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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-305.869804
Energy at 298.15K-305.880981
Nuclear repulsion energy261.091584
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 B3PW91/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3165 3037 26.61      
2 A' 3146 3018 20.75      
3 A' 3135 3008 13.87      
4 A' 3080 2955 14.65      
5 A' 2999 2878 90.96      
6 A' 2952 2832 77.31      
7 A' 1551 1488 12.97      
8 A' 1536 1474 0.01      
9 A' 1511 1450 8.00      
10 A' 1409 1352 10.83      
11 A' 1327 1273 3.36      
12 A' 1192 1143 7.80      
13 A' 1139 1093 112.70      
14 A' 1096 1051 25.84      
15 A' 988 948 42.99      
16 A' 897 861 3.89      
17 A' 829 795 8.41      
18 A' 620 595 6.94      
19 A' 477 458 1.27      
20 A' 417 400 13.67      
21 A' 267 256 2.67      
22 A" 3137 3009 33.22      
23 A" 2991 2870 19.48      
24 A" 1536 1474 3.64      
25 A" 1451 1392 2.93      
26 A" 1402 1345 1.62      
27 A" 1389 1333 3.52      
28 A" 1325 1271 0.01      
29 A" 1274 1223 14.99      
30 A" 1227 1178 6.49      
31 A" 1053 1010 3.62      
32 A" 1008 967 93.46      
33 A" 932 894 18.54      
34 A" 875 840 11.03      
35 A" 449 431 9.86      
36 A" 250 240 2.13      

Unscaled Zero Point Vibrational Energy (zpe) 27015.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 25919.1 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 B3PW91/3-21G*
ABC
0.16198 0.15561 0.08938

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.642 -1.221 0.000
O2 0.014 -0.779 1.203
O3 0.014 -0.779 -1.203
C4 0.014 0.685 1.247
C5 0.014 0.685 -1.247
C6 0.713 1.244 0.000
H7 -0.592 -2.309 0.000
H8 -1.690 -0.868 0.000
H9 0.535 0.958 2.167
H10 -1.023 1.061 1.289
H11 0.535 0.958 -2.167
H12 -1.023 1.061 -1.289
H13 1.756 0.908 0.000
H14 0.683 2.340 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.43981.43982.36982.36982.81281.08911.10583.29092.64853.29092.64853.20643.7994
O21.43982.40611.46412.85382.45512.03862.08792.05372.11383.82723.26652.70673.4092
O31.43982.40612.85381.46412.45512.03862.08793.82723.26652.05372.11382.70673.4092
C42.36981.46412.85382.49381.53513.29902.62121.09241.10373.46462.76512.15352.1777
C52.36982.85381.46412.49381.53513.29902.62123.46462.76511.09241.10372.15352.1777
C62.81282.45512.45511.53511.53513.78503.19972.19352.16982.19352.16981.09481.0968
H71.08912.03862.03863.29903.29903.78501.81114.07923.63384.07923.63383.98264.8206
H81.10582.08792.08792.62122.62123.19971.81113.60322.41463.60322.41463.87663.9906
H93.29092.05373.82721.09243.46462.19354.07923.60321.79124.33493.79232.48812.5749
H102.64852.11383.26651.10372.76512.16983.63382.41461.79123.79232.57753.06632.4908
H113.29093.82722.05373.46461.09242.19354.07923.60324.33493.79231.79122.48812.5749
H122.64853.26652.11382.76511.10372.16983.63382.41463.79232.57751.79123.06632.4908
H133.20642.70672.70672.15352.15351.09483.98263.87662.48813.06632.48813.06631.7892
H143.79943.40923.40922.17772.17771.09684.82063.99062.57492.49082.57492.49081.7892

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 109.384 C1 O3 C5 109.384
O2 C1 O3 113.347 O2 C1 H7 106.613
O2 C1 H8 109.510 O2 C4 C6 109.861
O2 C4 H9 105.978 O2 C4 H10 110.017
O3 C1 H7 106.613 O3 C1 H8 109.510
O3 C5 C6 109.861 O3 C5 H11 105.978
O3 C5 H12 110.017 C4 C6 C5 108.631
C4 C6 H13 108.787 C4 C6 H14 110.568
C5 C6 H13 108.787 C5 C6 H14 110.568
C6 C4 H9 112.095 C6 C4 H10 109.537
C6 C5 H11 112.095 C6 C5 H12 109.537
H7 C1 H8 111.207 H9 C4 H10 109.292
H11 C5 H12 109.292 H13 C6 H14 109.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 O -0.482      
3 O -0.482      
4 C -0.187      
5 C -0.187      
6 C -0.474      
7 H 0.245      
8 H 0.184      
9 H 0.237      
10 H 0.198      
11 H 0.237      
12 H 0.198      
13 H 0.248      
14 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.852 2.160 0.000 2.322
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.544 1.913 0.000
y 1.913 -34.515 0.000
z 0.000 0.000 -38.932
Traceless
 xyz
x 1.180 1.913 0.000
y 1.913 2.723 0.000
z 0.000 0.000 -3.903
Polar
3z2-r2-7.806
x2-y2-1.028
xy1.913
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.971 0.473 0.000
y 0.473 7.134 0.000
z 0.000 0.000 6.473


<r2> (average value of r2) Å2
<r2> 142.204
(<r2>)1/2 11.925