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

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-230.755912
Energy at 298.15K-230.763887
HF Energy-230.081816
Nuclear repulsion energy134.046764
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 MP3=FULL/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 3899 3658 107.94      
2 A 3769 3537 187.66      
3 A 3225 3026 13.19      
4 A 3210 3012 22.96      
5 A 3138 2944 15.00      
6 A 3132 2939 83.65      
7 A 3075 2885 44.92      
8 A 3068 2878 35.77      
9 A 1781 1671 75.57      
10 A 1576 1479 1.23      
11 A 1560 1464 12.39      
12 A 1557 1461 13.24      
13 A 1547 1452 0.52      
14 A 1544 1449 0.34      
15 A 1515 1421 3.98      
16 A 1314 1233 5.51      
17 A 1251 1174 109.08      
18 A 1235 1159 7.87      
19 A 1198 1124 0.02      
20 A 1157 1086 25.91      
21 A 982 921 45.98      
22 A 630 591 177.53      
23 A 435 408 5.34      
24 A 320 300 91.80      
25 A 260 244 25.33      
26 A 205 192 0.45      
27 A 167 157 16.00      
28 A 155 145 110.26      
29 A 79 75 10.96      
30 A 24 23 3.68      

Unscaled Zero Point Vibrational Energy (zpe) 23503.2 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 22053.0 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 MP3=FULL/6-31G*
ABC
0.35245 0.10714 0.08710

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.536 -0.364 0.077
O2 2.493 -0.228 0.137
O3 -0.428 -0.100 -0.213
C4 -0.678 1.281 0.034
C5 -1.531 -0.951 0.065
H6 2.817 -0.372 -0.760
H7 -1.398 1.436 0.846
H8 0.273 1.734 0.318
H9 -1.056 1.785 -0.863
H10 -1.211 -1.963 -0.177
H11 -1.823 -0.909 1.122
H12 -2.409 -0.697 -0.544

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.96902.00212.75783.12201.53033.52652.46073.49553.18853.55934.0068
O20.96902.94473.51334.08890.96454.29092.96904.20154.10244.47904.9712
O32.00212.94471.42471.42033.30142.10312.03402.09082.02152.09362.0953
C42.75783.51331.42472.38893.94611.09641.09091.09683.29422.69972.6911
C53.12204.08891.42032.38894.46262.51513.24432.92771.08911.09781.0980
H61.53030.96453.30143.94614.46264.85883.47384.43394.36985.03555.2400
H73.52654.29092.10311.09642.51514.85881.77721.77813.55522.39922.7399
H82.46072.96902.03401.09093.24433.47381.77721.77854.01483.46773.7209
H93.49554.20152.09081.09682.92774.43391.77811.77853.81383.43322.8450
H103.18854.10242.02153.29421.08914.36983.55524.01483.81381.78181.7809
H113.55934.47902.09362.69971.09785.03552.39923.46773.43321.78181.7785
H124.00684.97122.09532.69111.09805.24002.73993.72092.84501.78091.7785

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 104.637 H1 O3 C4 105.947
H1 O3 C5 130.866 O2 H1 O3 163.675
O3 C4 H7 112.413 O3 C4 H8 107.168
O3 C4 H9 111.368 O3 C5 H10 106.583
O3 C5 H11 111.852 O3 C5 H12 111.987
C4 O3 C5 114.214 H7 C4 H8 108.686
H7 C4 H9 108.338 H8 C4 H9 108.777
H10 C5 H11 109.131 H10 C5 H12 109.034
H11 C5 H12 108.191
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability