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: B3LYP_cp_opt/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP_cp_opt/6-31+G**
 hartrees
Energy at 0K-231.483907
Energy at 298.15K-231.491720
Nuclear repulsion energy83.389340
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 B3LYP_cp_opt/6-31+G**
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 3895 3756 95.59      
2 A 3660 3529 451.80      
3 A 3144 3031 17.04      
4 A 3143 3031 20.40      
5 A 3057 2948 0.00      
6 A 3053 2944 107.76      
7 A 3004 2896 71.60      
8 A 2994 2887 52.58      
9 A 1629 1571 58.57      
10 A 1518 1463 2.71      
11 A 1500 1446 14.50      
12 A 1497 1443 16.22      
13 A 1492 1438 1.51      
14 A 1487 1433 0.03      
15 A 1465 1413 2.22      
16 A 1270 1224 6.10      
17 A 1194 1152 6.10      
18 A 1191 1149 89.38      
19 A 1162 1121 0.00      
20 A 1114 1074 59.58      
21 A 930 896 57.04      
22 A 634 611 87.08      
23 A 414 400 8.71      
24 A 336 324 112.61      
25 A 247 238 20.63      
26 A 201 194 0.05      
27 A 150 145 2.81      
28 A 124 120 139.79      
29 A 44 42 10.43      
30 A 37 35 11.86      

Unscaled Zero Point Vibrational Energy (zpe) 22793.1 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 21977.1 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 B3LYP_cp_opt/6-31+G**
ABC
0.31238 0.10907 0.08556

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.485 0.000 -0.056
O2 2.437 0.000 0.156
O3 -0.410 0.000 -0.315
C4 -1.088 1.186 0.080
C5 -1.088 -1.186 0.080
H6 2.898 -0.000 -0.690
H7 -1.200 1.234 1.172
H8 -0.483 2.029 -0.257
H9 -2.083 1.241 -0.386
H10 -0.483 -2.029 -0.257
H11 -1.200 -1.234 1.172
H12 -2.083 -1.241 -0.386

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.97471.91332.83702.83701.54863.20052.83453.79222.83453.20053.7922
O20.97472.88583.72003.72000.96403.97273.57994.71803.57993.97274.7180
O31.91332.88581.42171.42173.32972.08732.03162.08392.03162.08732.0839
C42.83703.72001.42172.37144.22981.09941.09161.09933.28892.65712.6639
C52.83703.72001.42172.37144.22982.65713.28892.66391.09161.09941.0993
H61.54860.96403.32974.22984.22984.66773.96735.14203.96734.66775.1420
H73.20053.97272.08731.09942.65714.66771.78601.79113.63392.46753.0552
H82.83453.57992.03161.09163.28893.96731.78601.78774.05893.63393.6432
H93.79224.71802.08391.09932.66395.14201.79111.78773.64323.05522.4828
H102.83453.57992.03163.28891.09163.96733.63394.05893.64321.78601.7877
H113.20053.97272.08732.65711.09944.66772.46753.63393.05521.78601.7911
H123.79224.71802.08392.66391.09935.14203.05523.64322.48281.78771.7911

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 106.023 H1 O3 C4 115.790
H1 O3 C5 115.790 O2 H1 O3 175.201
O3 C4 H7 111.136 O3 C4 H8 107.141
O3 C4 H9 110.856 O3 C5 H10 107.141
O3 C5 H11 111.136 O3 C5 H12 110.856
C4 O3 C5 113.027 H7 C4 H8 109.209
H7 C4 H9 109.094 H8 C4 H9 109.363
H10 C5 H11 109.209 H10 C5 H12 109.362
H11 C5 H12 109.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.352      
4 C -0.222      
5 C -0.222      
6 H 0.000      
7 H 0.125      
8 H 0.148      
9 H 0.125      
10 H 0.148      
11 H 0.125      
12 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.903 0.000 -1.161 3.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.097 -0.001 -0.116
y -0.001 -17.279 -0.000
z -0.116 -0.000 -20.844
Traceless
 xyz
x -0.036 -0.001 -0.116
y -0.001 2.692 -0.000
z -0.116 -0.000 -2.656
Polar
3z2-r2-5.312
x2-y2-1.818
xy-0.001
xz-0.116
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.202 -0.000 0.021
y -0.000 5.145 0.000
z 0.021 0.000 4.186


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