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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-305.684166
Energy at 298.15K-305.695621
Nuclear repulsion energy263.443762
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 3304 2983 0.00      
2 Ag 3206 2894 0.00      
3 Ag 1666 1504 0.00      
4 Ag 1551 1401 0.00      
5 Ag 1434 1294 0.00      
6 Ag 1267 1144 0.00      
7 Ag 1104 997 0.00      
8 Ag 897 810 0.00      
9 Ag 455 411 0.00      
10 Ag 420 379 0.00      
11 Au 3300 2979 79.50      
12 Au 3199 2888 37.85      
13 Au 1651 1491 0.03      
14 Au 1523 1375 24.38      
15 Au 1395 1259 44.85      
16 Au 1246 1125 146.62      
17 Au 1206 1089 43.51      
18 Au 978 883 39.68      
19 Au 253 228 2.47      
20 Bg 3302 2982 0.00      
21 Bg 3206 2894 0.00      
22 Bg 1651 1491 0.00      
23 Bg 1509 1362 0.00      
24 Bg 1344 1213 0.00      
25 Bg 1229 1109 0.00      
26 Bg 944 853 0.00      
27 Bg 529 478 0.00      
28 Bu 3306 2985 67.37      
29 Bu 3212 2900 141.30      
30 Bu 1663 1501 10.76      
31 Bu 1559 1408 1.07      
32 Bu 1424 1286 10.12      
33 Bu 1151 1039 16.16      
34 Bu 916 827 67.95      
35 Bu 667 602 32.12      
36 Bu 272 245 41.55      

Unscaled Zero Point Vibrational Energy (zpe) 28966.6 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 26153.9 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
0.16255 0.16091 0.09057

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 0.758 1.205
C2 0.000 0.758 -1.205
C3 0.000 -0.758 1.205
C4 0.000 -0.758 -1.205
O5 -0.624 -1.232 0.000
O6 0.624 1.232 0.000
H7 -1.016 1.134 1.258
H8 -1.016 1.134 -1.258
H9 1.016 -1.134 -1.258
H10 1.016 -1.134 1.258
H11 0.573 1.163 -2.024
H12 0.573 1.163 2.024
H13 -0.573 -1.163 -2.024
H14 -0.573 -1.163 2.024

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.40911.51662.84682.40901.43701.08462.69013.26752.14853.30381.07853.80052.1660
C22.40912.84681.51662.40901.43702.69011.08462.14853.26751.07853.30382.16603.8005
C31.51662.84682.40911.43702.40902.14853.26752.69011.08463.80052.16603.30381.0785
C42.84681.51662.40911.43702.40903.26752.14851.08462.69012.16603.80051.07853.3038
O52.40902.40901.43701.43702.76262.70832.70832.06932.06933.35663.35662.02582.0258
O61.43701.43702.40902.40902.76262.06932.06932.70832.70832.02582.02583.35663.3566
H71.08462.69012.14853.26752.70832.06932.51553.94993.04523.64621.76414.03032.4619
H82.69011.08463.26752.14852.70832.06932.51553.04523.94991.76413.64622.46194.0303
H93.26752.14852.69011.08462.06932.70833.94993.04522.51552.46194.03031.76413.6462
H102.14853.26751.08462.69012.06932.70833.04523.94992.51554.03032.46193.64621.7641
H113.30381.07853.80052.16603.35662.02583.64621.76412.46194.03034.04792.59314.8072
H121.07853.30382.16603.80053.35662.02581.76413.64624.03032.46194.04794.80722.5931
H133.80052.16603.30381.07852.02583.35664.03032.46191.76413.64622.59314.80724.0479
H142.16603.80051.07853.30382.02583.35662.46194.03033.64621.76414.80722.59314.0479

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 109.259 C1 C3 H10 110.261
C1 C3 H14 112.051 C1 O6 C2 113.908
C2 C4 O5 109.259 C2 C4 H9 110.261
C2 C4 H13 112.051 C3 C1 O6 109.259
C3 C1 H7 110.261 C3 C1 H12 112.051
C3 O5 C4 113.908 C4 C2 O6 109.259
C4 C2 H8 110.261 C4 C2 H11 112.051
O5 C3 H10 109.494 O5 C3 H14 106.406
O5 C4 H9 109.494 O5 C4 H13 106.406
O6 C1 H7 109.494 O6 C1 H12 106.406
O6 C2 H8 109.494 O6 C2 H11 106.406
H7 C1 H12 109.275 H8 C2 H11 109.275
H9 C4 H13 109.275 H10 C3 H14 109.275
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 0.004 0.199    
2 C 0.004 0.199    
3 C 0.004 0.199    
4 C 0.004 0.199    
5 O -0.701 -0.572    
6 O -0.701 -0.572    
7 H 0.163 0.054    
8 H 0.163 0.054    
9 H 0.163 0.054    
10 H 0.163 0.054    
11 H 0.183 0.033    
12 H 0.183 0.033    
13 H 0.183 0.033    
14 H 0.183 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 0.000 0.000 0.000 0.000
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 5.838 -0.065 0.000
y -0.065 5.797 0.000
z 0.000 0.000 7.750


<r2> (average value of r2) Å2
<r2> 140.955
(<r2>)1/2 11.872