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/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-230.197470
Energy at 298.15K-230.205204
HF Energy-230.197470
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy132.898948
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/daug-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 4197 3797 139.08      
2 A 4055 3668 256.06      
3 A 3256 2945 29.59      
4 A 3254 2943 37.03      
5 A 3181 2877 125.36      
6 A 3180 2876 0.29      
7 A 3141 2841 70.95      
8 A 3128 2830 50.90      
9 A 1767 1598 72.33      
10 A 1635 1479 1.36      
11 A 1623 1468 2.89      
12 A 1620 1466 12.26      
13 A 1619 1465 10.62      
14 A 1609 1455 0.02      
15 A 1588 1436 4.85      
16 A 1393 1260 14.01      
17 A 1326 1199 147.93      
18 A 1304 1180 11.12      
19 A 1267 1146 0.00      
20 A 1216 1100 58.76      
21 A 1024 927 55.83      
22 A 558 505 84.43      
23 A 442 400 5.66      
24 A 294 266 80.73      
25 A 251 227 15.97      
26 A 196 177 0.01      
27 A 121 109 1.25      
28 A 109 99 114.67      
29 A 39 36 5.96      
30 A 30 27 6.85      

Unscaled Zero Point Vibrational Energy (zpe) 24211.3 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 21901.5 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 HF/daug-cc-pVTZ
ABC
0.32735 0.10021 0.07990

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.625 -0.016 0.033
O2 2.566 -0.008 0.127
O3 -0.417 -0.004 -0.163
C4 -1.130 1.177 0.038
C5 -1.161 -1.165 0.039
H6 2.919 -0.018 -0.744
H7 -1.509 1.238 1.055
H8 -0.458 2.004 -0.136
H9 -1.967 1.250 -0.651
H10 -0.511 -2.009 -0.135
H11 -1.541 -1.215 1.056
H12 -2.000 -1.216 -0.650

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.94572.05183.00283.01451.50913.52682.90633.87022.92733.53703.8800
O20.94572.99753.88303.90430.94024.36113.64164.76903.68084.38064.7875
O32.05182.99751.39411.39413.38602.05382.00802.05292.00812.05382.0529
C43.00283.88301.39412.34214.29381.08661.07971.08673.25052.63232.6378
C53.01453.90431.39412.34214.31002.63203.25042.63801.07981.08661.0867
H61.50910.94023.38604.29384.31004.94153.98275.04904.01274.95595.0638
H73.52684.36112.05381.08662.63204.94151.76281.76663.59952.45403.0285
H82.90633.64162.00801.07973.25043.98271.76281.76394.01343.59953.6073
H93.87024.76902.05291.08672.63805.04901.76661.76393.60733.02942.4670
H102.92733.68082.00813.25051.07984.01273.59954.01343.60731.76281.7638
H113.53704.38062.05382.63231.08664.95592.45403.59953.02941.76281.7665
H123.88004.78752.05292.63781.08675.06383.02853.60732.46701.76381.7665

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 106.298 H1 O3 C4 120.030
H1 O3 C5 120.853 O2 H1 O3 179.161
O3 C4 H7 111.166 O3 C4 H8 107.848
O3 C4 H9 111.082 O3 C5 H10 107.854
O3 C5 H11 111.169 O3 C5 H12 111.088
C4 O3 C5 114.279 H7 C4 H8 108.923
H7 C4 H9 108.755 H8 C4 H9 109.019
H10 C5 H11 108.921 H10 C5 H12 109.008
H11 C5 H12 108.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.776      
2 O -0.771      
3 O -0.462      
4 C -1.669      
5 C -1.670      
6 H -0.119      
7 H 0.586      
8 H 0.697      
9 H 0.676      
10 H 0.695      
11 H 0.587      
12 H 0.673      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.920 -0.009 -1.235 3.171
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.262 -0.034 -5.207
y -0.034 -24.441 0.032
z -5.207 0.032 -25.829
Traceless
 xyz
x -4.127 -0.034 -5.207
y -0.034 3.105 0.032
z -5.207 0.032 1.022
Polar
3z2-r22.044
x2-y2-4.822
xy-0.034
xz-5.207
yz0.032


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.913 0.008 -0.069
y 0.008 6.138 0.001
z -0.069 0.001 5.282


<r2> (average value of r2) Å2
<r2> 145.142
(<r2>)1/2 12.047