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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-305.746229
Energy at 298.15K-305.757657
Nuclear repulsion energy262.725861
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3406 3065 34.59      
2 A' 3344 3009 41.41      
3 A' 3295 2965 58.45      
4 A' 3233 2910 43.59      
5 A' 3209 2888 202.39      
6 A' 3196 2876 38.94      
7 A' 1671 1504 6.93      
8 A' 1657 1491 0.30      
9 A' 1630 1466 7.60      
10 A' 1539 1385 19.87      
11 A' 1421 1279 6.38      
12 A' 1310 1179 53.49      
13 A' 1281 1153 168.94      
14 A' 1198 1078 34.32      
15 A' 1073 966 57.50      
16 A' 971 874 6.64      
17 A' 888 799 17.89      
18 A' 691 622 10.11      
19 A' 520 468 1.47      
20 A' 405 364 19.83      
21 A' 259 233 6.34      
22 A" 3340 3006 53.39      
23 A" 3200 2880 31.90      
24 A" 1653 1488 3.91      
25 A" 1565 1408 11.14      
26 A" 1523 1371 2.22      
27 A" 1510 1359 0.34      
28 A" 1425 1283 1.30      
29 A" 1367 1231 36.49      
30 A" 1333 1200 4.56      
31 A" 1187 1068 57.99      
32 A" 1124 1012 79.54      
33 A" 996 896 17.08      
34 A" 938 844 21.60      
35 A" 480 432 13.95      
36 A" 245 221 3.59      

Unscaled Zero Point Vibrational Energy (zpe) 29042.3 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 26135.2 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/LANL2DZ
ABC
0.16163 0.15947 0.08950

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.593 -1.281 0.000
O2 0.009 -0.756 1.176
O3 0.009 -0.756 -1.176
C4 0.009 0.686 1.252
C5 0.009 0.686 -1.252
C6 0.673 1.271 0.000
H7 -0.430 -2.340 0.000
H8 -1.656 -1.045 0.000
H9 0.544 0.937 2.152
H10 -1.017 1.038 1.346
H11 0.544 0.937 -2.152
H12 -1.017 1.038 -1.346
H13 1.724 1.012 0.000
H14 0.590 2.352 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.42191.42192.40802.40802.84891.07211.08813.29302.71393.29302.71393.25973.8212
O21.42192.35291.44422.82452.43632.02152.05852.02632.07303.77263.26042.72993.3744
O31.42192.35292.82451.44422.43632.02152.05853.77263.26042.02632.07302.72993.3744
C42.40801.44422.82452.50401.53343.30452.70811.07681.08783.45492.81472.14842.1640
C52.40802.82451.44422.50401.53343.30452.70813.45492.81471.07681.08782.14842.1640
C62.84892.43632.43631.53341.53343.77633.28452.18152.17272.18152.17271.08211.0846
H71.07212.02152.02153.30453.30453.77631.78314.04023.68314.04023.68313.98484.8026
H81.08812.05852.05852.70812.70813.28451.78313.66042.56063.66042.56063.95624.0727
H93.29302.02633.77261.07683.45492.18154.04023.66041.75934.30383.83132.45532.5760
H102.71392.07303.26041.08782.81472.17273.68312.56061.75933.83132.69153.05302.4742
H113.29303.77262.02633.45491.07682.18154.04023.66044.30383.83131.75932.45532.5760
H122.71393.26042.07302.81471.08782.17273.68312.56063.83132.69151.75933.05302.4742
H133.25972.72992.72992.14842.14841.08213.98483.95622.45533.05302.45533.05301.7556
H143.82123.37443.37442.16402.16401.08464.80264.07272.57602.47422.57602.47421.7556

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 114.311 C1 O3 C5 114.311
O2 C1 O3 111.669 O2 C1 H7 107.472
O2 C1 H8 109.476 O2 C4 C6 109.773
O2 C4 H9 106.063 O2 C4 H10 109.104
O3 C1 H7 107.472 O3 C1 H8 109.476
O3 C5 C6 109.773 O3 C5 H11 106.063
O3 C5 H12 109.104 C4 C6 C5 109.466
C4 C6 H13 109.231 C4 C6 H14 110.321
C5 C6 H13 109.231 C5 C6 H14 110.321
C6 C4 H9 112.201 C6 C4 H10 110.820
C6 C5 H11 112.201 C6 C5 H12 110.820
H7 C1 H8 111.263 H9 C4 H10 108.730
H11 C5 H12 108.730 H13 C6 H14 108.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.089      
2 O -0.484      
3 O -0.484      
4 C -0.121      
5 C -0.121      
6 C -0.308      
7 H 0.206      
8 H 0.157      
9 H 0.204      
10 H 0.148      
11 H 0.204      
12 H 0.148      
13 H 0.197      
14 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.261 2.824 0.000 3.093
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.676 2.255 0.000
y 2.255 -35.006 0.000
z 0.000 0.000 -41.179
Traceless
 xyz
x 2.417 2.255 0.000
y 2.255 3.421 0.000
z 0.000 0.000 -5.838
Polar
3z2-r2-11.675
x2-y2-0.669
xy2.255
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.683 0.378 0.000
y 0.378 6.761 0.000
z 0.000 0.000 6.202


<r2> (average value of r2) Å2
<r2> 142.239
(<r2>)1/2 11.926