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 CH3OC2H5 (Ethane, methoxy-)

using model chemistry: SVWN/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at SVWN/6-31G*
 hartrees
Energy at 0K-193.315095
Energy at 298.15K-193.324047
HF Energy-193.315095
Nuclear repulsion energy134.479470
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 SVWN/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' 3096 3037 12.73      
2 A' 3076 3017 21.00      
3 A' 3004 2947 10.33      
4 A' 2898 2843 75.40      
5 A' 2873 2819 43.31      
6 A' 1499 1470 3.31      
7 A' 1470 1442 3.67      
8 A' 1460 1433 9.71      
9 A' 1436 1409 2.99      
10 A' 1391 1365 43.15      
11 A' 1347 1322 1.09      
12 A' 1237 1214 150.69      
13 A' 1191 1168 26.09      
14 A' 1103 1082 4.48      
15 A' 1064 1044 23.93      
16 A' 877 860 5.55      
17 A' 468 459 0.65      
18 A' 285 280 3.12      
19 A" 3091 3032 14.42      
20 A" 2939 2884 49.65      
21 A" 2896 2841 85.57      
22 A" 1441 1414 11.83      
23 A" 1438 1411 6.60      
24 A" 1258 1234 1.85      
25 A" 1175 1153 9.14      
26 A" 1139 1117 0.93      
27 A" 804 788 1.52      
28 A" 276 271 2.08      
29 A" 221 217 0.46      
30 A" 128 126 2.47      

Unscaled Zero Point Vibrational Energy (zpe) 23291.5 cm-1
Scaled (by 0.981) Zero Point Vibrational Energy (zpe) 22848.9 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 SVWN/6-31G*
ABC
0.93903 0.14218 0.13290

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.300 1.213 0.000
O2 0.003 0.712 0.000
C3 0.000 -0.685 0.000
C4 -1.423 -1.161 0.000
H5 1.240 2.313 0.000
H6 1.872 0.885 0.898
H7 1.872 0.885 -0.898
H8 0.548 -1.070 -0.893
H9 0.548 -1.070 0.893
H10 -1.469 -2.263 0.000
H11 -1.952 -0.788 0.892
H12 -1.952 -0.788 -0.892

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.39012.30023.61251.10201.11411.11412.56422.56424.44363.92113.9211
O21.39011.39672.35432.02342.08072.08072.06672.06673.31902.62092.6209
C32.30021.39671.50033.24442.60322.60321.11671.11672.15572.14862.1486
C43.61252.35431.50034.37773.98143.98142.16582.16581.10231.10261.1026
H51.10202.02343.24444.37771.80141.80143.56723.56725.31774.53924.5392
H61.11412.08072.60323.98141.80141.79622.96392.36154.67744.17424.5419
H71.11412.08072.60323.98141.80141.79622.36152.96394.67744.54194.1742
H82.56422.06671.11672.16583.56722.96392.36151.78602.50753.08522.5162
H92.56422.06671.11672.16583.56722.36152.96391.78602.50752.51623.0852
H104.44363.31902.15571.10235.31774.67744.67742.50752.50751.79011.7901
H113.92112.62092.14861.10264.53924.17424.54193.08522.51621.79011.7846
H123.92112.62092.14861.10264.53924.54194.17422.51623.08521.79011.7846

picture of Ethane, methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.254 O2 C1 H5 108.007
O2 C1 H6 111.908 O2 C1 H7 111.908
O2 C3 C4 108.662 O2 C3 H8 110.132
O2 C3 H9 110.132 C3 C4 H10 110.917
C3 C4 H11 110.337 C3 C4 H12 110.337
C4 C3 H8 110.853 C4 C3 H9 110.853
H5 C1 H6 108.752 H5 C1 H7 108.752
H6 C1 H7 107.435 H8 C3 H9 106.201
H10 C4 H11 108.558 H10 C4 H12 108.558
H11 C4 H12 108.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.313      
2 O -0.369      
3 C -0.098      
4 C -0.549      
5 H 0.187      
6 H 0.153      
7 H 0.153      
8 H 0.141      
9 H 0.141      
10 H 0.175      
11 H 0.190      
12 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.805 -0.626 0.000 1.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.402 1.772 0.000
y 1.772 -25.387 0.000
z 0.000 0.000 -26.547
Traceless
 xyz
x 0.565 1.772 0.000
y 1.772 0.587 0.000
z 0.000 0.000 -1.153
Polar
3z2-r2-2.305
x2-y2-0.015
xy1.772
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.972 0.745 0.000
y 0.745 6.077 0.000
z 0.000 0.000 5.254


<r2> (average value of r2) Å2
<r2> 101.472
(<r2>)1/2 10.073