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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-307.436484
Energy at 298.15K-307.448224
Nuclear repulsion energy264.318625
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3149 3024 36.66      
2 A' 3119 2995 31.98      
3 A' 3105 2982 28.18      
4 A' 3057 2936 21.92      
5 A' 2982 2863 115.35      
6 A' 2932 2816 77.18      
7 A' 1540 1479 4.58      
8 A' 1526 1465 0.05      
9 A' 1499 1439 3.85      
10 A' 1431 1374 27.01      
11 A' 1331 1278 5.45      
12 A' 1219 1171 61.64      
13 A' 1188 1141 117.10      
14 A' 1124 1080 24.49      
15 A' 1014 974 37.81      
16 A' 918 881 11.75      
17 A' 850 816 11.94      
18 A' 652 626 4.38      
19 A' 493 473 0.48      
20 A' 431 414 10.20      
21 A' 266 256 1.88      
22 A" 3116 2992 48.85      
23 A" 2973 2855 20.59      
24 A" 1524 1464 3.24      
25 A" 1464 1406 20.15      
26 A" 1404 1348 0.36      
27 A" 1385 1330 0.16      
28 A" 1345 1291 0.96      
29 A" 1267 1217 29.04      
30 A" 1242 1192 0.12      
31 A" 1073 1031 53.94      
32 A" 1033 992 79.10      
33 A" 925 888 22.21      
34 A" 901 866 1.47      
35 A" 464 446 7.06      
36 A" 261 251 1.77      

Unscaled Zero Point Vibrational Energy (zpe) 27102.1 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 26026.2 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/6-31G*
ABC
0.16617 0.15959 0.09139

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.617 -1.212 0.000
O2 0.016 -0.765 1.175
O3 0.016 -0.765 -1.175
C4 0.016 0.660 1.244
C5 0.016 0.660 -1.244
C6 0.682 1.254 0.000
H7 -0.557 -2.301 0.000
H8 -1.675 -0.882 0.000
H9 0.548 0.925 2.162
H10 -1.022 1.028 1.330
H11 0.548 0.925 -2.162
H12 -1.022 1.028 -1.330
H13 1.746 0.990 0.000
H14 0.598 2.348 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.40721.40722.33512.33512.78701.09121.10823.25532.63613.25532.63613.22973.7616
O21.40722.35001.42692.80792.42922.01712.06232.02822.07743.77843.25092.73043.3782
O31.40722.35002.80791.42692.42922.01712.06233.77843.25092.02822.07742.73043.3782
C42.33511.42692.80792.48871.53143.26292.60511.09351.10463.45822.80042.15652.1766
C52.33512.80791.42692.48871.53143.26292.60513.45822.80041.09351.10462.15652.1766
C62.78702.42922.42921.53141.53143.76503.18132.19142.17412.19142.17411.09581.0975
H71.09122.01712.01713.26293.26293.76501.80644.03783.61494.03783.61494.01714.7909
H81.10822.06232.06232.60512.60513.18131.80643.58922.41743.58922.41743.89983.9503
H93.25532.02823.77841.09353.45822.19144.03783.58921.77994.32483.83082.47302.5893
H102.63612.07743.25091.10462.80042.17413.61492.41741.77993.83082.66083.07152.4780
H113.25533.77842.02823.45821.09352.19144.03783.58924.32483.83081.77992.47302.5893
H122.63613.25092.07742.80041.10462.17413.61492.41743.83082.66081.77993.07152.4780
H133.22972.73042.73042.15652.15651.09584.01713.89982.47303.07152.47303.07151.7779
H143.76163.37823.37822.17662.17661.09754.79093.95032.58932.47802.58932.47801.7779

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 110.954 C1 O3 C5 110.954
O2 C1 O3 113.224 O2 C1 H7 106.995
O2 C1 H8 109.567 O2 C4 C6 110.351
O2 C4 H9 106.411 O2 C4 H10 109.638
O3 C1 H7 106.995 O3 C1 H8 109.567
O3 C5 C6 110.351 O3 C5 H11 106.411
O3 C5 H12 109.638 C4 C6 C5 108.691
C4 C6 H13 109.216 C4 C6 H14 110.688
C5 C6 H13 109.216 C5 C6 H14 110.688
C6 C4 H9 112.120 C6 C4 H10 110.079
C6 C5 H11 112.120 C6 C5 H12 110.079
H7 C1 H8 110.430 H9 C4 H10 108.141
H11 C5 H12 108.141 H13 C6 H14 108.315
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.177      
2 O -0.458      
3 O -0.458      
4 C -0.043      
5 C -0.043      
6 C -0.283      
7 H 0.156      
8 H 0.107      
9 H 0.154      
10 H 0.121      
11 H 0.154      
12 H 0.121      
13 H 0.159      
14 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.649 1.872 0.000 1.982
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 139.826
(<r2>)1/2 11.825