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: B3LYP_cp_opt/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 B3LYP_cp_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-231.561547
Energy at 298.15K-231.569339
Nuclear repulsion energy83.716539
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 B3LYP_cp_opt/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 3897 3780 87.67      
2 A 3674 3563 458.27      
3 A 3123 3029 15.40      
4 A 3122 3028 18.63      
5 A 3039 2947 0.01      
6 A 3034 2943 95.85      
7 A 2991 2901 64.98      
8 A 2982 2893 46.52      
9 A 1647 1597 43.65      
10 A 1514 1469 3.72      
11 A 1499 1454 12.33      
12 A 1495 1451 15.35      
13 A 1491 1446 0.84      
14 A 1486 1441 0.13      
15 A 1463 1419 1.02      
16 A 1273 1235 6.77      
17 A 1195 1159 5.99      
18 A 1189 1153 77.44      
19 A 1163 1129 0.01      
20 A 1112 1079 65.98      
21 A 929 901 52.52      
22 A 625 606 57.99      
23 A 414 402 7.53      
24 A 336 326 88.19      
25 A 242 234 14.36      
26 A 200 194 0.01      
27 A 147 143 2.82      
28 A 123 119 110.23      
29 A 41 40 7.72      
30 A 37 36 6.93      

Unscaled Zero Point Vibrational Energy (zpe) 22738.7 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 22056.5 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 B3LYP_cp_opt/6-311+G(3df,2pd)
ABC
0.31587 0.10862 0.08531

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.497 -0.000 -0.052
O2 2.445 -0.000 0.153
O3 -0.404 -0.000 -0.293
C4 -1.093 1.181 0.073
C5 -1.094 -1.181 0.073
H6 2.890 -0.000 -0.697
H7 -1.247 1.230 1.156
H8 -0.481 2.024 -0.238
H9 -2.066 1.237 -0.426
H10 -0.481 -2.024 -0.238
H11 -1.247 -1.229 1.156
H12 -2.066 -1.237 -0.426

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.97021.91632.84962.84961.53543.24032.83613.79002.83633.24043.7900
O20.97022.88413.73123.73140.95974.01873.57944.71333.57964.01874.7135
O31.91632.88411.41581.41583.31902.07902.02642.07592.02642.07902.0759
C42.84963.73121.41582.36284.22561.09491.08721.09493.27832.64752.6541
C52.84963.73141.41582.36284.22572.64743.27832.65411.08721.09491.0949
H61.53540.95973.31904.22564.22574.69703.95875.11523.95904.69715.1153
H73.24034.01872.07901.09492.64744.69701.77811.78193.62172.45903.0428
H82.83613.57942.02641.08723.27833.95871.77811.77974.04843.62173.6308
H93.79004.71332.07591.09492.65415.11521.78191.77973.63083.04282.4740
H102.83633.57962.02643.27831.08723.95903.62174.04843.63081.77811.7797
H113.24044.01872.07902.64751.09494.69712.45903.62173.04281.77811.7819
H123.79004.71352.07592.65411.09495.11533.04283.63082.47401.77971.7819

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 105.418 H1 O3 C4 116.757
H1 O3 C5 116.762 O2 H1 O3 175.031
O3 C4 H7 111.151 O3 C4 H8 107.385
O3 C4 H9 110.899 O3 C5 H10 107.385
O3 C5 H11 111.151 O3 C5 H12 110.898
C4 O3 C5 113.110 H7 C4 H8 109.149
H7 C4 H9 108.923 H8 C4 H9 109.295
H10 C5 H11 109.149 H10 C5 H12 109.295
H11 C5 H12 108.923
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.602      
4 C 0.168      
5 C 0.166      
6 H 0.000      
7 H 0.042      
8 H 0.048      
9 H 0.045      
10 H 0.048      
11 H 0.044      
12 H 0.041      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.736 0.000 -1.043 2.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.884 0.000 -5.147
y 0.000 -24.791 0.000
z -5.147 0.000 -26.781
Traceless
 xyz
x -3.098 0.000 -5.147
y 0.000 3.041 0.000
z -5.147 0.000 0.057
Polar
3z2-r20.113
x2-y2-4.093
xy0.000
xz-5.147
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.621 0.228 -0.026
y 0.228 5.663 -0.031
z -0.026 -0.031 4.489


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