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All results from a given calculation for C4H8O2 (1,4-Dioxane)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at G3B3
 hartrees
Energy at 0K-307.427713
Energy at 298.15K-307.421403
Nuclear repulsion energy 
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3108 2984 0.00      
2 Ag 2994 2875 0.00      
3 Ag 1523 1462 0.00      
4 Ag 1444 1387 0.00      
5 Ag 1342 1289 0.00      
6 Ag 1160 1114 0.00      
7 Ag 1027 987 0.00      
8 Ag 854 820 0.00      
9 Ag 440 423 0.00      
10 Ag 418 401 0.00      
11 Au 3105 2982 98.72      
12 Au 2986 2867 46.35      
13 Au 1508 1449 0.01      
14 Au 1411 1355 29.17      
15 Au 1295 1244 39.43      
16 Au 1155 1109 180.02      
17 Au 1123 1078 7.21      
18 Au 899 864 19.20      
19 Au 250 240 1.13      
20 Bg 3105 2982 0.00      
21 Bg 2996 2877 0.00      
22 Bg 1507 1447 0.00      
23 Bg 1377 1322 0.00      
24 Bg 1251 1201 0.00      
25 Bg 1149 1103 0.00      
26 Bg 874 839 0.00      
27 Bg 490 471 0.00      
28 Bu 3106 2983 61.89      
29 Bu 3003 2884 176.97      
30 Bu 1517 1457 9.00      
31 Bu 1433 1377 7.40      
32 Bu 1331 1278 9.98      
33 Bu 1074 1031 10.01      
34 Bu 898 862 65.03      
35 Bu 615 590 13.11      
36 Bu 269 259 18.45      

Unscaled Zero Point Vibrational Energy (zpe) 27018.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 25945.6 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/6-31G*
ABC
0.16871 0.15595 0.09105

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.763 1.172
C2 0.000 0.763 -1.172
C3 0.000 -0.763 1.172
C4 0.000 -0.763 -1.172
O5 -0.636 -1.263 0.000
O6 0.636 1.263 0.000
H7 -1.038 1.131 1.225
H8 -1.038 1.131 -1.225
H9 1.038 -1.131 -1.225
H10 1.038 -1.131 1.225
H11 0.559 1.158 -2.026
H12 0.559 1.158 2.026
H13 -0.559 -1.158 -2.026
H14 -0.559 -1.158 2.026

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.34321.52552.79602.42531.42401.10302.63813.22652.16033.27021.09503.77202.1754
C22.34322.79601.52552.42531.42402.63811.10302.16033.22651.09503.27022.17543.7720
C31.52552.79602.34321.42402.42532.16033.22652.63811.10303.77202.17543.27021.0950
C42.79601.52552.34321.42402.42533.22652.16031.10302.63812.17543.77201.09503.2702
O52.42532.42531.42401.42402.82882.71942.71942.07932.07933.37593.37592.03032.0303
O61.42401.42402.42532.42532.82882.07932.07932.71942.71942.03032.03033.37593.3759
H71.10302.63812.16033.22652.71942.07932.45093.92883.07063.62291.78714.00532.4719
H82.63811.10303.22652.16032.71942.07932.45093.07063.92881.78713.62292.47194.0053
H93.22652.16032.63811.10302.07932.71943.92883.07062.45092.47194.00531.78713.6229
H102.16033.22651.10302.63812.07932.71943.07063.92882.45094.00532.47193.62291.7871
H113.27021.09503.77202.17543.37592.03033.62291.78712.47194.00534.05232.57194.7996
H121.09503.27022.17543.77203.37592.03031.78713.62294.00532.47194.05234.79962.5719
H133.77202.17543.27021.09502.03033.37594.00532.47191.78713.62292.57194.79964.0523
H142.17543.77201.09503.27022.03033.37592.47194.00533.62291.78714.79962.57194.0523

picture of 1,4-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 O5 110.576 C1 C3 H10 109.496
C1 C3 H14 111.161 C1 O6 C2 110.716
C2 C4 O5 110.576 C2 C4 H9 109.496
C2 C4 H13 111.161 C3 C1 O6 110.576
C3 C1 H7 109.496 C3 C1 H12 111.161
C3 O5 C4 110.716 C4 C2 O6 110.576
C4 C2 H8 109.496 C4 C2 H11 111.161
O5 C3 H10 110.091 O5 C3 H14 106.682
O5 C4 H9 110.091 O5 C4 H13 106.682
O6 C1 H7 110.091 O6 C1 H12 106.682
O6 C2 H8 110.091 O6 C2 H11 106.682
H7 C1 H12 108.786 H8 C2 H11 108.786
H9 C4 H13 108.786 H10 C3 H14 108.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.042 0.114   0.085
2 C -0.042 0.114   0.085
3 C -0.042 0.114   0.073
4 C -0.042 0.114   0.073
5 O -0.468 -0.377   -0.356
6 O -0.468 -0.377   -0.362
7 H 0.130 0.035   0.046
8 H 0.130 0.035   0.046
9 H 0.130 0.035   0.049
10 H 0.130 0.035   0.049
11 H 0.146 0.039   0.052
12 H 0.146 0.039   0.052
13 H 0.146 0.039   0.054
14 H 0.146 0.039   0.054


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP -0.001 0.008 0.000 0.008


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 140.131
(<r2>)1/2 11.838