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

using model chemistry: PBEPBEultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-229.884420
Energy at 298.15K-229.893218
Counterpoise corrected energy-229.869448
CP Energy at 298.15K-229.877395
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy134.848802
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 PBEPBEultrafine/3-21G
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 3395 3364 27.75      
2 A 3124 3096 235.38      
3 A 3068 3040 19.51      
4 A 3041 3013 1.25      
5 A 2991 2964 50.25      
6 A 2974 2947 67.70      
7 A 2929 2902 81.77      
8 A 2920 2893 42.66      
9 A 1692 1677 69.00      
10 A 1542 1528 3.15      
11 A 1535 1521 7.45      
12 A 1515 1501 19.02      
13 A 1498 1484 7.57      
14 A 1458 1445 8.02      
15 A 1423 1410 10.23      
16 A 1227 1216 2.07      
17 A 1146 1135 2.61      
18 A 1123 1113 34.62      
19 A 1115 1105 0.46      
20 A 1047 1038 55.90      
21 A 917 909 223.42      
22 A 862 854 128.68      
23 A 419 416 2.80      
24 A 398 395 65.71      
25 A 367 364 91.79      
26 A 277 275 44.70      
27 A 251 249 0.56      
28 A 232 230 5.37      
29 A 175 173 15.60      
30 A 68 68 3.56      

Unscaled Zero Point Vibrational Energy (zpe) 22363.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22160.1 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 PBEPBEultrafine/3-21G
ABC
0.40755 0.11259 0.09268

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.260 -0.681 0.162
O2 2.243 -0.403 0.132
O3 -0.390 -0.232 -0.139
C4 -0.173 1.220 0.011
C5 -1.793 -0.603 0.044
H6 2.449 -0.457 -0.853
H7 -0.598 1.596 0.963
H8 0.928 1.278 0.030
H9 -0.613 1.785 -0.833
H10 -1.838 -1.699 -0.054
H11 -2.168 -0.306 1.044
H12 -2.440 -0.139 -0.728

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H11.02241.73662.38543.05551.58023.04641.99143.25273.26743.55943.8433
O21.02242.65272.91294.04141.00783.57212.13633.72484.28554.50574.7680
O31.73662.65271.47511.46222.93662.14492.01122.14392.06302.13732.1341
C42.38542.91291.47512.43863.23031.10851.10311.10743.36072.71582.7439
C53.05554.04141.46222.43864.33812.66673.30772.80401.10111.10941.1087
H61.58021.00782.93663.23034.33814.09892.47023.79504.53434.99454.9007
H73.04643.57212.14491.10852.66674.09891.81711.80673.66502.46823.0435
H81.99142.13632.01121.10313.30772.47021.81711.83794.06433.62303.7313
H93.25273.72482.14391.10742.80403.79501.80671.83793.77403.21182.6546
H103.26744.28552.06303.36071.10114.53433.66504.06433.77401.80441.8027
H113.55944.50572.13732.71581.10944.99452.46823.62303.21181.80441.8005
H123.84334.76802.13412.74391.10874.90073.04353.73132.65461.80271.8005

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 102.220 H1 O3 C4 95.581
H1 O3 C5 145.444 O2 H1 O3 146.929
O3 C4 H7 111.449 O3 C4 H8 101.563
O3 C4 H9 111.435 O3 C5 H10 106.330
O3 C5 H11 111.695 O3 C5 H12 111.473
C4 O3 C5 112.237 H7 C4 H8 110.506
H7 C4 H9 109.244 H8 C4 H9 112.500
H10 C5 H11 109.434 H10 C5 H12 109.332
H11 C5 H12 108.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.337      
2 O -0.644      
3 O -0.445      
4 C -0.413      
5 C -0.370      
6 H 0.303      
7 H 0.192      
8 H 0.229      
9 H 0.191      
10 H 0.224      
11 H 0.198      
12 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.875 0.247 -1.253 3.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.272 0.879 -4.483
y 0.879 -24.424 0.607
z -4.483 0.607 -25.409
Traceless
 xyz
x -3.356 0.879 -4.483
y 0.879 2.417 0.607
z -4.483 0.607 0.939
Polar
3z2-r21.879
x2-y2-3.848
xy0.879
xz-4.483
yz0.607


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.712 0.120 -0.277
y 0.120 4.598 0.025
z -0.277 0.025 4.140


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