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: HF_cp/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 HF_cp/6-311+G(3df,2pd)
 hartrees
Energy at 0K-230.191131
Energy at 298.15K-230.182214
Nuclear repulsion energy 
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 HF/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 4225 3827 142.30      
2 A 4083 3699 263.97      
3 A 3256 2950 29.50      
4 A 3254 2948 36.93      
5 A 3181 2882 124.65      
6 A 3180 2881 0.30      
7 A 3140 2845 70.00      
8 A 3127 2833 51.44      
9 A 1772 1605 72.19      
10 A 1637 1483 1.56      
11 A 1625 1472 2.94      
12 A 1622 1470 12.87      
13 A 1621 1468 10.75      
14 A 1611 1459 0.01      
15 A 1590 1440 4.71      
16 A 1395 1264 13.88      
17 A 1329 1204 149.29      
18 A 1305 1183 11.06      
19 A 1268 1149 0.01      
20 A 1218 1103 57.83      
21 A 1027 930 55.69      
22 A 578 524 88.07      
23 A 443 401 5.85      
24 A 307 278 85.23      
25 A 253 230 13.51      
26 A 197 178 0.00      
27 A 127 115 1.30      
28 A 112 101 118.13      
29 A 38 35 6.44      
30 A 33 30 6.60      

Unscaled Zero Point Vibrational Energy (zpe) 24275.3 cm-1
Scaled (by 0.906) Zero Point Vibrational Energy (zpe) 21993.4 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 HF/6-311+G(3df,2pd)
ABC
0.32688 0.10106 0.08052

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.614 -0.011 0.029
O2 2.554 -0.006 0.130
O3 -0.420 -0.003 -0.186
C4 -1.127 1.175 0.044
C5 -1.150 -1.166 0.045
H6 2.912 -0.014 -0.738
H7 -1.465 1.234 1.075
H8 -0.465 2.003 -0.156
H9 -1.991 1.246 -0.611
H10 -0.505 -2.007 -0.155
H11 -1.489 -1.218 1.076
H12 -2.016 -1.220 -0.610

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.94522.04592.98712.99611.50743.48262.90083.87142.91713.49033.8790
O20.94522.99113.86693.88270.93934.31093.63754.77213.66674.32534.7859
O32.04592.99111.39251.39243.37782.05232.00662.05122.00662.05232.0512
C42.98713.86691.39252.34034.28281.08631.07941.08643.24832.63082.6367
C52.99613.88271.39242.34034.29452.63033.24832.63701.07951.08631.0864
H61.50740.93933.37784.28284.29454.89963.97665.06403.99854.90985.0748
H73.48264.31092.05231.08632.63034.89961.76221.76613.59752.45263.0274
H82.90083.63752.00661.07943.24833.97661.76221.76334.01073.59753.6058
H93.87144.77212.05121.08642.63705.06401.76611.76333.60583.02862.4666
H102.91713.66672.00663.24831.07953.99853.59754.01073.60581.76221.7632
H113.49034.32532.05232.63081.08634.90982.45263.59753.02861.76221.7661
H123.87904.78592.05122.63671.08645.07483.02743.60582.46661.76321.7661

picture of water dimethylether dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.360      
2 O -0.466      
3 O -0.816      
4 C 0.351      
5 C 0.352      
6 H 0.124      
7 H 0.016      
8 H 0.022      
9 H 0.011      
10 H 0.021      
11 H 0.016      
12 H 0.011      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.908 -0.007 -1.212 3.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


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