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: B3LYPultrafine/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 B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-231.484972
Energy at 298.15K-231.492894
Counterpoise corrected energy-231.483907
CP Energy at 298.15K-231.491720
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy133.808703
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 B3LYPultrafine/6-31+G**
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 3892 3747 94.26      
2 A 3640 3504 492.10      
3 A 3144 3027 17.36      
4 A 3144 3026 19.64      
5 A 3060 2946 0.01      
6 A 3056 2942 104.67      
7 A 3006 2894 69.92      
8 A 2996 2885 53.51      
9 A 1632 1571 51.39      
10 A 1515 1459 3.77      
11 A 1499 1443 13.73      
12 A 1498 1442 16.85      
13 A 1491 1436 1.26      
14 A 1487 1432 0.07      
15 A 1464 1410 2.11      
16 A 1270 1223 6.73      
17 A 1195 1151 5.75      
18 A 1190 1146 87.59      
19 A 1163 1119 0.02      
20 A 1114 1072 62.45      
21 A 929 894 55.42      
22 A 675 650 80.26      
23 A 415 400 10.43      
24 A 357 343 101.72      
25 A 253 243 24.80      
26 A 200 193 0.10      
27 A 166 160 2.31      
28 A 124 120 133.60      
29 A 49 47 12.07      
30 A 48 46 12.96      

Unscaled Zero Point Vibrational Energy (zpe) 22836.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 21984.2 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 B3LYPultrafine/6-31+G**
ABC
0.30938 0.11349 0.08850

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.436 -0.000 -0.082
O2 -2.381 -0.000 0.162
O3 0.417 -0.000 -0.359
C4 1.059 -1.186 0.092
C5 1.059 1.186 0.092
H6 -2.869 -0.000 -0.669
H7 1.075 -1.233 1.191
H8 0.487 -2.030 -0.296
H9 2.090 -1.239 -0.286
H10 0.486 2.030 -0.296
H11 1.075 1.233 1.191
H12 2.090 1.239 -0.286

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.97591.87312.76802.76791.54923.07322.80403.74252.80383.07313.7425
O20.97592.84553.63933.63910.96413.81063.54304.66063.54273.81044.6605
O31.87312.84551.42231.42233.30072.08712.03222.08322.03222.08712.0832
C42.76803.63931.42232.37174.17381.09921.09151.09913.28952.65682.6620
C52.76793.63911.42232.37174.17372.65683.28952.66201.09151.09921.0991
H61.54920.96413.30074.17384.17374.53183.93995.12603.93984.53175.1259
H73.07323.81062.08711.09922.65684.53181.78621.79183.63392.46673.0535
H82.80403.54302.03221.09153.28953.93991.78621.78764.06003.63393.6411
H93.74254.66062.08321.09912.66205.12601.79181.78763.64113.05352.4783
H102.80383.54272.03223.28951.09153.93983.63394.06003.64111.78621.7876
H113.07313.81042.08712.65681.09924.53172.46673.63393.05351.78621.7918
H123.74254.66052.08322.66201.09915.12593.05353.64112.47831.78761.7918

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 105.978 H1 O3 C4 113.568
H1 O3 C5 113.562 O2 H1 O3 174.025
O3 C4 H7 111.078 O3 C4 H8 107.145
O3 C4 H9 110.767 O3 C5 H10 107.145
O3 C5 H11 111.078 O3 C5 H12 110.767
C4 O3 C5 112.971 H7 C4 H8 109.243
H7 C4 H9 109.188 H8 C4 H9 109.377
H10 C5 H11 109.243 H10 C5 H12 109.378
H11 C5 H12 109.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.430      
2 O -0.772      
3 O -0.422      
4 C -0.217      
5 C -0.217      
6 H 0.343      
7 H 0.139      
8 H 0.156      
9 H 0.132      
10 H 0.156      
11 H 0.139      
12 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.804 -0.000 -1.077 3.004
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.705 0.000 5.846
y 0.000 -24.614 0.000
z 5.846 0.000 -27.225
Traceless
 xyz
x -2.786 0.000 5.846
y 0.000 3.351 0.000
z 5.846 0.000 -0.565
Polar
3z2-r2-1.129
x2-y2-4.091
xy0.000
xz5.846
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.087 0.000 0.094
y 0.000 6.029 0.000
z 0.094 0.000 5.070


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