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

using model chemistry: HF/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-305.867427
Energy at 298.15K-305.879035
Nuclear repulsion energy267.698027
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(2df,p)
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' 3276 2966 49.79      
2 A' 3249 2942 45.43      
3 A' 3229 2923 45.73      
4 A' 3182 2881 23.22      
5 A' 3132 2836 128.56      
6 A' 3096 2803 57.66      
7 A' 1660 1504 2.86      
8 A' 1637 1482 0.72      
9 A' 1596 1445 4.58      
10 A' 1547 1400 31.99      
11 A' 1433 1298 9.38      
12 A' 1343 1216 188.12      
13 A' 1305 1182 65.54      
14 A' 1217 1102 16.29      
15 A' 1100 996 40.07      
16 A' 990 897 15.78      
17 A' 913 827 9.22      
18 A' 712 645 4.90      
19 A' 530 480 0.46      
20 A' 448 406 12.09      
21 A' 271 246 2.04      
22 A" 3245 2938 62.39      
23 A" 3122 2827 23.70      
24 A" 1635 1481 4.36      
25 A" 1586 1437 23.48      
26 A" 1518 1374 1.91      
27 A" 1493 1352 1.36      
28 A" 1456 1318 1.52      
29 A" 1372 1243 50.20      
30 A" 1336 1210 0.84      
31 A" 1223 1108 96.99      
32 A" 1122 1016 39.40      
33 A" 1004 909 10.55      
34 A" 968 876 0.01      
35 A" 498 451 7.97      
36 A" 274 248 2.30      

Unscaled Zero Point Vibrational Energy (zpe) 28858.1 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 26131.0 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(2df,p)
ABC
0.16971 0.16430 0.09352

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.599 -1.212 0.000
O2 0.014 -0.749 1.148
O3 0.014 -0.749 -1.148
C4 0.014 0.648 1.238
C5 0.014 0.648 -1.238
C6 0.668 1.251 0.000
H7 -0.520 -2.289 0.000
H8 -1.653 -0.918 0.000
H9 0.548 0.908 2.142
H10 -1.011 1.012 1.336
H11 0.548 0.908 -2.142
H12 -1.011 1.012 -1.336
H13 1.726 1.006 0.000
H14 0.568 2.333 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.38081.38082.31662.31662.76961.08031.09473.22492.62693.22492.62693.21273.7319
O21.38082.29601.40072.76502.39761.99332.03092.00572.04683.72293.21302.70753.3358
O31.38082.29602.76501.40072.39761.99332.03093.72293.21302.00572.04682.70753.3358
C42.31661.40072.76502.47521.52433.23192.60041.08251.09223.43172.79392.14282.1627
C52.31662.76501.40072.47521.52433.23192.60043.43172.79391.08251.09222.14282.1627
C62.76962.39762.39761.52431.52433.73433.17692.17282.15952.17282.15951.08581.0866
H71.08031.99331.99333.23193.23193.73431.77903.99433.59503.99433.59503.98764.7485
H81.09472.03092.03092.60042.60043.17691.77903.57352.43323.57352.43323.88823.9371
H93.22492.00573.72291.08253.43172.17283.99433.57351.75894.28453.81322.44662.5728
H102.62692.04683.21301.09222.79392.15953.59502.43321.75893.81322.67173.04602.4544
H113.22493.72292.00573.43171.08252.17283.99433.57354.28453.81321.75892.44662.5728
H122.62693.21302.04682.79391.09222.15953.59502.43323.81322.67171.75893.04602.4544
H133.21272.70752.70752.14282.14281.08583.98763.88822.44663.04602.44663.04601.7615
H143.73193.33583.33582.16272.16271.08664.74853.93712.57282.45442.57282.45441.7615

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 112.786 C1 O3 C5 112.786
O2 C1 O3 112.487 O2 C1 H7 107.554
O2 C1 H8 109.709 O2 C4 C6 110.037
O2 C4 H9 107.050 O2 C4 H10 109.763
O3 C1 H7 107.554 O3 C1 H8 109.709
O3 C5 C6 110.037 O3 C5 H11 107.050
O3 C5 H12 109.763 C4 C6 C5 108.566
C4 C6 H13 109.210 C4 C6 H14 110.736
C5 C6 H13 109.210 C5 C6 H14 110.736
C6 C4 H9 111.804 C6 C4 H10 110.149
C6 C5 H11 111.804 C6 C5 H12 110.149
H7 C1 H8 109.760 H9 C4 H10 107.960
H11 C5 H12 107.960 H13 C6 H14 108.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.182      
2 O -0.450      
3 O -0.450      
4 C -0.017      
5 C -0.017      
6 C -0.265      
7 H 0.147      
8 H 0.097      
9 H 0.143      
10 H 0.110      
11 H 0.143      
12 H 0.110      
13 H 0.143      
14 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.748 1.902 0.000 2.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.559 1.554 0.000
y 1.554 -34.777 0.000
z 0.000 0.000 -38.688
Traceless
 xyz
x 1.174 1.554 0.000
y 1.554 2.346 0.000
z 0.000 0.000 -3.520
Polar
3z2-r2-7.039
x2-y2-0.782
xy1.554
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.341 0.396 0.000
y 0.396 7.161 0.000
z 0.000 0.000 6.758


<r2> (average value of r2) Å2
<r2> 137.169
(<r2>)1/2 11.712