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

using model chemistry: PBEPBEultrafine_cp_opt/6-31G*

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/6-31G*
 hartrees
Energy at 0K-231.151992
Energy at 298.15K-231.159750
Nuclear repulsion energy83.237897
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/6-31G*
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 3709 3656 48.19      
2 A 3501 3451 325.40      
3 A 3081 3037 20.79      
4 A 3080 3036 22.73      
5 A 2981 2938 0.02      
6 A 2975 2932 121.87      
7 A 2932 2890 60.40      
8 A 2921 2879 51.47      
9 A 1710 1686 49.22      
10 A 1499 1478 1.33      
11 A 1477 1456 15.05      
12 A 1468 1447 13.34      
13 A 1465 1444 1.27      
14 A 1458 1437 0.02      
15 A 1433 1412 4.41      
16 A 1239 1221 3.85      
17 A 1172 1155 3.35      
18 A 1165 1148 91.21      
19 A 1135 1119 0.00      
20 A 1101 1085 38.49      
21 A 930 916 44.24      
22 A 608 599 81.70      
23 A 410 404 8.44      
24 A 336 332 90.91      
25 A 259 256 22.39      
26 A 216 213 0.07      
27 A 159 157 2.42      
28 A 108 107 107.79      
29 A 37 37 9.50      
30 A 31 31 8.10      

Unscaled Zero Point Vibrational Energy (zpe) 22297.0 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 21978.1 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/6-31G*
ABC
0.30823 0.11073 0.08745

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.456 -0.001 -0.077
O2 2.411 -0.000 0.170
O3 -0.450 -0.000 -0.410
C4 -1.059 1.176 0.107
C5 -1.061 -1.176 0.107
H6 2.857 -0.001 -0.698
H7 -0.986 1.224 1.213
H8 -0.523 2.034 -0.326
H9 -2.130 1.234 -0.179
H10 -0.525 -2.035 -0.326
H11 -0.988 -1.224 1.213
H12 -2.131 -1.233 -0.179

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.98611.93512.78342.78391.53233.02212.84963.79452.85043.02253.7949
O20.98612.91913.66483.66560.97593.75903.60464.71893.60613.75984.7195
O31.93512.91911.42201.42203.31982.10292.03762.09772.03762.10292.0977
C42.78343.66481.42202.35174.16811.11001.10091.10983.28352.64362.6519
C52.78393.66561.42202.35174.16872.64363.28352.65191.10091.11001.1098
H61.53230.97593.31984.16814.16874.46413.96315.16433.96424.46475.1648
H73.02213.75902.10291.11002.64364.46411.80031.80183.63342.44783.0470
H82.84963.60462.03761.10093.28353.96311.80031.80164.06903.63343.6446
H93.79454.71892.09771.10982.65195.16431.80181.80163.64463.04712.4667
H102.85043.60612.03763.28351.10093.96423.63344.06903.64461.80041.8016
H113.02253.75982.10292.64361.11004.46472.44783.63343.04711.80041.8018
H123.79494.71952.09772.65191.10985.16483.04703.64462.46671.80161.8018

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 102.696 H1 O3 C4 111.094
H1 O3 C5 111.124 O2 H1 O3 175.377
O3 C4 H7 111.715 O3 C4 H8 107.047
O3 C4 H9 111.299 O3 C5 H10 107.047
O3 C5 H11 111.715 O3 C5 H12 111.299
C4 O3 C5 111.568 H7 C4 H8 109.037
H7 C4 H9 108.526 H8 C4 H9 109.164
H10 C5 H11 109.037 H10 C5 H12 109.164
H11 C5 H12 108.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.405      
4 C -0.249      
5 C -0.249      
6 H 0.000      
7 H 0.140      
8 H 0.172      
9 H 0.142      
10 H 0.171      
11 H 0.139      
12 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.649 -0.000 -0.994 2.830
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.904 0.001 -0.305
y 0.001 -17.072 -0.000
z -0.305 -0.000 -20.472
Traceless
 xyz
x -0.132 0.001 -0.305
y 0.001 2.616 -0.000
z -0.305 -0.000 -2.484
Polar
3z2-r2-4.968
x2-y2-1.832
xy0.001
xz-0.305
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.007 0.485 0.001
y 0.485 4.499 -0.030
z 0.001 -0.030 3.734


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