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

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-303.706517
Energy at 298.15K-303.717293
Nuclear repulsion energy256.118216
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/STO-3G
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 3396 3030 0.00      
2 Ag 3256 2906 0.00      
3 Ag 1636 1460 0.00      
4 Ag 1500 1339 0.00      
5 Ag 1386 1237 0.00      
6 Ag 1179 1052 0.00      
7 Ag 1060 946 0.00      
8 Ag 880 786 0.00      
9 Ag 478 426 0.00      
10 Ag 389 347 0.00      
11 Au 3395 3029 0.81      
12 Au 3257 2907 17.82      
13 Au 1631 1455 0.89      
14 Au 1469 1311 29.45      
15 Au 1322 1180 11.61      
16 Au 1190 1062 34.73      
17 Au 1133 1011 0.27      
18 Au 935 834 0.20      
19 Au 222 198 0.76      
20 Bg 3398 3032 0.00      
21 Bg 3263 2912 0.00      
22 Bg 1627 1452 0.00      
23 Bg 1424 1271 0.00      
24 Bg 1276 1139 0.00      
25 Bg 1199 1070 0.00      
26 Bg 909 811 0.00      
27 Bg 475 424 0.00      
28 Bu 3400 3034 12.34      
29 Bu 3263 2912 30.00      
30 Bu 1630 1454 2.24      
31 Bu 1505 1343 6.83      
32 Bu 1359 1213 9.19      
33 Bu 1102 984 8.44      
34 Bu 941 839 7.31      
35 Bu 610 545 5.27      
36 Bu 278 248 13.49      

Unscaled Zero Point Vibrational Energy (zpe) 28684.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 25598.0 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 B3LYP/STO-3G
ABC
0.16469 0.14139 0.08566

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.246 -0.749 1.178
C2 0.246 -0.749 -1.178
C3 -0.246 0.749 1.178
C4 -0.246 0.749 -1.178
O5 0.246 1.490 0.000
O6 -0.246 -1.490 0.000
H7 1.359 -0.765 1.228
H8 1.359 -0.765 -1.228
H9 -1.359 0.765 -1.228
H10 -1.359 0.765 1.228
H11 -0.157 -1.277 -2.067
H12 -0.157 -1.277 2.067
H13 0.157 1.277 -2.067
H14 0.157 1.277 2.067

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.35701.57652.83562.52981.47651.11452.65193.26522.20703.31251.10893.82652.2134
C22.35702.83561.57652.52981.47652.65191.11452.20703.26521.10893.31252.21343.8265
C31.57652.83562.35701.47652.52982.20703.26522.65191.11453.82652.21343.31251.1089
C42.83561.57652.35701.47652.52983.26522.20701.11452.65192.21343.82651.10893.3125
O52.52982.52981.47651.47653.01972.79832.79832.14762.14763.47653.47652.07972.0797
O61.47651.47652.52982.52983.01972.14762.14762.79832.79832.07972.07973.47653.4765
H71.11452.65192.20703.26522.79832.14762.45673.97073.11953.66311.80644.05852.5133
H82.65191.11453.26522.20702.79832.14762.45673.11953.97071.80643.66312.51334.0585
H93.26522.20702.65191.11452.14762.79833.97073.11952.45672.51334.05851.80643.6631
H102.20703.26521.11452.65192.14762.79833.11953.97072.45674.05852.51333.66311.8064
H113.31251.10893.82652.21343.47652.07973.66311.80642.51334.05854.13362.57224.8686
H121.10893.31252.21343.82653.47652.07971.80643.66314.05852.51334.13364.86862.5722
H133.82652.21343.31251.10892.07973.47654.05852.51331.80643.66312.57224.86864.1336
H142.21343.82651.10893.31252.07973.47652.51334.05853.66311.80644.86862.57224.1336

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 111.875 C1 C3 H10 108.992
C1 C3 H14 109.798 C1 O6 C2 105.912
C2 C4 O5 111.875 C2 C4 H9 108.992
C2 C4 H13 109.798 C3 C1 O6 111.875
C3 C1 H7 108.992 C3 C1 H12 109.798
C3 O5 C4 105.912 C4 C2 O6 111.875
C4 C2 H8 108.992 C4 C2 H11 109.798
O5 C3 H10 111.196 O5 C3 H14 106.233
O5 C4 H9 111.196 O5 C4 H13 106.233
O6 C1 H7 111.196 O6 C1 H12 106.233
O6 C2 H8 111.196 O6 C2 H11 106.233
H7 C1 H12 108.669 H8 C2 H11 108.669
H9 C4 H13 108.669 H10 C3 H14 108.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.057      
2 C -0.057      
3 C -0.057      
4 C -0.057      
5 O -0.190      
6 O -0.190      
7 H 0.070      
8 H 0.070      
9 H 0.070      
10 H 0.070      
11 H 0.082      
12 H 0.082      
13 H 0.082      
14 H 0.082      


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        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.556 -1.546 0.000
y -1.546 -38.895 0.000
z 0.000 0.000 -29.830
Traceless
 xyz
x 0.807 -1.546 0.000
y -1.546 -7.202 0.000
z 0.000 0.000 6.396
Polar
3z2-r212.791
x2-y25.339
xy-1.546
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.344 0.048 0.000
y 0.048 3.627 0.000
z 0.000 0.000 5.364


<r2> (average value of r2) Å2
<r2> 145.483
(<r2>)1/2 12.062