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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-230.231988
Energy at 298.15K-230.239144
Nuclear repulsion energy130.484416
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 mPW1PW91/aug-cc-pVDZ
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 3905 3742 0.00      
2 Ag 3030 2904 0.00      
3 Ag 1507 1444 0.00      
4 Ag 1480 1419 0.00      
5 Ag 1295 1241 0.00      
6 Ag 1110 1064 0.00      
7 Ag 1008 966 0.00      
8 Ag 483 463 0.00      
9 Au 3094 2965 80.95      
10 Au 1223 1172 1.14      
11 Au 831 797 1.06      
12 Au 258 248 216.72      
13 Au 115 111 29.85      
14 Bg 3067 2939 0.00      
15 Bg 1300 1246 0.00      
16 Bg 1154 1106 0.00      
17 Bg 253 242 0.00      
18 Bu 3905 3742 84.65      
19 Bu 3035 2909 106.70      
20 Bu 1513 1450 6.25      
21 Bu 1396 1338 14.29      
22 Bu 1196 1146 76.51      
23 Bu 1096 1051 222.42      
24 Bu 295 283 19.51      

Unscaled Zero Point Vibrational Energy (zpe) 18775.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 17992.2 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 mPW1PW91/aug-cc-pVDZ
ABC
1.01944 0.13413 0.12414

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.435 0.619 0.000
C2 -0.435 -0.619 0.000
O3 0.435 -1.739 0.000
O4 -0.435 1.739 0.000
H5 -0.093 -2.540 0.000
H6 0.093 2.540 0.000
H7 -1.080 -0.608 0.893
H8 -1.080 -0.608 -0.893
H9 1.080 0.608 0.893
H10 1.080 0.608 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51282.35821.41883.20271.95142.14452.14451.10151.1015
C21.51281.41882.35821.95143.20271.10151.10152.14452.1445
O32.35821.41883.58600.95924.29312.09102.09102.59332.5933
O41.41882.35823.58604.29310.95922.59332.59332.09102.0910
H53.20271.95140.95924.29315.08352.34572.34573.47663.4766
H61.95143.20274.29310.95925.08353.47663.47662.34572.3457
H72.14451.10152.09102.59332.34573.47661.78522.47973.0555
H82.14451.10152.09102.59332.34573.47661.78523.05552.4797
H91.10152.14452.59332.09103.47662.34572.47973.05551.7852
H101.10152.14452.59332.09103.47662.34573.05552.47971.7852

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 107.064 C1 C2 H7 109.224
C1 C2 H8 109.224 C1 O4 H6 108.755
C2 C1 O4 107.064 C2 C1 H9 109.224
C2 C1 H10 109.224 C2 O3 H5 108.755
O3 C2 H7 111.513 O3 C2 H8 111.513
O4 C1 H9 111.513 O4 C1 H10 111.513
H7 C2 H8 108.263 H9 C1 H10 108.263
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.769      
2 C 0.769      
3 O -0.485      
4 O -0.485      
5 H 0.110      
6 H 0.110      
7 H -0.197      
8 H -0.197      
9 H -0.197      
10 H -0.197      


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 -26.691 6.415 0.000
y 6.415 -19.433 0.000
z 0.000 0.000 -25.592
Traceless
 xyz
x -4.179 6.415 0.000
y 6.415 6.709 0.000
z 0.000 0.000 -2.530
Polar
3z2-r2-5.060
x2-y2-7.259
xy6.415
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.440 -0.074 0.000
y -0.074 6.381 0.000
z 0.000 0.000 4.923


<r2> (average value of r2) Å2
<r2> 95.490
(<r2>)1/2 9.772