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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-229.884428
Energy at 298.15K-229.893240
Counterpoise corrected energy-229.869449
CP Energy at 298.15K-229.877419
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy134.846541
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 PBEPBE/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 3396 3365 27.60      
2 A 3124 3096 235.48      
3 A 3068 3040 19.52      
4 A 3041 3013 1.26      
5 A 2991 2964 49.26      
6 A 2974 2947 68.74      
7 A 2929 2903 81.10      
8 A 2920 2894 43.45      
9 A 1692 1676 68.87      
10 A 1542 1528 2.58      
11 A 1534 1520 8.06      
12 A 1515 1502 18.95      
13 A 1499 1486 7.47      
14 A 1460 1446 7.94      
15 A 1423 1410 10.56      
16 A 1227 1216 2.05      
17 A 1146 1135 2.32      
18 A 1123 1113 34.80      
19 A 1116 1106 0.49      
20 A 1048 1038 56.11      
21 A 919 910 227.49      
22 A 862 854 123.64      
23 A 419 415 2.63      
24 A 399 395 69.46      
25 A 367 364 90.41      
26 A 277 274 42.72      
27 A 251 249 0.76      
28 A 236 234 5.80      
29 A 175 174 15.84      
30 A 72 72 3.44      

Unscaled Zero Point Vibrational Energy (zpe) 22372.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22168.9 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 PBEPBE/3-21G
ABC
0.40778 0.11255 0.09267

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.260 -0.682 0.161
O2 2.243 -0.403 0.131
O3 -0.391 -0.232 -0.139
C4 -0.173 1.219 0.011
C5 -1.793 -0.603 0.043
H6 2.450 -0.455 -0.854
H7 -0.597 1.597 0.963
H8 0.929 1.277 0.030
H9 -0.612 1.784 -0.834
H10 -1.839 -1.698 -0.054
H11 -2.170 -0.305 1.044
H12 -2.440 -0.138 -0.728

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H11.02241.73702.38523.05641.58033.04711.99063.25213.26843.56123.8435
O21.02242.65312.91234.04211.00783.57182.13513.72384.28654.50714.7681
O31.73702.65311.47531.46202.93752.14532.01132.14412.06272.13732.1339
C42.38522.91231.47532.43873.22931.10851.10301.10743.36082.71672.7437
C53.05644.04211.46202.43874.33922.66783.30782.80401.10111.10931.1087
H61.58031.00782.93753.22934.33924.09812.46833.79334.53614.99614.9010
H73.04713.57182.14531.10852.66784.09811.81691.80673.66612.47013.0443
H81.99062.13512.01131.10303.30782.46831.81691.83794.06433.62383.7311
H93.25213.72382.14411.10742.80403.79331.80671.83793.77383.21242.6543
H103.26844.28652.06273.36081.10114.53613.66614.06433.77381.80431.8027
H113.56124.50712.13732.71671.10934.99612.47013.62383.21241.80431.8004
H123.84354.76812.13392.74371.10874.90103.04433.73112.65431.80271.8004

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 102.230 H1 O3 C4 95.554
H1 O3 C5 145.525 O2 H1 O3 146.938
O3 C4 H7 111.472 O3 C4 H8 101.560
O3 C4 H9 111.442 O3 C5 H10 106.324
O3 C5 H11 111.711 O3 C5 H12 111.476
C4 O3 C5 112.251 H7 C4 H8 110.486
H7 C4 H9 109.239 H8 C4 H9 112.497
H10 C5 H11 109.423 H10 C5 H12 109.331
H11 C5 H12 108.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/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
  -2.871 0.249 -1.256 3.144
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.262 0.883 -4.484
y 0.883 -24.428 0.607
z -4.484 0.607 -25.410
Traceless
 xyz
x -3.344 0.883 -4.484
y 0.883 2.408 0.607
z -4.484 0.607 0.935
Polar
3z2-r21.871
x2-y2-3.835
xy0.883
xz-4.484
yz0.607


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.712 0.121 -0.277
y 0.121 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