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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-305.600237
Energy at 298.15K-305.611159
Nuclear repulsion energy258.691599
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 PBEPBE/3-21G
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 3043 3015 0.00      
2 Ag 2930 2904 0.00      
3 Ag 1481 1467 0.00      
4 Ag 1386 1374 0.00      
5 Ag 1281 1269 0.00      
6 Ag 1097 1087 0.00      
7 Ag 973 964 0.00      
8 Ag 809 802 0.00      
9 Ag 418 415 0.00      
10 Ag 388 384 0.00      
11 Au 3040 3013 65.53      
12 Au 2924 2898 41.41      
13 Au 1466 1453 1.08      
14 Au 1346 1334 25.67      
15 Au 1247 1236 17.62      
16 Au 1058 1048 24.80      
17 Au 1050 1040 87.09      
18 Au 856 848 15.81      
19 Au 225 223 1.81      
20 Bg 3041 3013 0.00      
21 Bg 2936 2909 0.00      
22 Bg 1468 1455 0.00      
23 Bg 1325 1312 0.00      
24 Bg 1199 1188 0.00      
25 Bg 1038 1029 0.00      
26 Bg 841 833 0.00      
27 Bg 448 444 0.00      
28 Bu 3043 3015 52.06      
29 Bu 2940 2913 141.76      
30 Bu 1476 1463 19.32      
31 Bu 1386 1374 0.32      
32 Bu 1274 1262 2.52      
33 Bu 1040 1031 7.88      
34 Bu 816 809 32.33      
35 Bu 564 559 13.61      
36 Bu 262 259 20.92      

Unscaled Zero Point Vibrational Energy (zpe) 26057.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 25819.9 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 PBEPBE/3-21G
ABC
0.16225 0.14997 0.08820

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.767 1.193
C2 0.000 0.767 -1.193
C3 0.000 -0.767 1.193
C4 0.000 -0.767 -1.193
O5 -0.707 -1.274 0.000
O6 0.707 1.274 0.000
H7 -1.052 1.123 1.205
H8 -1.052 1.123 -1.205
H9 1.052 -1.123 -1.205
H10 1.052 -1.123 1.205
H11 0.547 1.169 -2.062
H12 0.547 1.169 2.062
H13 -0.547 -1.169 -2.062
H14 -0.547 -1.169 2.062

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.38611.53372.83652.46741.47671.11052.64263.22952.16323.32511.10273.82662.1916
C22.38612.83651.53372.46741.47672.64261.11052.16323.22951.10273.32512.19163.8266
C31.53372.83652.38611.47672.46742.16323.22952.64261.11053.82662.19163.32511.1027
C42.83651.53372.38611.47672.46743.22952.16321.11052.64262.19163.82661.10273.3251
O52.46742.46741.47671.47672.91412.70512.70512.13732.13733.43423.43422.07092.0709
O61.47671.47672.46742.46742.91412.13732.13732.70512.70512.07092.07093.43423.4342
H71.11052.64262.16323.22952.70512.13732.40993.90903.07783.63731.81434.02302.4993
H82.64261.11053.22952.16322.70512.13732.40993.07783.90901.81433.63732.49934.0230
H93.22952.16322.64261.11052.13732.70513.90903.07782.40992.49934.02301.81433.6373
H102.16323.22951.11052.64262.13732.70513.07783.90902.40994.02302.49933.63731.8143
H113.32511.10273.82662.19163.43422.07093.63731.81432.49934.02304.12402.58184.8655
H121.10273.32512.19163.82663.43422.07091.81433.63734.02302.49934.12404.86552.5818
H133.82662.19163.32511.10272.07093.43424.02302.49931.81433.63732.58184.86554.1240
H142.19163.82661.10273.32512.07093.43422.49934.02303.63731.81434.86552.58184.1240

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 110.082 C1 C3 H10 108.730
C1 C3 H14 111.410 C1 O6 C2 107.787
C2 C4 O5 110.082 C2 C4 H9 108.730
C2 C4 H13 111.410 C3 C1 O6 110.082
C3 C1 H7 108.730 C3 C1 H12 111.410
C3 O5 C4 107.787 C4 C2 O6 110.082
C4 C2 H8 108.730 C4 C2 H11 111.410
O5 C3 H10 110.605 O5 C3 H14 105.892
O5 C4 H9 110.605 O5 C4 H13 105.892
O6 C1 H7 110.605 O6 C1 H12 105.892
O6 C2 H8 110.605 O6 C2 H11 105.892
H7 C1 H12 110.114 H8 C2 H11 110.114
H9 C4 H13 110.114 H10 C3 H14 110.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.211      
2 C -0.211      
3 C -0.211      
4 C -0.211      
5 O -0.415      
6 O -0.415      
7 H 0.203      
8 H 0.203      
9 H 0.203      
10 H 0.203      
11 H 0.216      
12 H 0.216      
13 H 0.216      
14 H 0.216      


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 -38.489 -3.388 0.000
y -3.388 -40.967 0.000
z 0.000 0.000 -30.107
Traceless
 xyz
x -2.952 -3.388 0.000
y -3.388 -6.669 0.000
z 0.000 0.000 9.621
Polar
3z2-r219.243
x2-y22.478
xy-3.388
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.092 -0.055 0.000
y -0.055 6.312 0.000
z 0.000 0.000 8.445


<r2> (average value of r2) Å2
<r2> 144.005
(<r2>)1/2 12.000