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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-307.532866
Energy at 298.15K-307.544071
Nuclear repulsion energy265.520734
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 B1B95/6-31G**
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 3123 2981 0.00      
2 Ag 3003 2867 0.00      
3 Ag 1500 1432 0.00      
4 Ag 1434 1370 0.00      
5 Ag 1339 1279 0.00      
6 Ag 1149 1097 0.00      
7 Ag 1046 999 0.00      
8 Ag 871 832 0.00      
9 Ag 428 408 0.00      
10 Ag 418 399 0.00      
11 Au 3121 2980 87.67      
12 Au 2997 2861 47.03      
13 Au 1483 1416 0.11      
14 Au 1400 1337 28.37      
15 Au 1292 1233 55.29      
16 Au 1188 1134 169.86      
17 Au 1111 1061 2.49      
18 Au 910 869 14.57      
19 Au 251 240 1.10      
20 Bg 3121 2980 0.00      
21 Bg 3007 2871 0.00      
22 Bg 1480 1414 0.00      
23 Bg 1358 1297 0.00      
24 Bg 1244 1188 0.00      
25 Bg 1177 1124 0.00      
26 Bg 870 830 0.00      
27 Bg 482 460 0.00      
28 Bu 3122 2981 52.35      
29 Bu 3011 2875 161.62      
30 Bu 1493 1425 12.81      
31 Bu 1414 1350 4.95      
32 Bu 1327 1267 11.30      
33 Bu 1073 1024 10.31      
34 Bu 919 877 67.11      
35 Bu 597 570 13.20      
36 Bu 273 261 18.21      

Unscaled Zero Point Vibrational Energy (zpe) 27013.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 25792.9 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 B1B95/6-31G**
ABC
0.17163 0.15771 0.09258

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 1.159
C2 0.000 0.758 -1.159
C3 0.000 -0.758 1.159
C4 0.000 -0.758 -1.159
O5 -0.643 -1.252 0.000
O6 0.643 1.252 0.000
H7 -1.039 1.122 1.200
H8 -1.039 1.122 -1.200
H9 1.039 -1.122 -1.200
H10 1.039 -1.122 1.200
H11 0.545 1.153 -2.020
H12 0.545 1.153 2.020
H13 -0.545 -1.153 -2.020
H14 -0.545 -1.153 2.020

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.31751.51622.76942.40721.41401.10132.60333.19032.14803.24901.09283.74862.1657
C22.31752.76941.51622.40721.41402.60331.10132.14803.19031.09283.24902.16573.7486
C31.51622.76942.31751.41402.40722.14803.19032.60331.10133.74862.16573.24901.0928
C42.76941.51622.31751.41402.40723.19032.14801.10132.60332.16573.74861.09283.2490
O52.40722.40721.41401.41402.81402.68882.68882.07022.07023.35733.35732.02472.0247
O61.41401.41402.40722.40722.81402.07022.07022.68882.68882.02472.02473.35733.3573
H71.10132.60332.14803.19032.68882.07022.40093.88743.05743.58871.78333.97332.4675
H82.60331.10133.19032.14802.68882.07022.40093.05743.88741.78333.58872.46753.9733
H93.19032.14802.60331.10132.07022.68883.88743.05742.40092.46753.97331.78333.5887
H102.14803.19031.10132.60332.07022.68883.05743.88742.40093.97332.46753.58871.7833
H113.24901.09283.74862.16573.35732.02473.58871.78332.46753.97334.03972.55024.7773
H121.09283.24902.16573.74863.35732.02471.78333.58873.97332.46754.03974.77732.5502
H133.74862.16573.24901.09282.02473.35733.97332.46751.78333.58872.55024.77734.0397
H142.16573.74861.09283.24902.02473.35732.46753.97333.58871.78334.77732.55024.0397

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 110.424 C1 C3 H10 109.270
C1 C3 H14 111.176 C1 O6 C2 110.065
C2 C4 O5 110.424 C2 C4 H9 109.270
C2 C4 H13 111.176 C3 C1 O6 110.424
C3 C1 H7 109.270 C3 C1 H12 111.176
C3 O5 C4 110.065 C4 C2 O6 110.424
C4 C2 H8 109.270 C4 C2 H11 111.176
O5 C3 H10 110.161 O5 C3 H14 107.040
O5 C4 H9 110.161 O5 C4 H13 107.040
O6 C1 H7 110.161 O6 C1 H12 107.040
O6 C2 H8 110.161 O6 C2 H11 107.040
H7 C1 H12 108.735 H8 C2 H11 108.735
H9 C4 H13 108.735 H10 C3 H14 108.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.006      
2 C 0.006      
3 C 0.006      
4 C 0.006      
5 O -0.481      
6 O -0.481      
7 H 0.111      
8 H 0.111      
9 H 0.111      
10 H 0.111      
11 H 0.124      
12 H 0.124      
13 H 0.124      
14 H 0.124      


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 -37.872 -3.051 0.000
y -3.051 -40.224 0.000
z 0.000 0.000 -30.323
Traceless
 xyz
x -2.599 -3.051 0.000
y -3.051 -6.126 0.000
z 0.000 0.000 8.725
Polar
3z2-r217.449
x2-y22.352
xy-3.051
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.378 -0.147 0.000
y -0.147 6.567 0.000
z 0.000 0.000 8.302


<r2> (average value of r2) Å2
<r2> 138.200
(<r2>)1/2 11.756