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All results from a given calculation for H2OCH3OCH3 (water dimethylether dimer)

using model chemistry: PBEPBEultrafine_cp_opt/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine_cp_opt/3-21G
 hartrees
Energy at 0K-229.869448
Energy at 298.15K-229.877395
Nuclear repulsion energy81.673263
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 PBEPBEultrafine_cp_opt/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 A 3397 3366 27.72      
2 A 3153 3125 235.97      
3 A 3067 3039 13.49      
4 A 3064 3036 18.93      
5 A 2971 2944 37.04      
6 A 2963 2936 88.47      
7 A 2925 2899 56.14      
8 A 2914 2887 44.47      
9 A 1695 1679 35.66      
10 A 1541 1526 1.01      
11 A 1520 1506 19.19      
12 A 1503 1490 19.33      
13 A 1496 1482 0.42      
14 A 1471 1458 1.35      
15 A 1433 1419 2.43      
16 A 1215 1204 0.45      
17 A 1146 1136 1.09      
18 A 1114 1104 29.34      
19 A 1111 1101 8.36      
20 A 1054 1044 55.71      
21 A 871 863 26.28      
22 A 692 685 164.91      
23 A 400 397 8.30      
24 A 365 362 103.70      
25 A 258 255 4.68      
26 A 243 240 6.09      
27 A 169 167 3.15      
28 A 128 127 101.72      
29 A 55 55 10.78      
30 A 36 35 2.70      

Unscaled Zero Point Vibrational Energy (zpe) 21983.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 21783.0 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 PBEPBEultrafine_cp_opt/3-21G
ABC
0.33885 0.10529 0.08402

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.428 -0.353 0.074
O2 2.439 -0.232 0.135
O3 -0.362 -0.135 -0.175
C4 -0.617 1.296 0.014
C5 -1.578 -0.913 0.061
H6 2.758 -0.610 -0.742
H7 -1.006 1.515 1.030
H8 0.361 1.787 -0.115
H9 -1.338 1.686 -0.733
H10 -1.299 -1.969 -0.079
H11 -1.967 -0.770 1.090
H12 -2.381 -0.647 -0.658

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H11.01981.82032.62773.05731.58153.21382.39943.52993.17363.56863.8894
O21.01982.81953.41844.07421.00703.96472.90844.32394.12734.54034.9018
O31.82032.81951.46581.46233.20682.14182.05452.14022.06202.14022.1380
C42.62773.41841.46582.40973.94891.10971.10141.10923.33732.69302.7094
C53.05734.07421.46232.40974.42002.67593.32862.72831.10131.11001.1098
H61.58151.00703.20683.94894.42004.67163.44774.69564.33015.07105.1398
H73.21383.96472.14181.10972.67594.67161.80361.80213.66822.47973.0681
H82.39942.90842.05451.10143.32863.44771.80361.81034.10713.66233.7065
H93.52994.32392.14021.10922.72834.69561.80211.81033.71363.12322.5572
H103.17364.12732.06203.33731.10134.33013.66824.10713.71361.80361.8031
H113.56864.54032.14022.69301.11005.07102.47973.66233.12321.80361.8003
H123.88944.90182.13802.70941.10985.13983.06813.70652.55721.80311.8003

picture of water dimethylether dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H6 102.582 H1 O3 C4 105.686
H1 O3 C5 137.018 O2 H1 O3 165.592
O3 C4 H7 111.787 O3 C4 H8 105.433
O3 C4 H9 111.686 O3 C5 H10 106.238
O3 C5 H11 111.877 O3 C5 H12 111.713
C4 O3 C5 110.758 H7 C4 H8 109.315
H7 C4 H9 108.613 H8 C4 H9 109.956
H10 C5 H11 109.294 H10 C5 H12 109.272
H11 C5 H12 108.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.431      
4 C -0.377      
5 C -0.372      
6 H 0.000      
7 H 0.185      
8 H 0.222      
9 H 0.189      
10 H 0.219      
11 H 0.183      
12 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.479 -0.152 -1.182 3.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.927 0.930 -0.150
y 0.930 -17.181 -0.095
z -0.150 -0.095 -20.241
Traceless
 xyz
x 0.784 0.930 -0.150
y 0.930 1.903 -0.095
z -0.150 -0.095 -2.687
Polar
3z2-r2-5.375
x2-y2-0.746
xy0.930
xz-0.150
yz-0.095


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.978 0.585 -0.016
y 0.585 4.132 -0.021
z -0.016 -0.021 3.400


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000