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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-230.208719
Energy at 298.15K-230.215798
Nuclear repulsion energy130.626774
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 mPW1PW91/6-31+G**
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 3922 3733 0.00      
2 Ag 3036 2890 0.00      
3 Ag 1532 1458 0.00      
4 Ag 1490 1419 0.00      
5 Ag 1288 1226 0.00      
6 Ag 1115 1061 0.00      
7 Ag 1000 951 0.00      
8 Ag 485 461 0.00      
9 Au 3099 2950 88.14      
10 Au 1237 1177 1.34      
11 Au 836 796 1.93      
12 Au 241 229 272.43      
13 Au 117 112 38.27      
14 Bg 3072 2924 0.00      
15 Bg 1311 1248 0.00      
16 Bg 1166 1110 0.00      
17 Bg 224 213 0.00      
18 Bu 3922 3733 88.54      
19 Bu 3041 2895 109.98      
20 Bu 1540 1466 6.99      
21 Bu 1405 1337 5.03      
22 Bu 1186 1129 80.69      
23 Bu 1105 1051 249.16      
24 Bu 295 280 23.39      

Unscaled Zero Point Vibrational Energy (zpe) 18832.5 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 17924.8 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 mPW1PW91/6-31+G**
ABC
1.02280 0.13437 0.12435

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.757 0.000
C2 0.000 -0.757 0.000
O3 1.354 -1.172 0.000
O4 -1.354 1.172 0.000
H5 1.390 -2.131 0.000
H6 -1.390 2.131 0.000
H7 -0.534 -1.116 0.889
H8 -0.534 -1.116 -0.889
H9 0.534 1.116 0.889
H10 0.534 1.116 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51382.35671.41643.20511.95462.14092.14091.09751.0975
C21.51381.41642.35671.95463.20511.09751.09752.14092.1409
O32.35671.41643.58170.96004.29422.08762.08762.58812.5881
O41.41642.35673.58174.29420.96002.58812.58812.08762.0876
H53.20511.95460.96004.29425.08882.34992.34993.47393.4739
H61.95463.20514.29420.96005.08883.47393.47392.34992.3499
H72.14091.09752.08762.58812.34993.47391.77872.47393.0470
H82.14091.09752.08762.58812.34993.47391.77873.04702.4739
H91.09752.14092.58812.08763.47392.34992.47393.04701.7787
H101.09752.14092.58812.08763.47392.34993.04702.47391.7787

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 107.034 C1 C2 H7 109.095
C1 C2 H8 109.095 C1 O4 H6 109.172
C2 C1 O4 107.034 C2 C1 H9 109.095
C2 C1 H10 109.095 C2 O3 H5 109.172
O3 C2 H7 111.654 O3 C2 H8 111.654
O4 C1 H9 111.654 O4 C1 H10 111.654
H7 C2 H8 108.256 H9 C1 H10 108.256
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.132      
2 C -0.132      
3 O -0.541      
4 O -0.541      
5 H 0.358      
6 H 0.358      
7 H 0.157      
8 H 0.157      
9 H 0.157      
10 H 0.157      


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> 95.289
(<r2>)1/2 9.762