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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-230.179564
Energy at 298.15K-230.186653
Nuclear repulsion energy130.691059
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 B3PW91/6-31G(2df,p)
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 3881 3731 0.00      
2 Ag 2986 2871 0.00      
3 Ag 1520 1462 0.00      
4 Ag 1489 1432 0.00      
5 Ag 1295 1245 0.00      
6 Ag 1115 1072 0.00      
7 Ag 996 957 0.00      
8 Ag 482 463 0.00      
9 Au 3043 2925 112.97      
10 Au 1223 1176 2.06      
11 Au 828 796 2.15      
12 Au 243 234 219.15      
13 Au 120 115 23.30      
14 Bg 3014 2897 0.00      
15 Bg 1298 1248 0.00      
16 Bg 1164 1119 0.00      
17 Bg 233 224 0.00      
18 Bu 3882 3732 61.55      
19 Bu 2992 2877 110.70      
20 Bu 1531 1472 5.45      
21 Bu 1416 1361 15.44      
22 Bu 1198 1152 70.20      
23 Bu 1103 1061 226.18      
24 Bu 287 276 17.54      

Unscaled Zero Point Vibrational Energy (zpe) 18669.5 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 17948.9 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 B3PW91/6-31G(2df,p)
ABC
1.02198 0.13447 0.12441

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.759 0.000
C2 0.000 -0.759 0.000
O3 1.348 -1.179 0.000
O4 -1.348 1.179 0.000
H5 1.359 -2.138 0.000
H6 -1.359 2.138 0.000
H7 -0.546 -1.113 0.888
H8 -0.546 -1.113 -0.888
H9 0.546 1.113 0.888
H10 0.546 1.113 -0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51732.36011.41163.19941.93612.14242.14241.10111.1011
C21.51731.41162.36011.93613.19941.10111.10112.14242.1424
O32.36011.41163.58100.95904.28082.09272.09272.58532.5853
O41.41162.36013.58104.28080.95902.58532.58532.09272.0927
H53.19941.93610.95904.28085.06622.33832.33833.46663.4666
H61.93613.19944.28080.95905.06623.46663.46662.33832.3383
H72.14241.10112.09272.58532.33833.46661.77582.47983.0500
H82.14241.10112.09272.58532.33833.46661.77583.05002.4798
H91.10112.14242.58532.09273.46662.33832.47983.05001.7758
H101.10112.14242.58532.09273.46662.33833.05002.47981.7758

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 107.323 C1 C2 H7 108.777
C1 C2 H8 108.777 C1 O4 H6 107.988
C2 C1 O4 107.323 C2 C1 H9 108.777
C2 C1 H10 108.777 C2 O3 H5 107.988
O3 C2 H7 112.196 O3 C2 H8 112.196
O4 C1 H9 112.196 O4 C1 H10 112.196
H7 C2 H8 107.489 H9 C1 H10 107.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.096      
2 C -0.096      
3 O -0.447      
4 O -0.447      
5 H 0.307      
6 H 0.307      
7 H 0.118      
8 H 0.118      
9 H 0.118      
10 H 0.118      


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 -28.727 -1.499 0.000
y -1.499 -15.127 0.000
z 0.000 0.000 -24.822
Traceless
 xyz
x -8.752 -1.499 0.000
y -1.499 11.647 0.000
z 0.000 0.000 -2.895
Polar
3z2-r2-5.790
x2-y2-13.600
xy-1.499
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.724 -0.429 0.000
y -0.429 5.192 0.000
z 0.000 0.000 4.051


<r2> (average value of r2) Å2
<r2> 94.635
(<r2>)1/2 9.728