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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-230.805890
Energy at 298.15K 
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy134.187249
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.31462 0.11413 0.08908

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.405 -0.001 -0.128
O2 -2.332 -0.002 0.170
O3 0.434 -0.000 -0.421
C4 1.035 -1.179 0.112
C5 1.031 1.180 0.112
H6 -2.862 0.003 -0.634
H7 0.919 -1.214 1.198
H8 0.521 -2.024 -0.337
H9 2.097 -1.213 -0.143
H10 0.515 2.024 -0.336
H11 0.916 1.214 1.198
H12 2.093 1.218 -0.144

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.97371.86172.71932.71771.54292.93692.80113.70552.79792.93593.7043
O20.97372.82803.56693.56520.96273.61843.53394.60233.53033.61724.6009
O31.86172.82801.42651.42643.30252.08112.02772.07752.02752.08122.0774
C42.71933.56691.42652.35914.13971.09331.08601.09303.27552.63122.6330
C52.71773.56521.42642.35914.13502.63123.27562.63251.08601.09331.0930
H61.54290.96273.30254.13974.13504.37393.95555.12963.94654.36995.1255
H72.93693.61842.08111.09332.63124.37391.78111.78553.60552.42803.0158
H82.80113.53392.02771.08603.27563.95551.78111.78264.04813.60583.6086
H93.70554.60232.07751.09302.63255.12961.78551.78263.60843.01492.4318
H102.79793.53032.02753.27551.08603.94653.60554.04813.60841.78091.7825
H112.93593.61722.08122.63121.09334.36992.42803.60583.01491.78091.7855
H123.70434.60092.07742.63301.09305.12553.01583.60862.43181.78251.7855

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 105.642 H1 O3 C4 110.890
H1 O3 C5 110.796 O2 H1 O3 171.313
O3 C4 H7 110.668 O3 C4 H8 106.839
O3 C4 H9 110.387 O3 C5 H10 106.825
O3 C5 H11 110.684 O3 C5 H12 110.392
C4 O3 C5 111.572 H7 C4 H8 109.626
H7 C4 H9 109.502 H8 C4 H9 109.780
H10 C5 H11 109.614 H10 C5 H12 109.777
H11 C5 H12 109.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.440      
2 O -0.786      
3 O -0.494      
4 C -0.123      
5 C -0.120      
6 H 0.356      
7 H 0.101      
8 H 0.149      
9 H 0.119      
10 H 0.135      
11 H 0.114      
12 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.067 -0.002 -1.173 3.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.634 -0.185 -5.566
y -0.185 -24.492 0.696
z -5.566 0.696 -26.007
Traceless
 xyz
x -4.385 -0.185 -5.566
y -0.185 3.329 0.696
z -5.566 0.696 1.056
Polar
3z2-r22.112
x2-y2-5.142
xy-0.185
xz-5.566
yz0.696


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.607 0.159 -0.081
y 0.159 5.511 -0.074
z -0.081 -0.074 4.813


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