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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-307.603289
Energy at 298.15K-307.614478
Nuclear repulsion energy265.738503
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 B1B95/6-311G**
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 3112 2988 0.00      
2 Ag 2987 2868 0.00      
3 Ag 1483 1424 0.00      
4 Ag 1422 1365 0.00      
5 Ag 1336 1283 0.00      
6 Ag 1140 1094 0.00      
7 Ag 1041 999 0.00      
8 Ag 863 829 0.00      
9 Ag 424 407 0.00      
10 Ag 415 399 0.00      
11 Au 3110 2986 93.91      
12 Au 2981 2862 46.27      
13 Au 1469 1411 1.29      
14 Au 1389 1334 21.14      
15 Au 1286 1235 50.63      
16 Au 1174 1127 174.56      
17 Au 1101 1057 3.53      
18 Au 906 870 15.83      
19 Au 245 235 1.11      
20 Bg 3110 2986 0.00      
21 Bg 2993 2873 0.00      
22 Bg 1467 1409 0.00      
23 Bg 1351 1297 0.00      
24 Bg 1242 1192 0.00      
25 Bg 1161 1114 0.00      
26 Bg 861 826 0.00      
27 Bg 474 455 0.00      
28 Bu 3111 2987 50.15      
29 Bu 2997 2877 185.05      
30 Bu 1477 1418 15.77      
31 Bu 1403 1347 3.38      
32 Bu 1323 1270 12.21      
33 Bu 1068 1025 10.61      
34 Bu 911 875 74.83      
35 Bu 594 570 13.63      
36 Bu 269 259 18.38      

Unscaled Zero Point Vibrational Energy (zpe) 26847.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 25775.8 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 B1B95/6-311G**
ABC
0.17203 0.15784 0.09273

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.757 1.158
C2 0.000 0.757 -1.158
C3 0.000 -0.757 1.158
C4 0.000 -0.757 -1.158
O5 -0.644 -1.251 0.000
O6 0.644 1.251 0.000
H7 -1.037 1.121 1.194
H8 -1.037 1.121 -1.194
H9 1.037 -1.121 -1.194
H10 1.037 -1.121 1.194
H11 0.543 1.152 -2.017
H12 0.543 1.152 2.017
H13 -0.543 -1.152 -2.017
H14 -0.543 -1.152 2.017

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.31561.51422.76672.40601.41391.09992.59583.18312.14563.24531.09073.74452.1629
C22.31562.76671.51422.40601.41392.59581.09992.14563.18311.09073.24532.16293.7445
C31.51422.76672.31561.41392.40602.14563.18312.59581.09993.74452.16293.24531.0907
C42.76671.51422.31561.41392.40603.18312.14561.09992.59582.16293.74451.09073.2453
O52.40602.40601.41391.41392.81452.68462.68462.06582.06583.35473.35472.02232.0223
O61.41391.41392.40602.40602.81452.06582.06582.68462.68462.02232.02233.35473.3547
H71.09992.59582.14563.18312.68462.06582.38743.87673.05433.57901.78233.96492.4675
H82.59581.09993.18312.14562.68462.06582.38743.05433.87671.78233.57902.46753.9649
H93.18312.14562.59581.09992.06582.68463.87673.05432.38742.46753.96491.78233.5790
H102.14563.18311.09992.59582.06582.68463.05433.87672.38743.96492.46753.57901.7823
H113.24531.09073.74452.16293.35472.02233.57901.78232.46753.96494.03472.54714.7714
H121.09073.24532.16293.74453.35472.02231.78233.57903.96492.46754.03474.77142.5471
H133.74452.16293.24531.09072.02233.35473.96492.46751.78233.57902.54714.77144.0347
H142.16293.74451.09073.24532.02233.35472.46753.96493.57901.78234.77142.54714.0347

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 110.466 C1 C3 H10 109.308
C1 C3 H14 111.230 C1 O6 C2 109.944
C2 C4 O5 110.466 C2 C4 H9 109.308
C2 C4 H13 111.230 C3 C1 O6 110.466
C3 C1 H7 109.308 C3 C1 H12 111.230
C3 O5 C4 109.944 C4 C2 O6 110.466
C4 C2 H8 109.308 C4 C2 H11 111.230
O5 C3 H10 109.904 O5 C3 H14 106.986
O5 C4 H9 109.904 O5 C4 H13 106.986
O6 C1 H7 109.904 O6 C1 H12 106.986
O6 C2 H8 109.904 O6 C2 H11 106.986
H7 C1 H12 108.908 H8 C2 H11 108.908
H9 C4 H13 108.908 H10 C3 H14 108.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.071      
2 C -0.071      
3 C -0.071      
4 C -0.071      
5 O -0.348      
6 O -0.348      
7 H 0.120      
8 H 0.120      
9 H 0.120      
10 H 0.120      
11 H 0.125      
12 H 0.125      
13 H 0.125      
14 H 0.125      


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
Primitive
 xyz
x -38.263 -3.102 0.000
y -3.102 -40.742 0.000
z 0.000 0.000 -30.557
Traceless
 xyz
x -2.614 -3.102 0.000
y -3.102 -6.332 0.000
z 0.000 0.000 8.946
Polar
3z2-r217.892
x2-y22.479
xy-3.102
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.759 -0.230 0.000
y -0.230 7.028 0.000
z 0.000 0.000 8.638


<r2> (average value of r2) Å2
<r2> 138.219
(<r2>)1/2 11.757