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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-305.609819
Energy at 298.15K-305.620862
Nuclear repulsion energy259.091638
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 PBEPBE/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' 3079 3051 26.66      
2 A' 3068 3040 19.91      
3 A' 3054 3026 14.23      
4 A' 3000 2972 16.88      
5 A' 2908 2881 94.34      
6 A' 2851 2825 81.72      
7 A' 1498 1485 12.56      
8 A' 1482 1469 0.53      
9 A' 1466 1453 8.14      
10 A' 1361 1349 11.15      
11 A' 1286 1274 3.16      
12 A' 1152 1141 4.58      
13 A' 1086 1076 76.37      
14 A' 1053 1043 44.72      
15 A' 950 942 39.44      
16 A' 870 862 3.10      
17 A' 800 793 8.46      
18 A' 596 590 5.54      
19 A' 461 457 1.03      
20 A' 417 414 11.91      
21 A' 264 261 2.25      
22 A" 3055 3027 34.75      
23 A" 2899 2872 19.90      
24 A" 1487 1473 3.37      
25 A" 1401 1388 2.56      
26 A" 1357 1345 0.64      
27 A" 1339 1327 3.72      
28 A" 1280 1268 0.07      
29 A" 1231 1220 11.70      
30 A" 1182 1171 5.40      
31 A" 1014 1005 0.12      
32 A" 939 931 83.89      
33 A" 900 892 27.27      
34 A" 841 834 14.66      
35 A" 436 432 8.58      
36 A" 250 247 1.82      

Unscaled Zero Point Vibrational Energy (zpe) 26156.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 25918.3 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 PBEPBE/3-21G
ABC
0.16007 0.15276 0.08822

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.656 -1.216 0.000
O2 0.015 -0.789 1.218
O3 0.015 -0.789 -1.218
C4 0.015 0.690 1.253
C5 0.015 0.690 -1.253
C6 0.726 1.245 0.000
H7 -0.627 -2.313 0.000
H8 -1.705 -0.835 0.000
H9 0.536 0.967 2.182
H10 -1.030 1.072 1.283
H11 0.536 0.967 -2.182
H12 -1.030 1.072 -1.283
H13 1.771 0.894 0.000
H14 0.705 2.350 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.45531.45532.37702.37702.82181.09811.11613.30882.65003.30882.65003.21593.8166
O21.45532.43691.47882.87952.47472.05442.10902.06972.13573.86263.28882.72003.4368
O31.45532.43692.87951.47882.47472.05442.10903.86263.28882.06972.13572.72003.4368
C42.37701.47882.87952.50511.54313.31632.61791.10101.11343.48512.76952.16632.1912
C52.37702.87951.47882.50511.54313.31632.61793.48512.76951.10101.11342.16632.1912
C62.82182.47472.47471.54311.54313.80613.19892.20802.18122.20802.18121.10281.1053
H71.09812.05442.05443.31633.31633.80611.83054.10793.64334.10793.64334.00424.8495
H81.11612.10902.10902.61792.61793.19891.83053.60992.39613.60992.39613.88243.9941
H93.30882.06973.86261.10103.48512.20804.10793.60991.80814.36453.80422.50882.5889
H102.65002.13573.28881.11342.76952.18123.64332.39611.80813.80422.56683.08592.5078
H113.30883.86262.06973.48511.10102.20804.10793.60994.36453.80421.80812.50882.5889
H122.65003.28882.13572.76951.11342.18123.64332.39613.80422.56681.80813.08592.5078
H133.21592.72002.72002.16632.16631.10284.00423.88242.50883.08592.50883.08591.8042
H143.81663.43683.43682.19122.19121.10534.84953.99412.58892.50782.58892.50781.8042

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 108.209 C1 O3 C5 108.209
O2 C1 O3 113.701 O2 C1 H7 106.296
O2 C1 H8 109.494 O2 C4 C6 109.929
O2 C4 H9 105.764 O2 C4 H10 110.151
O3 C1 H7 106.296 O3 C1 H8 109.494
O3 C5 C6 109.929 O3 C5 H11 105.764
O3 C5 H12 110.151 C4 C6 C5 108.522
C4 C6 H13 108.779 C4 C6 H14 110.564
C5 C6 H13 108.779 C5 C6 H14 110.564
C6 C4 H9 112.162 C6 C4 H10 109.314
C6 C5 H11 112.162 C6 C5 H12 109.314
H7 C1 H8 111.517 H9 C4 H10 109.471
H11 C5 H12 109.471 H13 C6 H14 109.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.009      
2 O -0.424      
3 O -0.424      
4 C -0.197      
5 C -0.197      
6 C -0.446      
7 H 0.233      
8 H 0.177      
9 H 0.226      
10 H 0.190      
11 H 0.226      
12 H 0.190      
13 H 0.236      
14 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.750 2.013 0.000 2.149
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.847 1.821 0.000
y 1.821 -34.793 0.000
z 0.000 0.000 -38.862
Traceless
 xyz
x 0.981 1.821 0.000
y 1.821 2.562 0.000
z 0.000 0.000 -3.542
Polar
3z2-r2-7.084
x2-y2-1.054
xy1.821
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.160 0.533 0.000
y 0.533 7.448 0.000
z 0.000 0.000 6.766


<r2> (average value of r2) Å2
<r2> 143.941
(<r2>)1/2 11.998