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

using model chemistry: B1B95/CEP-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/CEP-31G
 hartrees
Energy at 0K-59.166914
Energy at 298.15K-59.177961
Nuclear repulsion energy145.274786
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/CEP-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 3164 3029 0.00      
2 Ag 3047 2917 0.00      
3 Ag 1491 1428 0.00      
4 Ag 1406 1346 0.00      
5 Ag 1308 1253 0.00      
6 Ag 1142 1093 0.00      
7 Ag 1037 993 0.00      
8 Ag 833 798 0.00      
9 Ag 417 399 0.00      
10 Ag 394 377 0.00      
11 Au 3156 3022 99.25      
12 Au 3044 2915 76.34      
13 Au 1482 1419 3.69      
14 Au 1382 1324 11.79      
15 Au 1262 1209 52.83      
16 Au 1147 1098 109.35      
17 Au 1101 1054 9.51      
18 Au 910 871 13.55      
19 Au 235 225 2.83      
20 Bg 3160 3025 0.00      
21 Bg 3052 2922 0.00      
22 Bg 1480 1417 0.00      
23 Bg 1365 1307 0.00      
24 Bg 1218 1167 0.00      
25 Bg 1130 1082 0.00      
26 Bg 863 827 0.00      
27 Bg 461 442 0.00      
28 Bu 3166 3031 84.62      
29 Bu 3053 2923 198.59      
30 Bu 1486 1423 24.57      
31 Bu 1405 1345 0.58      
32 Bu 1295 1240 4.47      
33 Bu 1051 1007 12.64      
34 Bu 854 817 49.80      
35 Bu 584 559 20.51      
36 Bu 263 252 32.99      

Unscaled Zero Point Vibrational Energy (zpe) 26921.6 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 25777.4 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/CEP-31G
ABC
0.16227 0.15177 0.08823

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.771 1.197
C2 0.000 0.771 -1.197
C3 0.000 -0.771 1.197
C4 0.000 -0.771 -1.197
O5 -0.666 -1.274 0.000
O6 0.666 1.274 0.000
H7 -1.041 1.145 1.230
H8 -1.041 1.145 -1.230
H9 1.041 -1.145 -1.230
H10 1.041 -1.145 1.230
H11 0.560 1.172 -2.054
H12 0.560 1.172 2.054
H13 -0.560 -1.172 -2.054
H14 -0.560 -1.172 2.054

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.39491.54132.84802.46141.45981.10702.66813.26322.18053.32331.09903.82832.1953
C22.39492.84801.54132.46141.45982.66811.10702.18053.26321.09903.32332.19533.8283
C31.54132.84802.39491.45982.46142.18053.26322.66811.10703.82832.19533.32331.0990
C42.84801.54132.39491.45982.46143.26322.18051.10702.66812.19533.82831.09903.3233
O52.46142.46141.45981.45982.87532.73982.73982.10832.10833.42093.42092.05892.0589
O61.45981.45982.46142.46142.87532.10832.10832.73982.73982.05892.05893.42093.4209
H71.10702.66812.18053.26322.73982.10832.46083.95423.09523.65391.80094.04762.5051
H82.66811.10703.26322.18052.73982.10832.46083.09523.95421.80093.65392.50514.0476
H93.26322.18052.66811.10702.10832.73983.95423.09522.46082.50514.04761.80093.6539
H102.18053.26321.10702.66812.10832.73983.09523.95422.46084.04762.50513.65391.8009
H113.32331.09903.82832.19533.42092.05893.65391.80092.50514.04764.10732.59744.8597
H121.09903.32332.19533.82833.42092.05891.80093.65394.04762.50514.10734.85972.5974
H133.82832.19533.32331.09902.05893.42094.04762.50511.80093.65392.59744.85974.1073
H142.19533.82831.09903.32332.05893.42092.50514.04763.65391.80094.85972.59744.1073

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 110.176 C1 C3 H10 109.764
C1 C3 H14 111.400 C1 O6 C2 110.234
C2 C4 O5 110.176 C2 C4 H9 109.764
C2 C4 H13 111.400 C3 C1 O6 110.176
C3 C1 H7 109.764 C3 C1 H12 111.400
C3 O5 C4 110.234 C4 C2 O6 110.176
C4 C2 H8 109.764 C4 C2 H11 111.400
O5 C3 H10 109.688 O5 C3 H14 106.299
O5 C4 H9 109.688 O5 C4 H13 106.299
O6 C1 H7 109.688 O6 C1 H12 106.299
O6 C2 H8 109.688 O6 C2 H11 106.299
H7 C1 H12 109.451 H8 C2 H11 109.451
H9 C4 H13 109.451 H10 C3 H14 109.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C -0.223      
3 C -0.223      
4 C -0.223      
5 O -0.244      
6 O -0.244      
7 H 0.143      
8 H 0.143      
9 H 0.143      
10 H 0.143      
11 H 0.203      
12 H 0.203      
13 H 0.203      
14 H 0.203      


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 -38.563 -5.001 0.000
y -5.001 -42.186 0.000
z 0.000 0.000 -28.701
Traceless
 xyz
x -3.120 -5.001 0.000
y -5.001 -8.553 0.000
z 0.000 0.000 11.674
Polar
3z2-r223.347
x2-y23.622
xy-5.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.768 0.011 0.000
y 0.011 6.276 0.000
z 0.000 0.000 7.691


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000