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

using model chemistry: B3LYP/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-59.357531
Energy at 298.15K-59.368651
Nuclear repulsion energy146.542842
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/CEP-121G*
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 3081 2986 0.00      
2 Ag 2974 2883 0.00      
3 Ag 1501 1455 0.00      
4 Ag 1425 1382 0.00      
5 Ag 1325 1284 0.00      
6 Ag 1141 1106 0.00      
7 Ag 1011 980 0.00      
8 Ag 833 808 0.00      
9 Ag 431 418 0.00      
10 Ag 409 397 0.00      
11 Au 3079 2985 134.09      
12 Au 2965 2875 63.03      
13 Au 1488 1442 0.22      
14 Au 1395 1352 28.36      
15 Au 1274 1235 38.61      
16 Au 1135 1101 191.30      
17 Au 1106 1072 9.92      
18 Au 880 853 21.50      
19 Au 242 234 1.26      
20 Bg 3079 2985 0.00      
21 Bg 2975 2884 0.00      
22 Bg 1484 1438 0.00      
23 Bg 1357 1316 0.00      
24 Bg 1235 1197 0.00      
25 Bg 1125 1091 0.00      
26 Bg 857 831 0.00      
27 Bg 476 461 0.00      
28 Bu 3080 2986 83.29      
29 Bu 2982 2890 215.67      
30 Bu 1494 1449 10.59      
31 Bu 1409 1366 6.77      
32 Bu 1313 1273 8.54      
33 Bu 1053 1021 8.74      
34 Bu 882 855 74.80      
35 Bu 601 583 13.89      
36 Bu 265 257 20.76      

Unscaled Zero Point Vibrational Energy (zpe) 26681.3 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 25864.8 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/CEP-121G*
ABC
0.16666 0.15339 0.08970

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.768 1.179
C2 0.000 0.768 -1.179
C3 0.000 -0.768 1.179
C4 0.000 -0.768 -1.179
O5 -0.644 -1.275 0.000
O6 0.644 1.275 0.000
H7 -1.039 1.139 1.229
H8 -1.039 1.139 -1.229
H9 1.039 -1.139 -1.229
H10 1.039 -1.139 1.229
H11 0.559 1.161 -2.038
H12 0.559 1.161 2.038
H13 -0.559 -1.161 -2.038
H14 -0.559 -1.161 2.038

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.35861.53572.81452.44561.43651.10462.64913.24312.17253.28871.09723.79232.1840
C22.35862.81451.53572.44561.43652.64911.10462.17253.24311.09723.28872.18403.7923
C31.53572.81452.35861.43652.44562.17253.24312.64911.10463.79232.18403.28871.0972
C42.81451.53572.35861.43652.44563.24312.17251.10462.64912.18403.79231.09723.2887
O52.44562.44561.43651.43652.85792.73822.73822.08872.08873.39653.39652.04252.0425
O61.43651.43652.44562.44562.85792.08872.08872.73822.73822.04252.04253.39653.3965
H71.10462.64912.17253.24312.73822.08872.45813.94383.08413.63671.79134.02402.4851
H82.64911.10463.24312.17252.73822.08872.45813.08413.94381.79133.63672.48514.0240
H93.24312.17252.64911.10462.08872.73823.94383.08412.45812.48514.02401.79133.6367
H102.17253.24311.10462.64912.08872.73823.08413.94382.45814.02402.48513.63671.7913
H113.28871.09723.79232.18403.39652.04253.63671.79132.48514.02404.07512.57734.8217
H121.09723.28872.18403.79233.39652.04251.79133.63674.02402.48514.07514.82172.5773
H133.79232.18403.28871.09722.04253.39654.02402.48511.79133.63672.57734.82174.0751
H142.18403.79231.09723.28872.04253.39652.48514.02403.63671.79134.82172.57734.0751

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 110.690 C1 C3 H10 109.659
C1 C3 H14 110.991 C1 O6 C2 110.360
C2 C4 O5 110.690 C2 C4 H9 109.659
C2 C4 H13 110.991 C3 C1 O6 110.690
C3 C1 H7 109.659 C3 C1 H12 110.991
C3 O5 C4 110.360 C4 C2 O6 110.690
C4 C2 H8 109.659 C4 C2 H11 110.991
O5 C3 H10 109.879 O5 C3 H14 106.672
O5 C4 H9 109.879 O5 C4 H13 106.672
O6 C1 H7 109.879 O6 C1 H12 106.672
O6 C2 H8 109.879 O6 C2 H11 106.672
H7 C1 H12 108.893 H8 C2 H11 108.893
H9 C4 H13 108.893 H10 C3 H14 108.893
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.154      
2 C -0.154      
3 C -0.154      
4 C -0.154      
5 O -0.296      
6 O -0.296      
7 H 0.128      
8 H 0.128      
9 H 0.128      
10 H 0.128      
11 H 0.173      
12 H 0.173      
13 H 0.173      
14 H 0.173      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.118 -0.180 0.000
y -0.180 7.312 0.000
z 0.000 0.000 9.098


<r2> (average value of r2) Å2
<r2> 118.043
(<r2>)1/2 10.865