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

using model chemistry: B3LYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-307.682757
Energy at 298.15K-307.693943
Nuclear repulsion energy264.163202
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(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 Ag 3085 2977 0.00      
2 Ag 2970 2866 0.00      
3 Ag 1494 1442 0.00      
4 Ag 1423 1373 0.00      
5 Ag 1330 1283 0.00      
6 Ag 1149 1108 0.00      
7 Ag 1024 988 0.00      
8 Ag 852 822 0.00      
9 Ag 439 424 0.00      
10 Ag 411 397 0.00      
11 Au 3083 2975 94.42      
12 Au 2962 2858 46.47      
13 Au 1479 1427 0.01      
14 Au 1394 1345 21.65      
15 Au 1282 1237 43.07      
16 Au 1149 1109 178.47      
17 Au 1112 1073 3.61      
18 Au 894 863 16.58      
19 Au 245 237 0.83      
20 Bg 3083 2975 0.00      
21 Bg 2973 2869 0.00      
22 Bg 1478 1426 0.00      
23 Bg 1363 1315 0.00      
24 Bg 1239 1196 0.00      
25 Bg 1141 1101 0.00      
26 Bg 865 834 0.00      
27 Bg 488 471 0.00      
28 Bu 3084 2976 51.69      
29 Bu 2979 2875 161.72      
30 Bu 1488 1436 10.51      
31 Bu 1415 1365 5.01      
32 Bu 1321 1275 11.16      
33 Bu 1068 1030 10.03      
34 Bu 894 863 61.29      
35 Bu 608 587 11.21      
36 Bu 265 256 15.46      

Unscaled Zero Point Vibrational Energy (zpe) 26764.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25827.3 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 B3LYP/6-31G(2df,p)
ABC
0.16939 0.15637 0.09132

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.763 1.169
C2 0.000 0.763 -1.169
C3 0.000 -0.763 1.169
C4 0.000 -0.763 -1.169
O5 -0.632 -1.262 0.000
O6 0.632 1.262 0.000
H7 -1.039 1.129 1.226
H8 -1.039 1.129 -1.226
H9 1.039 -1.129 -1.226
H10 1.039 -1.129 1.226
H11 0.558 1.155 -2.025
H12 0.558 1.155 2.025
H13 -0.558 -1.155 -2.025
H14 -0.558 -1.155 2.025

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.33751.52572.79132.42221.41941.10292.63603.22392.15893.26541.09453.76672.1732
C22.33752.79131.52572.42221.41942.63601.10292.15893.22391.09453.26542.17323.7667
C31.52572.79132.33751.41942.42222.15893.22392.63601.10293.76672.17323.26541.0945
C42.79131.52572.33751.41942.42223.22392.15891.10292.63602.17323.76671.09453.2654
O52.42222.42221.41941.41942.82342.71812.71812.07652.07653.37053.37052.02872.0287
O61.41941.41942.42222.42222.82342.07652.07652.71812.71812.02872.02873.37053.3705
H71.10292.63602.15893.22392.71812.07652.45233.92783.06823.62191.78564.00192.4669
H82.63601.10293.22392.15892.71812.07652.45233.06823.92781.78563.62192.46694.0019
H93.22392.15892.63601.10292.07652.71813.92783.06822.45232.46694.00191.78563.6219
H102.15893.22391.10292.63602.07652.71813.06823.92782.45234.00192.46693.62191.7856
H113.26541.09453.76672.17323.37052.02873.62191.78562.46694.00194.04912.56614.7937
H121.09453.26542.17323.76673.37052.02871.78563.62194.00192.46694.04914.79372.5661
H133.76672.17323.26541.09452.02873.37054.00192.46691.78563.62192.56614.79374.0491
H142.17323.76671.09453.26542.02873.37052.46694.00193.62191.78564.79372.56614.0491

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 110.611 C1 C3 H10 109.385
C1 C3 H14 111.012 C1 O6 C2 110.855
C2 C4 O5 110.611 C2 C4 H9 109.385
C2 C4 H13 111.012 C3 C1 O6 110.611
C3 C1 H7 109.385 C3 C1 H12 111.012
C3 O5 C4 110.855 C4 C2 O6 110.611
C4 C2 H8 109.385 C4 C2 H11 111.012
O5 C3 H10 110.195 O5 C3 H14 106.896
O5 C4 H9 110.195 O5 C4 H13 106.896
O6 C1 H7 110.195 O6 C1 H12 106.896
O6 C2 H8 110.195 O6 C2 H11 106.896
H7 C1 H12 108.699 H8 C2 H11 108.699
H9 C4 H13 108.699 H10 C3 H14 108.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.076      
2 C -0.076      
3 C -0.076      
4 C -0.076      
5 O -0.248      
6 O -0.248      
7 H 0.093      
8 H 0.093      
9 H 0.093      
10 H 0.093      
11 H 0.107      
12 H 0.107      
13 H 0.107      
14 H 0.107      


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 -37.711 -2.842 0.000
y -2.842 -40.199 0.000
z 0.000 0.000 -31.051
Traceless
 xyz
x -2.086 -2.842 0.000
y -2.842 -5.818 0.000
z 0.000 0.000 7.904
Polar
3z2-r215.808
x2-y22.488
xy-2.842
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.568 -0.132 0.000
y -0.132 6.887 0.000
z 0.000 0.000 8.604


<r2> (average value of r2) Å2
<r2> 139.728
(<r2>)1/2 11.821