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

using model chemistry: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-304.397762
Energy at 298.15K-304.408962
Nuclear repulsion energy262.883437
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/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' 3078 3028 18.47      
2 A' 3073 3023 9.08      
3 A' 3059 3009 11.47      
4 A' 3008 2959 8.78      
5 A' 2888 2840 80.06      
6 A' 2817 2770 80.91      
7 A' 1476 1452 21.09      
8 A' 1460 1436 1.66      
9 A' 1445 1421 14.82      
10 A' 1360 1338 6.61      
11 A' 1288 1267 3.17      
12 A' 1158 1139 4.67      
13 A' 1129 1110 134.32      
14 A' 1075 1057 5.30      
15 A' 980 964 41.05      
16 A' 905 890 3.69      
17 A' 831 818 6.83      
18 A' 611 601 7.25      
19 A' 470 462 1.69      
20 A' 441 434 11.02      
21 A' 281 276 2.79      
22 A" 3059 3009 24.11      
23 A" 2879 2832 13.83      
24 A" 1467 1443 9.79      
25 A" 1400 1377 0.40      
26 A" 1353 1331 2.67      
27 A" 1342 1320 2.78      
28 A" 1283 1262 0.03      
29 A" 1238 1218 16.30      
30 A" 1189 1169 5.35      
31 A" 1052 1035 3.61      
32 A" 996 980 100.67      
33 A" 915 900 17.54      
34 A" 879 864 6.09      
35 A" 447 440 9.38      
36 A" 267 263 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 26297.8 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 25866.6 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/3-21G
ABC
0.16490 0.15778 0.09122

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.643 -1.197 0.000
O2 0.015 -0.775 1.195
O3 0.015 -0.775 -1.195
C4 0.015 0.676 1.232
C5 0.015 0.676 -1.232
C6 0.722 1.222 0.000
H7 -0.634 -2.296 0.000
H8 -1.692 -0.799 0.000
H9 0.514 0.966 2.170
H10 -1.035 1.056 1.239
H11 0.514 0.966 -2.170
H12 -1.035 1.056 -1.239
H13 1.765 0.860 0.000
H14 0.716 2.327 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.42821.42822.33572.33572.77761.09921.12133.27502.60053.27502.60053.16703.7769
O21.42822.39071.45092.82742.43252.04032.08352.05692.11113.82163.22182.67683.3976
O31.42822.39072.82741.45092.43252.04032.08353.82163.22182.05692.11112.67683.3976
C42.33571.45092.82742.46351.52193.28132.56941.10171.11703.45012.71132.14802.1764
C52.33572.82741.45092.46351.52193.28132.56943.45012.71131.10171.11702.14802.1764
C62.77762.43252.43251.52191.52193.77023.14792.19462.15672.19462.15671.10381.1052
H71.09922.04032.04033.28133.28133.77021.83334.08253.59594.08253.59593.96414.8161
H81.12132.08352.08352.56942.56943.14791.83333.56202.32473.56202.32473.83383.9454
H93.27502.05693.82161.10173.45012.19464.08253.56201.80994.33933.74532.50662.5691
H102.60052.11113.22181.11702.71132.15673.59592.32471.80993.74532.47763.06832.4935
H113.27503.82162.05693.45011.10172.19464.08253.56204.33933.74531.80992.50662.5691
H122.60053.22182.11112.71131.11702.15673.59592.32473.74532.47761.80993.06832.4935
H133.16702.67682.67682.14802.14801.10383.96413.83382.50663.06832.50663.06831.8037
H143.77693.39763.39762.17642.17641.10524.81613.94542.56912.49352.56912.49351.8037

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 108.434 C1 O3 C5 108.434
O2 C1 O3 113.640 O2 C1 H7 106.936
O2 C1 H8 109.021 O2 C4 C6 109.799
O2 C4 H9 106.573 O2 C4 H10 109.914
O3 C1 H7 106.936 O3 C1 H8 109.021
O3 C5 C6 109.799 O3 C5 H11 106.573
O3 C5 H12 109.914 C4 C6 C5 108.060
C4 C6 H13 108.741 C4 C6 H14 110.883
C5 C6 H13 108.741 C5 C6 H14 110.883
C6 C4 H9 112.553 C6 C4 H10 108.651
C6 C5 H11 112.553 C6 C5 H12 108.651
H7 C1 H8 111.290 H9 C4 H10 109.325
H11 C5 H12 109.325 H13 C6 H14 109.474
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 O -0.413      
3 O -0.413      
4 C -0.224      
5 C -0.224      
6 C -0.459      
7 H 0.247      
8 H 0.180      
9 H 0.238      
10 H 0.195      
11 H 0.238      
12 H 0.195      
13 H 0.247      
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
  -0.679 2.000 0.000 2.112
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.950 1.842 0.000
y 1.842 -34.724 0.000
z 0.000 0.000 -38.762
Traceless
 xyz
x 0.793 1.842 0.000
y 1.842 2.632 0.000
z 0.000 0.000 -3.425
Polar
3z2-r2-6.850
x2-y2-1.226
xy1.842
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.179 0.489 0.000
y 0.489 7.315 0.000
z 0.000 0.000 6.630


<r2> (average value of r2) Å2
<r2> 140.316
(<r2>)1/2 11.845