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

using model chemistry: HSEh1PBE/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 HSEh1PBE/3-21G
 hartrees
Energy at 0K-305.660316
Energy at 298.15K-305.671551
HF Energy-305.660316
Nuclear repulsion energy261.672326
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 HSEh1PBE/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' 3181 3064 25.15      
2 A' 3161 3045 18.36      
3 A' 3151 3035 13.12      
4 A' 3095 2981 12.97      
5 A' 3012 2902 87.17      
6 A' 2967 2858 73.68      
7 A' 1555 1498 13.49      
8 A' 1540 1484 0.02      
9 A' 1514 1458 8.62      
10 A' 1416 1364 10.70      
11 A' 1334 1285 3.16      
12 A' 1199 1155 8.47      
13 A' 1151 1109 122.97      
14 A' 1103 1063 19.33      
15 A' 996 960 43.30      
16 A' 907 874 3.61      
17 A' 837 807 8.23      
18 A' 625 602 7.21      
19 A' 481 463 1.33      
20 A' 422 407 14.06      
21 A' 270 260 2.71      
22 A" 3152 3036 31.19      
23 A" 3004 2894 18.15      
24 A" 1540 1483 4.25      
25 A" 1457 1403 2.63      
26 A" 1408 1356 1.89      
27 A" 1395 1344 3.58      
28 A" 1331 1283 0.00      
29 A" 1281 1234 15.91      
30 A" 1234 1188 6.82      
31 A" 1067 1027 7.31      
32 A" 1022 984 91.22      
33 A" 938 903 16.78      
34 A" 885 853 10.23      
35 A" 453 436 9.93      
36 A" 253 244 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 27166.4 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 26169.4 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 HSEh1PBE/3-21G
ABC
0.16266 0.15643 0.08983

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.614 -1.243 0.000
O2 0.014 -0.771 1.184
O3 0.014 -0.771 -1.184
C4 0.014 0.668 1.249
C5 0.014 0.668 -1.249
C6 0.682 1.273 0.000
H7 -0.542 -2.330 0.000
H8 -1.679 -0.932 0.000
H9 0.555 0.951 2.156
H10 -1.013 1.069 1.323
H11 0.555 0.951 -2.156
H12 -1.013 1.069 -1.323
H13 1.741 0.998 0.000
H14 0.588 2.364 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.42081.42082.36852.36852.83041.08891.11023.29052.69363.29052.69363.25103.8021
O21.42082.36751.44092.82702.45472.03492.07252.04982.11213.79603.27462.74103.3997
O31.42082.36752.82701.44092.45472.03492.07253.79603.27462.04982.11212.74103.3997
C42.36851.44092.82702.49861.54043.29552.64391.09281.10543.45942.79842.15672.1828
C52.36852.82701.44092.49861.54043.29552.64393.45942.79841.09281.10542.15672.1828
C62.83042.45472.45471.54041.54043.80523.23112.18352.16032.18352.16031.09361.0951
H71.08892.03492.03493.29553.29553.80521.80214.07603.67754.07603.67754.03594.8279
H81.11022.07252.07252.64392.64393.23111.80213.63122.48933.63122.48933.92744.0005
H93.29052.04983.79601.09283.45942.18354.07603.63121.78034.31173.81762.46092.5781
H102.69362.11213.27461.10542.79842.16033.67752.48931.78033.81762.64513.05632.4476
H113.29053.79602.04983.45941.09282.18354.07603.63124.31173.81761.78032.46092.5781
H122.69363.27462.11212.79841.10542.16033.67752.48933.81762.64511.78033.05632.4476
H133.25102.74102.74102.15672.15671.09364.03593.92742.46093.05632.46093.05631.7873
H143.80213.39973.39972.18282.18281.09514.82794.00052.57812.44762.57812.44761.7873

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 111.717 C1 O3 C5 111.717
O2 C1 O3 112.855 O2 C1 H7 107.619
O2 C1 H8 109.327 O2 C4 C6 110.799
O2 C4 H9 107.197 O2 C4 H10 111.410
O3 C1 H7 107.619 O3 C1 H8 109.327
O3 C5 C6 110.799 O3 C5 H11 107.197
O3 C5 H12 111.410 C4 C6 C5 108.395
C4 C6 H13 108.746 C4 C6 H14 110.703
C5 C6 H13 108.746 C5 C6 H14 110.703
C6 C4 H9 110.895 C6 C4 H10 108.352
C6 C5 H11 110.895 C6 C5 H12 108.352
H7 C1 H8 110.052 H9 C4 H10 108.170
H11 C5 H12 108.170 H13 C6 H14 109.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.057      
2 O -0.489      
3 O -0.489      
4 C -0.188      
5 C -0.188      
6 C -0.481      
7 H 0.247      
8 H 0.186      
9 H 0.240      
10 H 0.200      
11 H 0.240      
12 H 0.200      
13 H 0.251      
14 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.856 2.159 0.000 2.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.626 1.911 0.000
y 1.911 -34.575 0.000
z 0.000 0.000 -39.026
Traceless
 xyz
x 1.174 1.911 0.000
y 1.911 2.752 0.000
z 0.000 0.000 -3.926
Polar
3z2-r2-7.852
x2-y2-1.052
xy1.911
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.930 0.465 0.000
y 0.465 7.075 0.000
z 0.000 0.000 6.421


<r2> (average value of r2) Å2
<r2> 141.702
(<r2>)1/2 11.904