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All results from a given calculation for C2H6O2 (1,2-Ethanediol)

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-230.345516
Energy at 298.15K-230.352551
Nuclear repulsion energy130.282508
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 B3LYP/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 3842 3714 0.00      
2 Ag 2989 2889 0.00      
3 Ag 1524 1473 0.00      
4 Ag 1481 1432 0.00      
5 Ag 1287 1244 0.00      
6 Ag 1073 1038 0.00      
7 Ag 986 954 0.00      
8 Ag 478 462 0.00      
9 Au 3041 2940 99.67      
10 Au 1224 1183 1.40      
11 Au 837 809 1.47      
12 Au 227 219 215.81      
13 Au 117 113 31.28      
14 Bg 3012 2911 0.00      
15 Bg 1307 1263 0.00      
16 Bg 1161 1123 0.00      
17 Bg 209 202 0.00      
18 Bu 3843 3714 68.18      
19 Bu 2996 2896 109.86      
20 Bu 1537 1485 4.34      
21 Bu 1413 1366 9.39      
22 Bu 1191 1152 90.67      
23 Bu 1059 1024 218.11      
24 Bu 293 284 18.80      

Unscaled Zero Point Vibrational Energy (zpe) 18563.0 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 17943.0 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 B3LYP/cc-pVTZ
ABC
1.02198 0.13332 0.12340

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 0.000
C2 0.000 -0.758 0.000
O3 1.361 -1.178 0.000
O4 -1.361 1.178 0.000
H5 1.386 -2.137 0.000
H6 -1.386 2.137 0.000
H7 -0.533 -1.116 0.887
H8 -0.533 -1.116 -0.887
H9 0.533 1.116 0.887
H10 0.533 1.116 -0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51512.36561.42403.20971.95592.14062.14061.09511.0951
C21.51511.42402.36561.95593.20971.09511.09512.14062.1406
O32.36561.42403.59890.96014.30512.09212.09212.59472.5947
O41.42402.36563.59894.30510.96012.59472.59472.09212.0921
H53.20971.95590.96014.30515.09512.34802.34803.47863.4786
H61.95593.20974.30510.96015.09513.47863.47862.34802.3480
H72.14061.09512.09212.59472.34803.47861.77302.47463.0442
H82.14061.09512.09212.59472.34803.47861.77303.04422.4746
H91.09512.14062.59472.09213.47862.34802.47463.04421.7730
H101.09512.14062.59472.09213.47862.34803.04422.47461.7730

picture of 1,2-Ethanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.157 C1 C2 H7 109.132
C1 C2 H8 109.132 C1 O4 H6 108.685
C2 C1 O4 107.157 C2 C1 H9 109.132
C2 C1 H10 109.132 C2 O3 H5 108.685
O3 C2 H7 111.637 O3 C2 H8 111.637
O4 C1 H9 111.637 O4 C1 H10 111.637
H7 C2 H8 108.101 H9 C1 H10 108.101
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.031     0.205
2 C 0.031     0.212
3 O -0.349     -0.629
4 O -0.349     -0.629
5 H 0.200     0.386
6 H 0.200     0.387
7 H 0.059     0.017
8 H 0.059     0.017
9 H 0.059     0.018
10 H 0.059     0.018


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 0.001 0.001 0.000 0.002


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.779 -1.434 0.000
y -1.434 -15.719 0.000
z 0.000 0.000 -25.470
Traceless
 xyz
x -9.184 -1.434 0.000
y -1.434 11.905 0.000
z 0.000 0.000 -2.721
Polar
3z2-r2-5.442
x2-y2-14.060
xy-1.434
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.205 -0.426 0.000
y -0.426 5.687 0.000
z 0.000 0.000 4.379


<r2> (average value of r2) Å2
<r2> 95.715
(<r2>)1/2 9.783