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All results from a given calculation for C4H8O2 (1,4-Dioxane)

using model chemistry: HF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/6-31G**
 hartrees
Energy at 0K-305.837541
Energy at 298.15K-305.849103
Nuclear repulsion energy266.743692
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 HF/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 Ag 3262 2944 0.00      
2 Ag 3168 2860 0.00      
3 Ag 1647 1487 0.00      
4 Ag 1580 1426 0.00      
5 Ag 1449 1308 0.00      
6 Ag 1265 1142 0.00      
7 Ag 1120 1011 0.00      
8 Ag 926 836 0.00      
9 Ag 469 423 0.00      
10 Ag 444 400 0.00      
11 Au 3258 2941 131.73      
12 Au 3158 2850 46.43      
13 Au 1630 1471 0.16      
14 Au 1538 1388 45.69      
15 Au 1403 1266 81.92      
16 Au 1294 1168 211.77      
17 Au 1218 1099 5.47      
18 Au 972 878 26.60      
19 Au 266 240 1.29      
20 Bg 3259 2941 0.00      
21 Bg 3165 2857 0.00      
22 Bg 1624 1466 0.00      
23 Bg 1491 1346 0.00      
24 Bg 1353 1221 0.00      
25 Bg 1285 1160 0.00      
26 Bg 946 854 0.00      
27 Bg 532 481 0.00      
28 Bu 3262 2944 91.95      
29 Bu 3174 2865 183.12      
30 Bu 1641 1481 6.38      
31 Bu 1553 1402 10.09      
32 Bu 1440 1300 16.34      
33 Bu 1159 1046 14.34      
34 Bu 990 894 86.70      
35 Bu 668 603 19.32      
36 Bu 288 260 26.26      

Unscaled Zero Point Vibrational Energy (zpe) 28947.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 26127.8 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 HF/6-31G**
ABC
0.17138 0.16060 0.09302

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.759 1.164
C2 0.000 0.759 -1.164
C3 0.000 -0.759 1.164
C4 0.000 -0.759 -1.164
O5 -0.616 -1.241 0.000
O6 0.616 1.241 0.000
H7 -1.024 1.126 1.224
H8 -1.024 1.126 -1.224
H9 1.024 -1.126 -1.224
H10 1.024 -1.126 1.224
H11 0.557 1.149 -2.007
H12 0.557 1.149 2.007
H13 -0.557 -1.149 -2.007
H14 -0.557 -1.149 2.007

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.32791.51762.77892.39461.40251.08982.62443.21002.14593.24331.08333.74232.1586
C22.32792.77891.51762.39461.40252.62441.08982.14593.21001.08333.24332.15863.7423
C31.51762.77892.32791.40252.39462.14593.21002.62441.08983.74232.15863.24331.0833
C42.77891.51762.32791.40252.39463.21002.14591.08982.62442.15863.74231.08333.2433
O52.39462.39461.40251.40252.77132.69612.69612.04992.04993.33413.33412.01032.0103
O61.40251.40252.39462.39462.77132.04992.04992.69612.69612.01032.01033.33413.3341
H71.08982.62442.14593.21002.69612.04992.44843.90663.04423.59781.76493.97912.4503
H82.62441.08983.21002.14592.69612.04992.44843.04423.90661.76493.59782.45033.9791
H93.21002.14592.62441.08982.04992.69613.90663.04422.44842.45033.97911.76493.5978
H102.14593.21001.08982.62442.04992.69613.04423.90662.44843.97912.45033.59781.7649
H113.24331.08333.74232.15863.33412.01033.59781.76492.45033.97914.01462.55314.7576
H121.08333.24332.15863.74233.33412.01031.76493.59783.97912.45034.01464.75762.5531
H133.74232.15863.24331.08332.01033.33413.97912.45031.76493.59782.55314.75764.0146
H142.15863.74231.08333.24332.01033.33412.45033.97913.59781.76494.75762.55314.0146

picture of 1,4-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 O5 110.123 C1 C3 H10 109.683
C1 C3 H14 111.086 C1 O6 C2 112.187
C2 C4 O5 110.123 C2 C4 H9 109.683
C2 C4 H13 111.086 C3 C1 O6 110.123
C3 C1 H7 109.683 C3 C1 H12 111.086
C3 O5 C4 112.187 C4 C2 O6 110.123
C4 C2 H8 109.683 C4 C2 H11 111.086
O5 C3 H10 110.042 O5 C3 H14 107.245
O5 C4 H9 110.042 O5 C4 H13 107.245
O6 C1 H7 110.042 O6 C1 H12 107.245
O6 C2 H8 110.042 O6 C2 H11 107.245
H7 C1 H12 108.618 H8 C2 H11 108.618
H9 C4 H13 108.618 H10 C3 H14 108.618
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.088 0.156    
2 C 0.088 0.156    
3 C 0.088 0.156    
4 C 0.088 0.156    
5 O -0.638 -0.449    
6 O -0.638 -0.449    
7 H 0.106 0.036    
8 H 0.106 0.036    
9 H 0.106 0.036    
10 H 0.106 0.036    
11 H 0.125 0.033    
12 H 0.125 0.033    
13 H 0.125 0.033    
14 H 0.125 0.033    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
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 6.031 -0.142 0.000
y -0.142 6.080 0.000
z 0.000 0.000 7.653


<r2> (average value of r2) Å2
<r2> 137.806
(<r2>)1/2 11.739