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

using model chemistry: HF/6-31G

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/6-31G
 hartrees
Energy at 0K-305.691006
Energy at 298.15K-305.702479
Nuclear repulsion energy263.641101
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/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' 3379 3051 27.53      
2 A' 3316 2994 25.79      
3 A' 3266 2949 37.96      
4 A' 3211 2899 25.93      
5 A' 3182 2873 146.43      
6 A' 3168 2860 26.23      
7 A' 1685 1521 6.76      
8 A' 1668 1506 1.00      
9 A' 1635 1476 4.82      
10 A' 1544 1394 18.95      
11 A' 1429 1290 5.13      
12 A' 1312 1184 46.50      
13 A' 1283 1158 171.05      
14 A' 1200 1084 33.67      
15 A' 1084 979 60.80      
16 A' 970 876 6.39      
17 A' 894 807 18.63      
18 A' 699 631 10.47      
19 A' 526 475 1.29      
20 A' 409 369 20.34      
21 A' 264 238 5.95      
22 A" 3314 2992 39.39      
23 A" 3172 2864 21.63      
24 A" 1664 1502 2.19      
25 A" 1573 1420 9.12      
26 A" 1528 1380 2.80      
27 A" 1517 1370 0.21      
28 A" 1433 1294 1.10      
29 A" 1377 1244 31.38      
30 A" 1342 1212 5.11      
31 A" 1175 1061 62.57      
32 A" 1125 1016 66.72      
33 A" 1003 905 15.81      
34 A" 941 850 13.95      
35 A" 484 437 14.53      
36 A" 247 223 3.47      

Unscaled Zero Point Vibrational Energy (zpe) 29007.7 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 26191.0 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 HF/6-31G
ABC
0.16273 0.16077 0.09020

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.587 -1.279 0.000
O2 0.007 -0.752 1.171
O3 0.007 -0.752 -1.171
C4 0.007 0.685 1.247
C5 0.007 0.685 -1.247
C6 0.671 1.264 0.000
H7 -0.416 -2.337 0.000
H8 -1.651 -1.055 0.000
H9 0.540 0.934 2.149
H10 -1.018 1.038 1.337
H11 0.540 0.934 -2.149
H12 -1.018 1.038 -1.337
H13 1.720 0.996 0.000
H14 0.599 2.346 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.41521.41522.40172.40172.83771.07171.08703.28482.70993.28482.70993.24063.8151
O21.41522.34181.43922.81272.42402.01572.05242.02092.06923.76163.24722.71303.3647
O31.41522.34182.81271.43922.42402.01572.05243.76163.24722.02092.06922.71303.3647
C42.40171.43922.81272.49361.52663.29682.70771.07701.08743.44642.80202.14152.1598
C52.40172.81271.43922.49361.52663.29682.70773.44642.80201.07701.08742.14152.1598
C62.83772.42402.42401.52661.52663.76173.28172.17822.16602.17822.16601.08281.0849
H71.07172.01572.01573.29683.29683.76171.78044.02933.68004.02933.68003.95884.7924
H81.08702.05242.05242.70772.70773.28171.78043.65722.56313.65722.56313.94604.0783
H93.28482.02093.76161.07703.44642.17824.02933.65721.75944.29823.81972.45272.5722
H102.70992.06923.24721.08742.80202.16603.68002.56311.75943.81972.67433.04732.4727
H113.28483.76162.02093.44641.07702.17824.02933.65724.29823.81971.75942.45272.5722
H122.70993.24722.06922.80201.08742.16603.68002.56313.81972.67431.75943.04732.4727
H133.24062.71302.71302.14152.14151.08283.95883.94602.45273.04732.45273.04731.7553
H143.81513.36473.36472.15982.15981.08494.79244.07832.57222.47272.57222.47271.7553

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 114.569 C1 O3 C5 114.569
O2 C1 O3 111.664 O2 C1 H7 107.497
O2 C1 H8 109.517 O2 C4 C6 109.597
O2 C4 H9 105.962 O2 C4 H10 109.167
O3 C1 H7 107.497 O3 C1 H8 109.517
O3 C5 C6 109.597 O3 C5 H11 105.962
O3 C5 H12 109.167 C4 C6 C5 109.515
C4 C6 H13 109.127 C4 C6 H14 110.445
C5 C6 H13 109.127 C5 C6 H14 110.445
C6 C4 H9 112.417 C6 C4 H10 110.790
C6 C5 H11 112.417 C6 C5 H12 110.790
H7 C1 H8 111.130 H9 C4 H10 108.756
H11 C5 H12 108.756 H13 C6 H14 108.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.334      
2 O -0.699      
3 O -0.699      
4 C 0.011      
5 C 0.011      
6 C -0.349      
7 H 0.204      
8 H 0.145      
9 H 0.194      
10 H 0.149      
11 H 0.194      
12 H 0.149      
13 H 0.195      
14 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.138 2.682 0.000 2.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.944 2.263 0.000
y 2.263 -34.736 0.000
z 0.000 0.000 -40.691
Traceless
 xyz
x 1.769 2.263 0.000
y 2.263 3.581 0.000
z 0.000 0.000 -5.351
Polar
3z2-r2-10.701
x2-y2-1.208
xy2.263
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.916 0.360 0.000
y 0.360 6.972 0.000
z 0.000 0.000 6.294


<r2> (average value of r2) Å2
<r2> 141.299
(<r2>)1/2 11.887