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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-230.210494
Energy at 298.15K-230.217675
Nuclear repulsion energy130.672406
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3842 3698 0.00      
2 Ag 2997 2885 0.00      
3 Ag 1536 1479 0.00      
4 Ag 1507 1451 0.00      
5 Ag 1309 1260 0.00      
6 Ag 1104 1063 0.00      
7 Ag 1004 966 0.00      
8 Ag 483 465 0.00      
9 Au 3053 2939 131.09      
10 Au 1239 1193 1.77      
11 Au 844 812 3.49      
12 Au 267 257 296.19      
13 Au 130 125 22.61      
14 Bg 3022 2910 0.00      
15 Bg 1317 1268 0.00      
16 Bg 1168 1124 0.00      
17 Bg 254 245 0.00      
18 Bu 3842 3699 34.10      
19 Bu 3002 2890 130.85      
20 Bu 1546 1489 5.36      
21 Bu 1427 1373 8.79      
22 Bu 1207 1162 118.24      
23 Bu 1095 1054 218.26      
24 Bu 293 282 23.94      

Unscaled Zero Point Vibrational Energy (zpe) 18743.1 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 18044.0 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 B3PW91/6-311G*
ABC
1.02428 0.13444 0.12443

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

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 1.353 -1.174 0.000
O4 -1.353 1.174 0.000
H5 1.374 -2.134 0.000
H6 -1.374 2.134 0.000
H7 -0.539 -1.112 0.889
H8 -0.539 -1.112 -0.889
H9 0.539 1.112 0.889
H10 0.539 1.112 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51102.35661.41603.19961.94632.13742.13741.09921.0992
C21.51101.41602.35661.94633.19961.09921.09922.13742.1374
O32.35661.41603.58240.96014.28702.09122.09122.58432.5843
O41.41602.35663.58244.28700.96012.58432.58432.09122.0912
H53.19961.94630.96014.28705.07622.34422.34423.46753.4675
H61.94633.19964.28700.96015.07623.46753.46752.34422.3442
H72.13741.09922.09122.58432.34423.46751.77822.47153.0447
H82.13741.09922.09122.58432.34423.46751.77823.04472.4715
H91.09922.13742.58432.09123.46752.34422.47153.04471.7782
H101.09922.13742.58432.09123.46752.34423.04472.47151.7782

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 107.199 C1 C2 H7 108.920
C1 C2 H8 108.920 C1 O4 H6 108.471
C2 C1 O4 107.199 C2 C1 H9 108.920
C2 C1 H10 108.920 C2 O3 H5 108.471
O3 C2 H7 111.883 O3 C2 H8 111.883
O4 C1 H9 111.883 O4 C1 H10 111.883
H7 C2 H8 107.969 H9 C1 H10 107.969
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.216      
2 C -0.216      
3 O -0.581      
4 O -0.581      
5 H 0.397      
6 H 0.397      
7 H 0.200      
8 H 0.200      
9 H 0.200      
10 H 0.200      


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> 94.842
(<r2>)1/2 9.739