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: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-306.093536
Energy at 298.15K-306.104771
Nuclear repulsion energy266.538517
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 LSDA/6-31+G**
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' 3076 3029 16.52      
2 A' 3053 3008 15.10      
3 A' 3047 3001 16.53      
4 A' 2991 2946 14.20      
5 A' 2885 2842 100.32      
6 A' 2819 2777 89.33      
7 A' 1429 1408 9.89      
8 A' 1417 1395 4.84      
9 A' 1394 1373 11.21      
10 A' 1349 1329 12.06      
11 A' 1271 1252 6.12      
12 A' 1197 1179 179.48      
13 A' 1151 1134 12.10      
14 A' 1078 1062 3.61      
15 A' 1004 989 41.74      
16 A' 919 906 10.17      
17 A' 849 836 9.58      
18 A' 633 624 4.76      
19 A' 476 469 0.81      
20 A' 449 443 10.09      
21 A' 273 269 2.28      
22 A" 3051 3005 26.79      
23 A" 2878 2835 15.86      
24 A" 1417 1396 16.17      
25 A" 1372 1351 5.93      
26 A" 1331 1311 4.83      
27 A" 1309 1290 0.43      
28 A" 1284 1265 3.75      
29 A" 1216 1197 31.91      
30 A" 1184 1166 0.10      
31 A" 1090 1074 58.76      
32 A" 1026 1010 76.65      
33 A" 917 903 22.96      
34 A" 867 854 1.28      
35 A" 455 448 7.07      
36 A" 274 270 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 26216.1 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 25822.8 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 LSDA/6-31+G**
ABC
0.16946 0.16256 0.09354

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.617 -1.190 0.000
O2 0.018 -0.760 1.164
O3 0.018 -0.760 -1.164
C4 0.018 0.652 1.227
C5 0.018 0.652 -1.227
C6 0.686 1.232 0.000
H7 -0.596 -2.290 0.000
H8 -1.673 -0.811 0.000
H9 0.533 0.930 2.161
H10 -1.036 1.014 1.289
H11 0.533 0.930 -2.161
H12 -1.036 1.014 -1.289
H13 1.756 0.958 0.000
H14 0.612 2.335 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.39391.39392.30202.30202.75001.10061.12243.23792.58793.23792.58793.20053.7329
O21.39392.32801.41272.77622.40162.01872.05372.02812.06733.76483.20592.70653.3592
O31.39392.32802.77621.41272.40162.01872.05373.76483.20592.02812.06732.70653.3592
C42.30201.41272.77622.45341.51253.24622.55031.10221.11653.43772.75212.14942.1659
C52.30202.77621.41272.45341.51253.24622.55033.43772.75211.10221.11652.14942.1659
C62.75002.40162.40161.51251.51253.74843.12072.18722.16232.18722.16231.10481.1054
H71.10062.01872.01873.24623.24623.74841.83014.03903.57454.03903.57454.01044.7805
H81.12242.05372.05372.55032.55033.12071.83013.54482.32373.54482.32373.85863.8882
H93.23792.02813.76481.10223.43772.18724.03903.54481.79654.32163.79112.48332.5786
H102.58792.06733.20591.11652.75212.16233.57452.32371.79653.79112.57903.07622.4745
H113.23793.76482.02813.43771.10222.18724.03903.54484.32163.79111.79652.48332.5786
H122.58793.20592.06732.75211.11652.16233.57452.32373.79112.57901.79653.07622.4745
H133.20052.70652.70652.14942.14941.10484.01043.85862.48333.07622.48333.07621.7904
H143.73293.35923.35922.16592.16591.10544.78053.88822.57862.47452.57862.47451.7904

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 110.209 C1 O3 C5 110.209
O2 C1 O3 113.244 O2 C1 H7 107.464
O2 C1 H8 108.928 O2 C4 C6 110.320
O2 C4 H9 106.846 O2 C4 H10 109.086
O3 C1 H7 107.464 O3 C1 H8 108.928
O3 C5 C6 110.320 O3 C5 H11 106.846
O3 C5 H12 109.086 C4 C6 C5 108.393
C4 C6 H13 109.424 C4 C6 H14 110.688
C5 C6 H13 109.424 C5 C6 H14 110.688
C6 C4 H9 112.596 C6 C4 H10 109.751
C6 C5 H11 112.596 C6 C5 H12 109.751
H7 C1 H8 110.812 H9 C4 H10 108.135
H11 C5 H12 108.135 H13 C6 H14 108.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.037      
2 O -0.274      
3 O -0.274      
4 C -0.275      
5 C -0.275      
6 C -0.275      
7 H 0.175      
8 H 0.141      
9 H 0.183      
10 H 0.169      
11 H 0.183      
12 H 0.169      
13 H 0.208      
14 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.638 2.054 0.000 2.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.870 1.973 0.000
y 1.973 -35.648 0.000
z 0.000 0.000 -39.651
Traceless
 xyz
x 0.779 1.973 0.000
y 1.973 2.613 0.000
z 0.000 0.000 -3.392
Polar
3z2-r2-6.783
x2-y2-1.222
xy1.973
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.986 0.382 0.000
y 0.382 8.738 0.000
z 0.000 0.000 8.358


<r2> (average value of r2) Å2
<r2> 138.186
(<r2>)1/2 11.755