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All results from a given calculation for CH3OC2H5 (Ethane, methoxy-)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-194.281477
Energy at 298.15K-194.290440
HF Energy-194.281477
Nuclear repulsion energy133.708262
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 B3PW91/6-31G**
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' 3149 3018 24.55      
2 A' 3139 3009 31.48      
3 A' 3064 2937 16.20      
4 A' 2983 2859 85.32      
5 A' 2963 2840 40.12      
6 A' 1544 1479 1.22      
7 A' 1516 1453 4.13      
8 A' 1509 1446 7.10      
9 A' 1486 1424 0.04      
10 A' 1436 1376 40.28      
11 A' 1398 1340 3.97      
12 A' 1245 1193 62.47      
13 A' 1189 1140 124.21      
14 A' 1122 1076 5.93      
15 A' 1050 1006 16.67      
16 A' 881 844 9.31      
17 A' 468 448 0.59      
18 A' 288 276 2.89      
19 A" 3153 3022 25.63      
20 A" 3031 2905 65.36      
21 A" 2995 2870 79.01      
22 A" 1494 1431 8.53      
23 A" 1491 1429 2.39      
24 A" 1302 1248 1.42      
25 A" 1204 1154 9.30      
26 A" 1170 1121 0.31      
27 A" 825 791 0.65      
28 A" 267 256 2.16      
29 A" 214 205 1.08      
30 A" 117 112 2.93      

Unscaled Zero Point Vibrational Energy (zpe) 23845.1 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 22853.2 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 B3PW91/6-31G**
ABC
0.94321 0.13905 0.13010

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.315 1.235 0.000
O2 0.013 0.710 0.000
C3 0.000 -0.701 0.000
C4 -1.440 -1.171 0.000
H5 1.230 2.325 0.000
H6 1.885 0.926 0.891
H7 1.885 0.926 -0.891
H8 0.533 -1.088 -0.886
H9 0.533 -1.088 0.886
H10 -1.487 -2.264 0.000
H11 -1.964 -0.801 0.886
H12 -1.964 -0.801 -0.886

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40412.34023.65781.09281.10241.10242.60662.60664.48313.95953.9595
O21.40411.41092.37672.02212.08472.08472.07132.07133.33112.64062.6406
C32.34021.41091.51503.26592.64432.64431.10441.10442.15792.15652.1565
C43.65782.37671.51504.39884.03064.03062.16482.16481.09431.09361.0936
H51.09282.02213.26594.39881.78351.78353.59433.59435.33314.55544.5554
H61.10242.08472.64434.03061.78351.78273.00702.42544.72664.21794.5770
H71.10242.08472.64434.03061.78351.78272.42543.00704.72664.57704.2179
H82.60662.07131.10442.16483.59433.00702.42541.77242.50023.07532.5133
H92.60662.07131.10442.16483.59432.42543.00701.77242.50022.51333.0753
H104.48313.33112.15791.09435.33314.72664.72662.50022.50021.77591.7759
H113.95952.64062.15651.09364.55544.21794.57703.07532.51331.77591.7718
H123.95952.64062.15651.09364.55544.57704.21792.51333.07531.77591.7718

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 112.474 O2 C1 H5 107.508
O2 C1 H6 111.994 O2 C1 H7 111.994
O2 C3 C4 108.593 O2 C3 H8 110.272
O2 C3 H9 110.272 C3 C4 H10 110.554
C3 C4 H11 110.483 C3 C4 H12 110.483
C4 C3 H8 110.492 C4 C3 H9 110.492
H5 C1 H6 108.670 H5 C1 H7 108.670
H6 C1 H7 107.915 H8 C3 H9 106.720
H10 C4 H11 108.521 H10 C4 H12 108.521
H11 C4 H12 108.207
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.122      
2 O -0.474      
3 C 0.030      
4 C -0.405      
5 H 0.137      
6 H 0.108      
7 H 0.108      
8 H 0.102      
9 H 0.102      
10 H 0.126      
11 H 0.144      
12 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.923 -0.689 0.000 1.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.041 1.799 0.000
y 1.799 -25.191 0.000
z 0.000 0.000 -26.285
Traceless
 xyz
x 0.697 1.799 0.000
y 1.799 0.472 0.000
z 0.000 0.000 -1.169
Polar
3z2-r2-2.338
x2-y20.150
xy1.799
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.856 0.727 0.000
y 0.727 5.977 0.000
z 0.000 0.000 5.132


<r2> (average value of r2) Å2
<r2> 102.844
(<r2>)1/2 10.141