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

using model chemistry: MP2=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-228.074134
Energy at 298.15K-228.081351
HF Energy-227.649571
Nuclear repulsion energy128.210872
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 MP2=FULL/3-21G
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 3533 3373 0.00      
2 Ag 3071 2933 0.00      
3 Ag 1632 1558 0.00      
4 Ag 1524 1455 0.00      
5 Ag 1325 1265 0.00      
6 Ag 1035 989 0.00      
7 Ag 996 951 0.00      
8 Ag 465 444 0.00      
9 Au 3130 2988 111.46      
10 Au 1243 1187 1.67      
11 Au 897 857 3.45      
12 Au 282 269 317.02      
13 Au 138 132 9.51      
14 Bg 3102 2962 0.00      
15 Bg 1376 1314 0.00      
16 Bg 1182 1128 0.00      
17 Bg 280 268 0.00      
18 Bu 3534 3374 3.25      
19 Bu 3077 2938 68.02      
20 Bu 1644 1570 5.26      
21 Bu 1463 1397 3.34      
22 Bu 1230 1175 106.08      
23 Bu 1021 975 134.58      
24 Bu 272 260 29.12      

Unscaled Zero Point Vibrational Energy (zpe) 18725.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 17879.5 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 MP2=FULL/3-21G
ABC
0.97021 0.13085 0.12057

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.763 0.000
C2 0.000 -0.763 0.000
O3 1.422 -1.139 0.000
O4 -1.422 1.139 0.000
H5 1.471 -2.129 0.000
H6 -1.471 2.129 0.000
H7 -0.534 -1.116 0.890
H8 -0.534 -1.116 -0.890
H9 0.534 1.116 0.890
H10 0.534 1.116 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.52552.37471.47093.24442.00772.14622.14621.09641.0964
C21.52551.47092.37472.00773.24441.09641.09642.14622.1462
O32.37471.47093.64390.99104.36472.14932.14932.58152.5815
O41.47092.37473.64394.36470.99102.58152.58152.14932.1493
H53.24442.00770.99104.36475.17562.41682.41683.49243.4924
H62.00773.24444.36470.99105.17563.49243.49242.41682.4168
H72.14621.09642.14932.58152.41683.49241.77972.47423.0478
H82.14621.09642.14932.58152.41683.49241.77973.04782.4742
H91.09642.14622.58152.14933.49242.41682.47423.04781.7797
H101.09642.14622.58152.14933.49242.41683.04782.47421.7797

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 104.830 C1 C2 H7 108.781
C1 C2 H8 108.781 C1 O4 H6 107.682
C2 C1 O4 104.830 C2 C1 H9 108.781
C2 C1 H10 108.781 C2 O3 H5 107.682
O3 C2 H7 112.881 O3 C2 H8 112.881
O4 C1 H9 112.881 O4 C1 H10 112.881
H7 C2 H8 108.509 H9 C1 H10 108.509
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability