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

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-230.255336
Energy at 298.15K-230.262364
Nuclear repulsion energy130.660400
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/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 3877 3728 0.00      
2 Ag 2993 2878 0.00      
3 Ag 1517 1459 0.00      
4 Ag 1482 1425 0.00      
5 Ag 1287 1238 0.00      
6 Ag 1097 1055 0.00      
7 Ag 994 956 0.00      
8 Ag 479 461 0.00      
9 Au 3049 2931 95.49      
10 Au 1224 1177 1.40      
11 Au 831 799 1.32      
12 Au 224 215 215.01      
13 Au 117 112 32.31      
14 Bg 3019 2903 0.00      
15 Bg 1303 1253 0.00      
16 Bg 1159 1114 0.00      
17 Bg 206 198 0.00      
18 Bu 3878 3729 73.56      
19 Bu 2999 2884 109.65      
20 Bu 1529 1470 4.79      
21 Bu 1408 1354 10.35      
22 Bu 1191 1145 76.33      
23 Bu 1084 1043 230.03      
24 Bu 290 279 18.82      

Unscaled Zero Point Vibrational Energy (zpe) 18617.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 17902.5 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/cc-pVTZ
ABC
1.02674 0.13418 0.12422

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.756 0.000
C2 0.000 -0.756 0.000
O3 1.352 -1.177 0.000
O4 -1.352 1.177 0.000
H5 1.372 -2.136 0.000
H6 -1.372 2.136 0.000
H7 -0.537 -1.113 0.887
H8 -0.537 -1.113 -0.887
H9 0.537 1.113 0.887
H10 0.537 1.113 -0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51182.35941.41663.20051.94572.13742.13741.09671.0967
C21.51181.41662.35941.94573.20051.09671.09672.13742.1374
O32.35941.41663.58620.95844.28932.08842.08842.58792.5879
O41.41662.35943.58624.28930.95842.58792.58792.08842.0884
H53.20051.94570.95844.28935.07672.34042.34043.46943.4694
H61.94573.20054.28930.95845.07673.46943.46942.34042.3404
H72.13741.09672.08842.58792.34043.46941.77372.47193.0424
H82.13741.09672.08842.58792.34043.46941.77373.04242.4719
H91.09672.13742.58792.08843.46942.34042.47193.04241.7737
H101.09672.13742.58792.08843.46942.34043.04242.47191.7737

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 107.308 C1 C2 H7 109.006
C1 C2 H8 109.006 C1 O4 H6 108.479
C2 C1 O4 107.308 C2 C1 H9 109.006
C2 C1 H10 109.006 C2 O3 H5 108.479
O3 C2 H7 111.766 O3 C2 H8 111.766
O4 C1 H9 111.766 O4 C1 H10 111.766
H7 C2 H8 107.932 H9 C1 H10 107.932
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.034      
2 C 0.034      
3 O -0.338      
4 O -0.338      
5 H 0.196      
6 H 0.196      
7 H 0.054      
8 H 0.054      
9 H 0.054      
10 H 0.054      


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


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


<r2> (average value of r2) Å2
<r2> 95.045
(<r2>)1/2 9.749