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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-307.162596
Energy at 298.15K-307.174595
Nuclear repulsion energy267.219876
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3325 3325 50.19      
2 A' 3285 3285 42.29      
3 A' 3256 3256 46.37      
4 A' 3207 3207 25.57      
5 A' 3164 3164 146.88      
6 A' 3135 3135 51.89      
7 A' 1671 1671 3.70      
8 A' 1650 1650 0.78      
9 A' 1611 1611 4.64      
10 A' 1552 1552 36.30      
11 A' 1441 1441 9.25      
12 A' 1343 1343 192.24      
13 A' 1307 1307 72.91      
14 A' 1220 1220 19.24      
15 A' 1099 1099 47.35      
16 A' 993 993 16.35      
17 A' 914 914 11.86      
18 A' 715 715 6.51      
19 A' 532 532 0.54      
20 A' 449 449 13.73      
21 A' 272 272 2.37      
22 A" 3282 3282 60.88      
23 A" 3153 3153 25.34      
24 A" 1648 1648 3.31      
25 A" 1593 1593 28.67      
26 A" 1526 1526 1.13      
27 A" 1497 1497 1.26      
28 A" 1465 1465 1.62      
29 A" 1380 1380 50.02      
30 A" 1344 1344 0.58      
31 A" 1225 1225 106.60      
32 A" 1124 1124 44.64      
33 A" 1003 1003 13.44      
34 A" 972 972 0.00      
35 A" 498 498 8.22      
36 A" 274 274 2.93      

Unscaled Zero Point Vibrational Energy (zpe) 29061.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 29061.0 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 CBS-Q
ABC
0.16762 0.15985 0.09222

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.599 -1.215 0.000
O2 0.013 -0.750 1.151
O3 0.013 -0.750 -1.151
C4 0.013 0.651 1.239
C5 0.013 0.651 -1.239
C6 0.671 1.253 0.000
H7 -0.514 -2.292 0.000
H8 -1.654 -0.922 0.000
H9 0.547 0.907 2.147
H10 -1.014 1.012 1.338
H11 0.547 0.907 -2.147
H12 -1.014 1.012 -1.338
H13 1.729 1.003 0.000
H14 0.575 2.337 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.38361.38362.32212.32212.77491.08081.09513.22882.63103.22882.63103.21523.7409
O21.38362.30131.40392.77052.40151.99512.03292.00592.04843.72913.21752.70953.3423
O31.38362.30132.77051.40392.40151.99512.03293.72913.21752.00592.04842.70953.3423
C42.32211.40392.77052.47891.52663.23692.60571.08391.09343.43802.79762.14592.1667
C52.32212.77051.40392.47891.52663.23692.60573.43802.79761.08391.09342.14592.1667
C62.77492.40152.40151.52661.52663.73773.18322.17832.16472.17832.16471.08761.0889
H71.08081.99511.99513.23693.23693.73771.78263.99643.60003.99643.60003.98614.7559
H81.09512.03292.03292.60572.60573.18321.78263.57782.43713.57782.43713.89233.9483
H93.22882.00593.72911.08393.43802.17833.99643.57781.76224.29433.82012.45272.5802
H102.63102.04843.21751.09342.79762.16473.60002.43711.76223.82012.67513.05212.4636
H113.22883.72912.00593.43801.08392.17833.99643.57784.29433.82011.76222.45272.5802
H122.63103.21752.04842.79761.09342.16473.60002.43713.82012.67511.76223.05212.4636
H133.21522.70952.70952.14592.14591.08763.98613.89232.45273.05212.45273.05211.7646
H143.74093.34233.34232.16672.16671.08894.75593.94832.58022.46362.58022.46361.7646

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 112.823 C1 O3 C5 112.823
O2 C1 O3 112.534 O2 C1 H7 107.471
O2 C1 H8 109.645 O2 C4 C6 109.997
O2 C4 H9 106.763 O2 C4 H10 109.593
O3 C1 H7 107.471 O3 C1 H8 109.645
O3 C5 C6 109.997 O3 C5 H11 106.763
O3 C5 H12 109.593 C4 C6 C5 108.563
C4 C6 H13 109.188 C4 C6 H14 110.766
C5 C6 H13 109.188 C5 C6 H14 110.766
C6 C4 H9 112.001 C6 C4 H10 110.326
C6 C5 H11 112.001 C6 C5 H12 110.326
H7 C1 H8 110.018 H9 C4 H10 108.065
H11 C5 H12 108.065 H13 C6 H14 108.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability