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

using model chemistry: HF_cp_opt/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 HF_cp_opt/3-21G
 hartrees
Energy at 0K-228.809022
Energy at 298.15K-228.817049
Nuclear repulsion energy83.026644
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_cp_opt/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 3903 3534 55.18      
2 A 3724 3372 269.25      
3 A 3295 2984 31.62      
4 A 3292 2982 25.36      
5 A 3231 2926 120.61      
6 A 3228 2923 0.00      
7 A 3187 2886 38.58      
8 A 3178 2878 33.15      
9 A 1841 1667 101.72      
10 A 1700 1539 0.55      
11 A 1685 1526 11.53      
12 A 1678 1520 13.92      
13 A 1669 1511 0.00      
14 A 1654 1498 0.00      
15 A 1610 1458 11.31      
16 A 1368 1239 2.55      
17 A 1288 1167 6.23      
18 A 1281 1160 91.14      
19 A 1257 1138 0.04      
20 A 1187 1075 65.10      
21 A 966 875 42.46      
22 A 714 646 187.18      
23 A 428 388 13.76      
24 A 379 343 123.43      
25 A 244 221 11.02      
26 A 226 204 0.02      
27 A 160 145 1.27      
28 A 111 100 128.80      
29 A 59 53 7.95      
30 A 28 25 19.44      

Unscaled Zero Point Vibrational Energy (zpe) 24284.2 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 21991.8 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_cp_opt/3-21G
ABC
0.31327 0.10584 0.08233

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.521 -0.000 0.090
O2 2.495 -0.000 0.120
O3 -0.359 -0.000 -0.108
C4 -1.128 1.206 0.023
C5 -1.129 -1.206 0.023
H6 2.814 -0.000 -0.792
H7 -1.613 1.257 0.992
H8 -0.440 2.031 -0.076
H9 -1.885 1.272 -0.752
H10 -0.440 -2.031 -0.076
H11 -1.613 -1.256 0.993
H12 -1.885 -1.271 -0.752

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.97431.89012.91152.91161.56503.49462.82813.73152.82833.49473.7316
O20.97432.86263.81963.81980.96604.38293.57434.64293.57464.38314.6431
O31.89012.86261.43641.43643.24532.08872.03312.08812.03302.08872.0881
C42.91153.81961.43642.41134.20221.08481.07931.08503.31072.69012.7035
C52.91163.81981.43642.41134.20222.69013.31072.70351.07931.08481.0850
H61.56500.96603.24534.20224.20224.93523.90214.86783.90204.93524.8678
H73.49464.38292.08871.08482.69014.93521.76521.76553.65042.51313.0835
H82.82813.57432.03311.07933.31073.90211.76521.76684.06233.65033.6677
H93.73154.64292.08811.08502.70354.86781.76551.76683.66773.08352.5429
H102.82833.57462.03303.31071.07933.90203.65044.06233.66771.76521.7668
H113.49474.38312.08872.69011.08484.93522.51313.65033.08351.76521.7655
H123.73164.64312.08812.70351.08504.86783.08353.66772.54291.76681.7655

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 107.523 H1 O3 C4 121.549
H1 O3 C5 121.558 O2 H1 O3 175.744
O3 C4 H7 111.114 O3 C4 H8 106.973
O3 C4 H9 111.054 O3 C5 H10 106.973
O3 C5 H11 111.114 O3 C5 H12 111.054
C4 O3 C5 114.148 H7 C4 H8 109.303
H7 C4 H9 108.915 H8 C4 H9 109.444
H10 C5 H11 109.303 H10 C5 H12 109.444
H11 C5 H12 108.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.644      
4 C -0.254      
5 C -0.249      
6 H 0.000      
7 H 0.178      
8 H 0.219      
9 H 0.180      
10 H 0.217      
11 H 0.177      
12 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -4.110 -0.001 -1.543 4.390
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.373 -0.002 -5.719
y -0.002 -22.387 0.001
z -5.719 0.001 -25.500
Traceless
 xyz
x -6.429 -0.002 -5.719
y -0.002 5.549 0.001
z -5.719 0.001 0.880
Polar
3z2-r21.760
x2-y2-7.986
xy-0.002
xz-5.719
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.458 0.462 0.002
y 0.462 3.811 -0.011
z 0.002 -0.011 3.169


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