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

using model chemistry: MP2_cp/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2_cp/6-311+G(3df,2pd)
 hartrees
Energy at 0K-231.057940
Energy at 298.15K-231.049040
Nuclear repulsion energy 
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 MP2/6-311+G(3df,2pd)
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 3954 3756 105.65      
2 A 3692 3508 455.58      
3 A 3191 3031 13.55      
4 A 3191 3031 13.65      
5 A 3118 2962 0.06      
6 A 3111 2956 70.14      
7 A 3040 2888 46.95      
8 A 3037 2885 40.40      
9 A 1658 1575 39.49      
10 A 1532 1456 6.61      
11 A 1518 1442 10.25      
12 A 1517 1441 18.10      
13 A 1506 1430 0.04      
14 A 1501 1425 0.34      
15 A 1473 1399 1.18      
16 A 1282 1218 6.99      
17 A 1212 1151 6.17      
18 A 1210 1150 90.33      
19 A 1180 1121 0.00      
20 A 1132 1075 43.36      
21 A 952 904 43.32      
22 A 676 642 51.65      
23 A 421 400 18.60      
24 A 372 353 87.21      
25 A 271 258 28.63      
26 A 197 187 0.12      
27 A 176 167 4.07      
28 A 114 108 105.60      
29 A 42 40 14.61      
30 A 37 35 16.81      

Unscaled Zero Point Vibrational Energy (zpe) 23154.2 cm-1
Scaled (by 0.95) Zero Point Vibrational Energy (zpe) 21996.5 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 MP2/6-311+G(3df,2pd)
ABC
0.30622 0.12437 0.09689

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.487 -0.000 -0.498
C2 0.973 1.168 0.137
C3 0.975 -1.167 0.137
H4 0.566 -2.020 -0.395
H5 0.655 -1.203 1.181
H6 0.563 2.020 -0.395
H7 2.064 1.201 0.095
H8 0.653 1.204 1.181
H9 2.066 -1.199 0.095
O10 -2.245 -0.000 0.172
H11 -1.354 -0.001 -0.211
H12 -2.835 -0.003 -0.583

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9 O10 H11 H12
O11.41521.41522.02422.07262.02422.06982.07262.06982.81261.86323.3222
C21.41522.33443.25722.61021.08531.09251.09282.60723.42362.62704.0479
C31.41522.33441.08531.09283.25712.60692.61041.09253.42512.62824.0479
H42.02423.25721.08531.77724.04013.58633.58941.77883.50762.79313.9584
H52.07262.61021.09281.77723.58942.99112.40721.78083.29812.72444.0904
H62.02421.08533.25714.04013.58941.77881.77723.58633.50562.79153.9587
H72.06981.09252.60693.58632.99111.77881.78082.40034.47433.63655.0899
H82.07261.09282.61043.58942.40721.77721.78082.99193.29622.72304.0899
H92.06982.60721.09251.77881.78083.58632.40032.99194.47553.63745.0899
O102.81263.42363.42513.50763.29813.50564.47433.29624.47550.96940.9577
H111.86322.62702.62822.79312.72442.79153.63652.72303.63740.96941.5263
H123.32224.04794.04793.95844.09043.95875.08994.08995.08990.95771.5263

picture of water dimethylether dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.821      
2 C 0.338      
3 C 0.338      
4 H 0.023      
5 H 0.029      
6 H 0.023      
7 H 0.014      
8 H 0.029      
9 H 0.014      
10 O -0.447      
11 H 0.319      
12 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.081 -0.003 -0.647 2.179
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> 0.000
(<r2>)1/2 0.000