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

using model chemistry: B1B95/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-307.540900
Energy at 298.15K-307.552098
Nuclear repulsion energy265.415028
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/cc-pVDZ
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 3116 2995 0.00      
2 Ag 2986 2871 0.00      
3 Ag 1462 1405 0.00      
4 Ag 1417 1362 0.00      
5 Ag 1325 1273 0.00      
6 Ag 1133 1089 0.00      
7 Ag 1050 1009 0.00      
8 Ag 869 835 0.00      
9 Ag 426 409 0.00      
10 Ag 417 400 0.00      
11 Au 3114 2994 92.01      
12 Au 2980 2865 46.12      
13 Au 1444 1388 0.93      
14 Au 1383 1329 31.31      
15 Au 1278 1228 60.34      
16 Au 1187 1141 164.18      
17 Au 1095 1053 2.42      
18 Au 912 876 16.60      
19 Au 246 237 0.86      
20 Bg 3113 2993 0.00      
21 Bg 2991 2875 0.00      
22 Bg 1441 1385 0.00      
23 Bg 1337 1285 0.00      
24 Bg 1228 1181 0.00      
25 Bg 1168 1123 0.00      
26 Bg 860 826 0.00      
27 Bg 483 464 0.00      
28 Bu 3114 2993 47.74      
29 Bu 2994 2878 179.44      
30 Bu 1455 1399 14.38      
31 Bu 1392 1338 5.77      
32 Bu 1310 1259 12.83      
33 Bu 1066 1025 10.81      
34 Bu 918 883 71.46      
35 Bu 595 572 11.12      
36 Bu 271 261 16.24      

Unscaled Zero Point Vibrational Energy (zpe) 26787.6 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 25748.3 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/cc-pVDZ
ABC
0.17188 0.15743 0.09258

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.757 1.157
C2 0.000 0.757 -1.157
C3 0.000 -0.757 1.157
C4 0.000 -0.757 -1.157
O5 -0.641 -1.254 0.000
O6 0.641 1.254 0.000
H7 -1.045 1.124 1.201
H8 -1.045 1.124 -1.201
H9 1.045 -1.124 -1.201
H10 1.045 -1.124 1.201
H11 0.548 1.154 -2.023
H12 0.548 1.154 2.023
H13 -0.548 -1.154 -2.023
H14 -0.548 -1.154 2.023

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.31361.51472.76532.40761.41291.10792.60453.19172.15213.25061.09863.74982.1683
C22.31362.76531.51472.40761.41292.60451.10792.15213.19171.09863.25062.16833.7498
C31.51472.76532.31361.41292.40762.15213.19172.60451.10793.74982.16833.25061.0986
C42.76531.51472.31361.41292.40763.19172.15211.10792.60452.16833.74981.09863.2506
O52.40762.40761.41291.41292.81752.69442.69442.07382.07383.36203.36202.02742.0274
O61.41291.41292.40762.40762.81752.07382.07382.69442.69442.02742.02743.36203.3620
H71.10792.60452.15213.19172.69442.07382.40143.89653.06853.59541.79243.97782.4715
H82.60451.10793.19172.15212.69442.07382.40143.06853.89651.79243.59542.47153.9778
H93.19172.15212.60451.10792.07382.69443.89653.06852.40142.47153.97781.79243.5954
H102.15213.19171.10792.60452.07382.69443.06853.89652.40143.97782.47153.59541.7924
H113.25061.09863.74982.16833.36202.02743.59541.79242.47153.97784.04542.55404.7842
H121.09863.25062.16833.74983.36202.02741.79243.59543.97782.47154.04544.78422.5540
H133.74982.16833.25061.09862.02743.36203.97782.47151.79243.59542.55404.78424.0454
H142.16833.74981.09863.25062.02743.36202.47153.97783.59541.79244.78422.55404.0454

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 110.598 C1 C3 H10 109.309
C1 C3 H14 111.141 C1 O6 C2 109.915
C2 C4 O5 110.598 C2 C4 H9 109.309
C2 C4 H13 111.141 C3 C1 O6 110.598
C3 C1 H7 109.309 C3 C1 H12 111.141
C3 O5 C4 109.915 C4 C2 O6 110.598
C4 C2 H8 109.309 C4 C2 H11 111.141
O5 C3 H10 110.119 O5 C3 H14 106.987
O5 C4 H9 110.119 O5 C4 H13 106.987
O6 C1 H7 110.119 O6 C1 H12 106.987
O6 C2 H8 110.119 O6 C2 H11 106.987
H7 C1 H12 108.646 H8 C2 H11 108.646
H9 C4 H13 108.646 H10 C3 H14 108.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.116      
2 C 0.116      
3 C 0.116      
4 C 0.116      
5 O -0.322      
6 O -0.322      
7 H 0.018      
8 H 0.018      
9 H 0.018      
10 H 0.018      
11 H 0.026      
12 H 0.026      
13 H 0.026      
14 H 0.026      


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 -37.924 -2.786 0.000
y -2.786 -40.287 0.000
z 0.000 0.000 -30.826
Traceless
 xyz
x -2.367 -2.786 0.000
y -2.786 -5.912 0.000
z 0.000 0.000 8.279
Polar
3z2-r216.558
x2-y22.364
xy-2.786
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.618 -0.235 0.000
y -0.235 6.857 0.000
z 0.000 0.000 8.573


<r2> (average value of r2) Å2
<r2> 138.408
(<r2>)1/2 11.765