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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-305.979909
Energy at 298.15K-305.991065
Nuclear repulsion energy260.247467
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 B3LYP/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' 3156 3046 28.04      
2 A' 3135 3025 23.85      
3 A' 3124 3014 15.27      
4 A' 3072 2964 16.62      
5 A' 2995 2890 95.75      
6 A' 2948 2844 75.38      
7 A' 1558 1504 9.93      
8 A' 1543 1489 0.36      
9 A' 1522 1468 5.90      
10 A' 1412 1362 14.57      
11 A' 1325 1279 3.19      
12 A' 1192 1150 7.33      
13 A' 1131 1091 91.03      
14 A' 1089 1051 43.84      
15 A' 982 947 43.81      
16 A' 883 852 3.94      
17 A' 818 790 9.69      
18 A' 620 598 6.11      
19 A' 479 463 1.08      
20 A' 410 396 13.64      
21 A' 264 254 2.51      
22 A" 3128 3018 35.73      
23 A" 2987 2882 18.96      
24 A" 1544 1490 2.11      
25 A" 1452 1401 4.54      
26 A" 1406 1357 0.95      
27 A" 1391 1342 3.79      
28 A" 1320 1274 0.03      
29 A" 1273 1228 13.49      
30 A" 1226 1183 5.98      
31 A" 1036 1000 0.71      
32 A" 991 956 90.82      
33 A" 928 896 22.98      
34 A" 860 830 12.89      
35 A" 449 433 9.44      
36 A" 244 236 2.14      

Unscaled Zero Point Vibrational Energy (zpe) 26945.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 25999.9 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 B3LYP/3-21G
ABC
0.16069 0.15468 0.08862

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.640 -1.232 0.000
O2 0.013 -0.780 1.207
O3 0.013 -0.780 -1.207
C4 0.013 0.689 1.252
C5 0.013 0.689 -1.252
C6 0.711 1.252 0.000
H7 -0.573 -2.319 0.000
H8 -1.692 -0.896 0.000
H9 0.539 0.959 2.170
H10 -1.021 1.066 1.301
H11 0.539 0.959 -2.170
H12 -1.021 1.066 -1.301
H13 1.754 0.922 0.000
H14 0.675 2.347 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.44491.44492.38432.38432.82751.08831.10453.30122.66833.30122.66833.21993.8132
O21.44492.41411.46952.86462.46422.04142.09252.05592.11833.83453.28172.71703.4168
O31.44492.41412.86461.46952.46422.04142.09253.83453.28172.05592.11832.71703.4168
C42.38431.46952.86462.50461.54013.30992.64361.09141.10243.47292.78082.15662.1810
C52.38432.86461.46952.50461.54013.30992.64363.47292.78081.09141.10242.15662.1810
C62.82752.46422.46421.54011.54013.79423.22312.19642.17442.19642.17441.09371.0958
H71.08832.04142.04143.30993.30993.79421.80954.08473.65354.08473.65353.98914.8297
H81.10452.09252.09252.64362.64363.22311.80953.62312.44813.62312.44813.89584.0154
H93.30122.05593.83451.09143.47292.19644.08473.62311.78924.33983.80722.48692.5797
H102.66832.11833.28171.10242.78082.17443.65352.44811.78923.80722.60233.06822.4925
H113.30123.83452.05593.47291.09142.19644.08473.62314.33983.80721.78922.48692.5797
H122.66833.28172.11832.78081.10242.17443.65352.44813.80722.60231.78923.06822.4925
H133.21992.71702.71702.15662.15661.09373.98913.89582.48693.06822.48693.06821.7872
H143.81323.41683.41682.18102.18101.09584.82974.01542.57972.49252.57972.49251.7872

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 109.782 C1 O3 C5 109.782
O2 C1 O3 113.303 O2 C1 H7 106.534
O2 C1 H8 109.603 O2 C4 C6 109.900
O2 C4 H9 105.846 O2 C4 H10 110.084
O3 C1 H7 106.534 O3 C1 H8 109.603
O3 C5 C6 109.900 O3 C5 H11 105.846
O3 C5 H12 110.084 C4 C6 C5 108.806
C4 C6 H13 108.752 C4 C6 H14 110.531
C5 C6 H13 108.752 C5 C6 H14 110.531
C6 C4 H9 112.026 C6 C4 H10 109.635
C6 C5 H11 112.026 C6 C5 H12 109.635
H7 C1 H8 111.212 H9 C4 H10 109.286
H11 C5 H12 109.286 H13 C6 H14 109.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.091      
2 O -0.479      
3 O -0.479      
4 C -0.143      
5 C -0.143      
6 C -0.422      
7 H 0.221      
8 H 0.165      
9 H 0.213      
10 H 0.177      
11 H 0.213      
12 H 0.177      
13 H 0.222      
14 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.831 2.116 0.000 2.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.736 1.864 0.000
y 1.864 -34.706 0.000
z 0.000 0.000 -39.085
Traceless
 xyz
x 1.160 1.864 0.000
y 1.864 2.704 0.000
z 0.000 0.000 -3.864
Polar
3z2-r2-7.728
x2-y2-1.029
xy1.864
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.953 0.483 0.000
y 0.483 7.180 0.000
z 0.000 0.000 6.486


<r2> (average value of r2) Å2
<r2> 143.208
(<r2>)1/2 11.967