361      
3 O -0.361      
4 C 0.010      
5 C 0.010      
6 C -0.182      
7 H 0.111      
8 H 0.033      
9 H 0.110      
10 H 0.067      
11 H 0.110      
12 H 0.067      
13 H 0.097      
14 H 0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.785 1.955 0.000 2.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.811 1.639 0.000
y 1.639 -35.049 0.000
z 0.000 0.000 -39.035
Traceless
 xyz
x 1.231 1.639 0.000
y 1.639 2.374 0.000
z 0.000 0.000 -3.605
Polar
3z2-r2-7.210
x2-y2-0.762
xy1.639
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.751 0.431 0.000
y 0.431 7.605 0.000
z 0.000 0.000 7.263


<r2> (average value of r2) Å2
<r2> 137.308
(<r2>)1/2 11.718