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

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-307.525999
Energy at 298.15K-307.537238
HF Energy-307.152205
Nuclear repulsion energy264.730742
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 B2PLYP/cc-pVTZ
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 3115 2988 0.00      
2 Ag 3004 2882 0.00      
3 Ag 1506 1445 0.00      
4 Ag 1429 1371 0.00      
5 Ag 1337 1283 0.00      
6 Ag 1156 1109 0.00      
7 Ag 1034 992 0.00      
8 Ag 853 818 0.00      
9 Ag 437 419 0.00      
10 Ag 419 402 0.00      
11 Au 3113 2986 89.83      
12 Au 2998 2877 49.45      
13 Au 1494 1433 0.75      
14 Au 1399 1342 18.39      
15 Au 1291 1239 38.52      
16 Au 1157 1110 171.24      
17 Au 1114 1068 11.27      
18 Au 902 865 21.63      
19 Au 250 240 0.87      
20 Bg 3113 2987 0.00      
21 Bg 3010 2887 0.00      
22 Bg 1493 1432 0.00      
23 Bg 1370 1314 0.00      
24 Bg 1246 1195 0.00      
25 Bg 1145 1098 0.00      
26 Bg 869 833 0.00      
27 Bg 490 470 0.00      
28 Bu 3114 2988 47.34      
29 Bu 3013 2891 159.27      
30 Bu 1501 1440 12.23      
31 Bu 1419 1362 2.18      
32 Bu 1325 1271 10.76      
33 Bu 1072 1029 9.41      
34 Bu 894 858 67.54      
35 Bu 613 588 14.04      
36 Bu 266 256 17.68      

Unscaled Zero Point Vibrational Energy (zpe) 26979.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 25884.4 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 B2PLYP/cc-pVTZ
ABC
0.16997 0.15713 0.09176

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 1.167
C2 0.000 0.758 -1.167
C3 0.000 -0.758 1.167
C4 0.000 -0.758 -1.167
O5 -0.640 -1.258 0.000
O6 0.640 1.258 0.000
H7 -1.032 1.125 1.214
H8 -1.032 1.125 -1.214
H9 1.032 -1.125 -1.214
H10 1.032 -1.125 1.214
H11 0.553 1.148 -2.019
H12 0.553 1.148 2.019
H13 -0.553 -1.148 -2.019
H14 -0.553 -1.148 2.019

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.33321.51652.78272.41531.42101.09642.62023.20592.14823.25661.08843.75332.1602
C22.33322.78271.51652.41531.42102.62021.09642.14823.20591.08843.25662.16023.7533
C31.51652.78272.33321.42102.41532.14823.20592.62021.09643.75332.16023.25661.0884
C42.78271.51652.33321.42102.41533.20592.14821.09642.62022.16023.75331.08843.2566
O52.41532.41531.42101.42102.82192.70272.70272.07012.07013.35953.35952.02372.0237
O61.42101.42102.41532.41532.82192.07012.07012.70272.70272.02372.02373.35953.3595
H71.09642.62022.14823.20592.70272.07012.42723.90093.05373.60051.77853.98062.4586
H82.62021.09643.20592.14822.70272.07012.42723.05373.90091.77853.60052.45863.9806
H93.20592.14822.62021.09642.07012.70273.90093.05372.42722.45863.98061.77853.6005
H102.14823.20591.09642.62022.07012.70273.05373.90092.42723.98062.45863.60051.7785
H113.25661.08843.75332.16023.35952.02373.60051.77852.45863.98064.03782.54884.7749
H121.08843.25662.16023.75333.35952.02371.77853.60053.98062.45864.03784.77492.5488
H133.75332.16023.25661.08842.02373.35953.98062.45861.77853.60052.54884.77494.0378
H142.16023.75331.08843.25662.02373.35952.45863.98063.60051.77854.77492.54884.0378

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 110.574 C1 C3 H10 109.548
C1 C3 H14 110.979 C1 O6 C2 110.357
C2 C4 O5 110.574 C2 C4 H9 109.548
C2 C4 H13 110.979 C3 C1 O6 110.574
C3 C1 H7 109.548 C3 C1 H12 110.979
C3 O5 C4 110.357 C4 C2 O6 110.574
C4 C2 H8 109.548 C4 C2 H11 110.979
O5 C3 H10 109.958 O5 C3 H14 106.750
O5 C4 H9 109.958 O5 C4 H13 106.750
O6 C1 H7 109.958 O6 C1 H12 106.750
O6 C2 H8 109.958 O6 C2 H11 106.750
H7 C1 H12 108.984 H8 C2 H11 108.984
H9 C4 H13 108.984 H10 C3 H14 108.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.014      
2 C 0.014      
3 C 0.014      
4 C 0.014      
5 O -0.345      
6 O -0.345      
7 H 0.063      
8 H 0.063      
9 H 0.063      
10 H 0.063      
11 H 0.096      
12 H 0.096      
13 H 0.096      
14 H 0.096      


Electric dipole moments


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 7.092 -0.146 0.000
y -0.146 7.491 0.000
z 0.000 0.000 9.073


<r2> (average value of r2) Å2
<r2> 139.408
(<r2>)1/2 11.807