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

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-231.175426
Energy at 298.15K-231.183530
HF Energy-231.175426
Nuclear repulsion energy135.099825
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 PBE1PBE/6-31G*
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 3882 3689 74.34      
2 A 3709 3525 241.52      
3 A 3190 3032 7.89      
4 A 3174 3016 23.25      
5 A 3088 2934 22.01      
6 A 3080 2927 91.61      
7 A 3031 2880 59.47      
8 A 3020 2869 46.87      
9 A 1744 1658 75.01      
10 A 1547 1470 1.33      
11 A 1527 1451 14.96      
12 A 1523 1447 13.69      
13 A 1514 1439 2.90      
14 A 1510 1434 1.29      
15 A 1481 1408 2.20      
16 A 1289 1225 4.07      
17 A 1240 1178 121.28      
18 A 1215 1154 6.69      
19 A 1180 1122 0.06      
20 A 1147 1090 21.89      
21 A 984 935 49.83      
22 A 663 630 207.71      
23 A 423 402 3.42      
24 A 298 284 76.75      
25 A 259 246 30.81      
26 A 225 213 3.26      
27 A 182 173 92.67      
28 A 172 163 11.97      
29 A 101 96 11.05      
30 A 47 45 2.43      

Unscaled Zero Point Vibrational Energy (zpe) 23221.5 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22067.4 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 PBE1PBE/6-31G*
ABC
0.37481 0.10860 0.08861

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.423 -0.514 0.110
O2 2.371 -0.298 0.140
O3 -0.416 -0.148 -0.228
C4 -0.461 1.237 0.028
C5 -1.626 -0.793 0.074
H6 2.665 -0.454 -0.765
H7 -0.746 1.441 1.071
H8 0.547 1.619 -0.146
H9 -1.176 1.741 -0.638
H10 -1.495 -1.855 -0.148
H11 -1.891 -0.677 1.136
H12 -2.452 -0.398 -0.537

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.97251.90552.57323.06231.52003.07472.31973.52173.22203.47343.9307
O20.97252.81523.22314.02820.96443.68922.66154.16514.17774.39344.8715
O31.90552.81521.40871.40433.14192.07902.01322.07702.02112.07782.0747
C42.57323.22311.40872.34063.64111.10051.09151.10023.26442.63322.6376
C53.06234.02821.40432.34064.38502.59993.25322.67021.09251.10081.1006
H61.52000.96443.14193.64114.38504.31263.02744.42584.43244.94155.1221
H73.07473.68922.07901.10052.59994.31261.78441.78813.59292.40852.9799
H82.31972.66152.01321.09153.25323.02741.78441.79624.02883.58533.6349
H93.52174.16512.07701.10022.67024.42581.78811.79623.64293.08312.4928
H103.22204.17772.02113.26441.09254.43243.59294.02883.64291.78671.7855
H113.47344.39342.07782.63321.10084.94152.40853.58533.08311.78671.7865
H123.93074.87152.07472.63761.10065.12212.97993.63492.49281.78551.7865

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 103.394 H1 O3 C4 100.805
H1 O3 C5 134.860 O2 H1 O3 154.625
O3 C4 H7 111.315 O3 C4 H8 106.573
O3 C4 H9 111.169 O3 C5 H10 107.429
O3 C5 H11 111.508 O3 C5 H12 111.268
C4 O3 C5 112.626 H7 C4 H8 108.991
H7 C4 H9 108.684 H8 C4 H9 110.076
H10 C5 H11 109.092 H10 C5 H12 109.004
H11 C5 H12 108.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.430      
2 O -0.847      
3 O -0.472      
4 C -0.280      
5 C -0.267      
6 H 0.391      
7 H 0.162      
8 H 0.205      
9 H 0.161      
10 H 0.190      
11 H 0.164      
12 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.763 0.079 -1.128 2.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.622 0.266 -4.969
y 0.266 -23.991 0.641
z -4.969 0.641 -25.624
Traceless
 xyz
x -3.815 0.266 -4.969
y 0.266 3.132 0.641
z -4.969 0.641 0.683
Polar
3z2-r21.366
x2-y2-4.631
xy0.266
xz-4.969
yz0.641


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.324 0.180 -0.131
y 0.180 4.743 0.031
z -0.131 0.031 4.357


<r2> (average value of r2) Å2
<r2> 133.449
(<r2>)1/2 11.552