return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H8O2 (1,3-Dioxane)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-307.609511
Energy at 298.15K-307.620834
Nuclear repulsion energy266.756492
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 B1B95/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3161 3035 30.93      
2 A' 3135 3010 27.54      
3 A' 3124 2999 26.63      
4 A' 3071 2948 19.27      
5 A' 2986 2867 113.50      
6 A' 2931 2814 87.83      
7 A' 1505 1445 6.17      
8 A' 1494 1434 1.17      
9 A' 1463 1405 7.17      
10 A' 1414 1358 16.01      
11 A' 1328 1275 7.02      
12 A' 1221 1172 144.30      
13 A' 1194 1146 55.69      
14 A' 1116 1072 9.76      
15 A' 1020 980 42.77      
16 A' 935 898 11.71      
17 A' 861 827 11.02      
18 A' 648 622 5.97      
19 A' 481 462 0.29      
20 A' 429 412 9.79      
21 A' 268 257 1.82      
22 A" 3132 3007 44.21      
23 A" 2980 2861 18.74      
24 A" 1493 1433 8.93      
25 A" 1447 1389 10.22      
26 A" 1391 1335 1.88      
27 A" 1371 1316 0.30      
28 A" 1344 1291 1.72      
29 A" 1264 1214 33.62      
30 A" 1236 1187 0.01      
31 A" 1102 1058 65.43      
32 A" 1049 1007 69.27      
33 A" 936 899 18.63      
34 A" 900 864 0.62      
35 A" 459 441 6.79      
36 A" 269 258 1.77      

Unscaled Zero Point Vibrational Energy (zpe) 27080.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 25999.9 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 B1B95/6-311G**
ABC
0.16931 0.16270 0.09344

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.622 -1.190 0.000
O2 0.017 -0.760 1.163
O3 0.017 -0.760 -1.163
C4 0.017 0.653 1.230
C5 0.017 0.653 -1.230
C6 0.691 1.235 0.000
H7 -0.596 -2.276 0.000
H8 -1.665 -0.826 0.000
H9 0.530 0.924 2.150
H10 -1.021 1.015 1.295
H11 0.530 0.924 -2.150
H12 -1.021 1.015 -1.295
H13 1.744 0.952 0.000
H14 0.624 2.325 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.39441.39442.30642.30642.75801.08611.10503.22822.58813.22822.58813.19233.7299
O21.39442.32501.41482.77862.40552.00632.04552.01852.06003.75133.20372.69613.3525
O31.39442.32502.77861.41482.40552.00632.04553.75133.20372.01852.06002.69613.3525
C42.30641.41482.77862.45981.51843.23562.55531.08821.10053.42952.75332.14182.1627
C52.30642.77861.41482.45981.51843.23562.55533.42952.75331.08821.10052.14182.1627
C62.75802.40552.40551.51841.51843.73963.13042.17842.15732.17842.15731.09101.0921
H71.08612.00632.00633.23563.23563.73961.80194.01633.56204.01633.56203.98734.7603
H81.10502.04552.04552.55532.55533.13041.80193.53652.34113.53652.34113.84553.8950
H93.22822.01853.75131.08823.42952.17844.01633.53651.77394.30023.77912.46922.5682
H102.58812.06003.20371.10052.75332.15733.56202.34111.77393.77912.58943.05392.4695
H113.22823.75132.01853.42951.08822.17844.01633.53654.30023.77911.77392.46922.5682
H122.58813.20372.06002.75331.10052.15733.56202.34113.77912.58941.77393.05392.4695
H133.19232.69612.69612.14182.14181.09103.98733.84552.46923.05392.46923.05391.7720
H143.72993.35253.35252.16272.16271.09214.76033.89502.56822.46952.56822.46951.7720

picture of 1,3-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C4 110.368 C1 O3 C5 110.368
O2 C1 O3 112.959 O2 C1 H7 107.306
O2 C1 H8 109.302 O2 C4 C6 110.138
O2 C4 H9 106.775 O2 C4 H10 109.328
O3 C1 H7 107.306 O3 C1 H8 109.302
O3 C5 C6 110.138 O3 C5 H11 106.775
O3 C5 H12 109.328 C4 C6 C5 108.184
C4 C6 H13 109.231 C4 C6 H14 110.820
C5 C6 H13 109.231 C5 C6 H14 110.820
C6 C4 H9 112.332 C6 C4 H10 109.890
C6 C5 H11 112.332 C6 C5 H12 109.890
H7 C1 H8 110.641 H9 C4 H10 108.284
H11 C5 H12 108.284 H13 C6 H14 108.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.113      
2 O -0.343      
3 O -0.343      
4 C -0.097      
5 C -0.097      
6 C -0.253      
7 H 0.134      
8 H 0.101      
9 H 0.137      
10 H 0.118      
11 H 0.137      
12 H 0.118      
13 H 0.148      
14 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.700 1.904 0.000 2.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.874 1.724 0.000
y 1.724 -34.863 0.000
z 0.000 0.000 -38.719
Traceless
 xyz
x 0.917 1.724 0.000
y 1.724 2.434 0.000
z 0.000 0.000 -3.351
Polar
3z2-r2-6.701
x2-y2-1.011
xy1.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.934 0.478 0.000
y 0.478 7.764 0.000
z 0.000 0.000 7.335


<r2> (average value of r2) Å2
<r2> 137.520
(<r2>)1/2 11.727