return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-231.479203
Energy at 298.15K 
HF Energy-231.479203
Nuclear repulsion energy134.520510
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 wB97X-D/cc-pVTZ
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 3952 3778 76.76      
2 A 3770 3604 311.11      
3 A 3151 3012 12.26      
4 A 3149 3010 21.43      
5 A 3064 2929 1.62      
6 A 3057 2923 103.17      
7 A 3008 2876 66.51      
8 A 3001 2869 45.25      
9 A 1669 1596 56.68      
10 A 1523 1456 3.65      
11 A 1511 1444 4.04      
12 A 1510 1443 10.40      
13 A 1503 1437 12.12      
14 A 1499 1433 0.22      
15 A 1475 1410 2.81      
16 A 1293 1236 6.24      
17 A 1228 1174 110.50      
18 A 1211 1158 8.85      
19 A 1176 1124 0.35      
20 A 1148 1098 37.91      
21 A 968 925 51.97      
22 A 622 594 127.69      
23 A 434 415 4.76      
24 A 297 284 65.03      
25 A 268 256 19.48      
26 A 222 213 2.41      
27 A 170 163 98.80      
28 A 167 160 2.20      
29 A 75 72 5.33      
30 A 23i 22i 3.52      

Unscaled Zero Point Vibrational Energy (zpe) 23047.3 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 22033.2 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 wB97X-D/cc-pVTZ
ABC
0.35727 0.10721 0.08634

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.529 -0.366 0.073
O2 2.479 -0.232 0.136
O3 -0.428 -0.097 -0.211
C4 -0.673 1.277 0.035
C5 -1.521 -0.950 0.063
H6 2.800 -0.343 -0.757
H7 -1.390 1.428 0.846
H8 0.272 1.736 0.316
H9 -1.054 1.777 -0.859
H10 -1.205 -1.960 -0.180
H11 -1.808 -0.908 1.118
H12 -2.397 -0.694 -0.542

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.96181.99502.74733.10491.51863.51252.46053.48303.17493.53823.9872
O20.96182.93053.49634.06440.95554.27022.96244.18444.08174.44974.9447
O31.99502.93051.41721.41273.28282.09082.03162.08012.01842.08032.0842
C42.74733.49631.41722.38213.91351.09301.08791.09343.28682.68912.6808
C53.10494.06441.41272.38214.43952.50693.23862.91611.08581.09461.0949
H61.51860.95553.28283.91354.43954.82373.44454.39984.35765.00685.2133
H73.51254.27022.09081.09302.50694.82371.77161.77293.54492.38862.7282
H82.46052.96242.03161.08793.23863.44451.77161.77264.01063.45773.7098
H93.48304.18442.08011.09342.91614.39981.77291.77263.80123.41882.8304
H103.17494.08172.01843.28681.08584.35763.54494.01063.80121.77641.7758
H113.53824.44972.08032.68911.09465.00682.38863.45773.41881.77641.7746
H123.98724.94472.08422.68081.09495.21332.72823.70982.83041.77581.7746

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 104.747 H1 O3 C4 106.003
H1 O3 C5 130.547 O2 H1 O3 163.662
O3 C4 H7 112.149 O3 C4 H8 107.655
O3 C4 H9 111.240 O3 C5 H10 107.044
O3 C5 H11 111.505 O3 C5 H12 111.801
C4 O3 C5 114.649 H7 C4 H8 108.643
H7 C4 H9 108.363 H8 C4 H9 108.707
H10 C5 H11 109.117 H10 C5 H12 109.034
H11 C5 H12 108.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.245      
2 O -0.465      
3 O -0.301      
4 C -0.055      
5 C -0.047      
6 H 0.199      
7 H 0.058      
8 H 0.091      
9 H 0.065      
10 H 0.091      
11 H 0.057      
12 H 0.060      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.805 0.280 -1.165 3.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.074 0.809 -4.734
y 0.809 -24.406 0.417
z -4.734 0.417 -25.685
Traceless
 xyz
x -4.028 0.809 -4.734
y 0.809 2.973 0.417
z -4.734 0.417 1.055
Polar
3z2-r22.109
x2-y2-4.667
xy0.809
xz-4.734
yz0.417


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.175 0.197 -0.092
y 0.197 5.838 -0.007
z -0.092 -0.007 5.188


<r2> (average value of r2) Å2
<r2> 136.241
(<r2>)1/2 11.672