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

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-194.362025
Energy at 298.15K-194.370967
HF Energy-194.362025
Nuclear repulsion energy133.533086
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/6-31G(2df,p)
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' 3119 3010 25.41      
2 A' 3110 3001 30.93      
3 A' 3045 2938 16.38      
4 A' 2965 2861 79.03      
5 A' 2944 2840 37.79      
6 A' 1535 1482 1.32      
7 A' 1507 1455 4.48      
8 A' 1499 1446 5.01      
9 A' 1481 1429 0.07      
10 A' 1427 1377 36.42      
11 A' 1398 1349 2.59      
12 A' 1240 1197 43.08      
13 A' 1167 1126 143.80      
14 A' 1116 1077 4.94      
15 A' 1034 998 14.10      
16 A' 869 839 9.88      
17 A' 466 450 0.48      
18 A' 286 276 2.42      
19 A" 3122 3012 27.15      
20 A" 3003 2898 62.98      
21 A" 2968 2864 69.81      
22 A" 1485 1433 6.62      
23 A" 1483 1431 1.77      
24 A" 1297 1252 1.78      
25 A" 1205 1162 9.60      
26 A" 1171 1130 0.09      
27 A" 822 793 0.31      
28 A" 260 251 1.94      
29 A" 210 203 0.74      
30 A" 117 113 2.44      

Unscaled Zero Point Vibrational Energy (zpe) 23674.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 22846.3 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/6-31G(2df,p)
ABC
0.94430 0.13838 0.12953

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.317 1.241 0.000
O2 0.016 0.708 0.000
C3 0.000 -0.703 0.000
C4 -1.445 -1.172 0.000
H5 1.227 2.330 0.000
H6 1.888 0.932 0.891
H7 1.888 0.932 -0.891
H8 0.533 -1.091 -0.886
H9 0.533 -1.091 0.886
H10 -1.493 -2.265 0.000
H11 -1.968 -0.801 0.886
H12 -1.968 -0.801 -0.886

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40512.34783.66761.09301.10241.10242.61432.61434.49303.96783.9678
O21.40511.41142.38182.02412.08472.08472.07062.07063.33472.64592.6459
C32.34781.41141.51953.27212.65192.65191.10411.10412.16092.16052.1605
C43.66762.38181.51954.40564.04144.04142.16912.16911.09411.09371.0937
H51.09302.02413.27214.40561.78431.78433.60123.60125.34024.56064.5606
H61.10242.08472.65194.04141.78431.78243.01442.43484.73804.22754.5858
H71.10242.08472.65194.04141.78431.78242.43483.01444.73804.58584.2275
H82.61432.07061.10412.16913.60123.01442.43481.77202.50373.07882.5177
H92.61432.07061.10412.16913.60122.43483.01441.77202.50372.51773.0788
H104.49303.33472.16091.09415.34024.73804.73802.50372.50371.77631.7763
H113.96782.64592.16051.09374.56064.22754.58583.07882.51771.77631.7720
H123.96782.64592.16051.09374.56064.58584.22752.51773.07881.77631.7720

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 112.937 O2 C1 H5 107.581
O2 C1 H6 111.918 O2 C1 H7 111.918
O2 C3 C4 108.650 O2 C3 H8 110.202
O2 C3 H9 110.202 C3 C4 H10 110.477
C3 C4 H11 110.477 C3 C4 H12 110.477
C4 C3 H8 110.528 C4 C3 H9 110.528
H5 C1 H6 108.731 H5 C1 H7 108.731
H6 C1 H7 107.879 H8 C3 H9 106.728
H10 C4 H11 108.565 H10 C4 H12 108.565
H11 C4 H12 108.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.225      
2 O -0.224      
3 C -0.025      
4 C -0.383      
5 H 0.125      
6 H 0.100      
7 H 0.100      
8 H 0.082      
9 H 0.082      
10 H 0.113      
11 H 0.126      
12 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.818 -0.632 0.000 1.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.403 1.547 0.000
y 1.547 -25.435 0.000
z 0.000 0.000 -26.275
Traceless
 xyz
x 0.452 1.547 0.000
y 1.547 0.404 0.000
z 0.000 0.000 -0.856
Polar
3z2-r2-1.711
x2-y20.032
xy1.547
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.084 0.807 0.000
y 0.807 6.166 0.000
z 0.000 0.000 5.241


<r2> (average value of r2) Å2
<r2> 103.320
(<r2>)1/2 10.165