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

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-194.310761
Energy at 298.15K-194.319727
HF Energy-194.310761
Nuclear repulsion energy134.168539
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 mPW1PW91/6-31G(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' 3158 3015 21.28      
2 A' 3144 3001 28.34      
3 A' 3071 2932 15.20      
4 A' 2991 2856 75.98      
5 A' 2972 2837 37.45      
6 A' 1538 1468 2.11      
7 A' 1510 1442 5.06      
8 A' 1502 1434 4.77      
9 A' 1483 1416 0.14      
10 A' 1431 1366 37.04      
11 A' 1394 1331 1.21      
12 A' 1253 1196 68.31      
13 A' 1200 1146 117.51      
14 A' 1123 1072 5.54      
15 A' 1059 1011 16.05      
16 A' 884 844 7.44      
17 A' 469 448 0.51      
18 A' 287 274 2.56      
19 A" 3160 3016 22.68      
20 A" 3040 2903 56.00      
21 A" 3003 2867 69.31      
22 A" 1489 1421 7.37      
23 A" 1484 1417 3.38      
24 A" 1303 1244 1.94      
25 A" 1208 1153 9.25      
26 A" 1174 1121 0.28      
27 A" 821 784 0.61      
28 A" 261 249 1.90      
29 A" 210 201 0.78      
30 A" 119 113 2.43      

Unscaled Zero Point Vibrational Energy (zpe) 23871.4 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 22790.0 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 mPW1PW91/6-31G(2df,p)
ABC
0.94932 0.14007 0.13108

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.311 1.228 0.000
O2 0.014 0.708 0.000
C3 0.000 -0.695 0.000
C4 -1.438 -1.166 0.000
H5 1.231 2.317 0.000
H6 1.878 0.916 0.890
H7 1.878 0.916 -0.890
H8 0.533 -1.082 -0.885
H9 0.533 -1.082 0.885
H10 -1.483 -2.257 0.000
H11 -1.960 -0.796 0.885
H12 -1.960 -0.796 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.39702.32743.64441.09161.10091.10092.59292.59294.46663.94663.9466
O21.39701.40302.36992.01732.07632.07632.06272.06273.32142.63452.6345
C32.32741.40301.51273.25382.62982.62981.10291.10292.15392.15302.1530
C43.64442.36991.51274.38724.01504.01502.16182.16181.09241.09211.0921
H51.09162.01733.25384.38721.78151.78153.58063.58065.31844.54444.5444
H61.10092.07632.62984.01501.78151.77982.99172.40864.70744.20284.5621
H71.10092.07632.62984.01501.78151.77982.40862.99174.70744.56214.2028
H82.59292.06271.10292.16183.58062.99172.40861.76942.49583.07072.5096
H92.59292.06271.10292.16183.58062.40862.99171.76942.49582.50963.0707
H104.46663.32142.15391.09245.31844.70744.70742.49582.49581.77381.7738
H113.94662.63452.15301.09214.54444.20284.56213.07072.50961.77381.7697
H123.94662.63452.15301.09214.54444.56214.20282.50963.07071.77381.7697

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 112.445 O2 C1 H5 107.684
O2 C1 H6 111.905 O2 C1 H7 111.905
O2 C3 C4 108.688 O2 C3 H8 110.228
O2 C3 H9 110.228 C3 C4 H10 110.504
C3 C4 H11 110.449 C3 C4 H12 110.449
C4 C3 H8 110.507 C4 C3 H9 110.507
H5 C1 H6 108.693 H5 C1 H7 108.693
H6 C1 H7 107.877 H8 C3 H9 106.679
H10 C4 H11 108.572 H10 C4 H12 108.572
H11 C4 H12 108.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.277      
2 O -0.260      
3 C -0.068      
4 C -0.456      
5 H 0.150      
6 H 0.123      
7 H 0.123      
8 H 0.109      
9 H 0.109      
10 H 0.141      
11 H 0.153      
12 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.832 -0.647 0.000 1.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.147 1.563 0.000
y 1.563 -25.185 0.000
z 0.000 0.000 -26.057
Traceless
 xyz
x 0.474 1.563 0.000
y 1.563 0.417 0.000
z 0.000 0.000 -0.891
Polar
3z2-r2-1.782
x2-y20.038
xy1.563
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.028 0.772 0.000
y 0.772 6.086 0.000
z 0.000 0.000 5.222


<r2> (average value of r2) Å2
<r2> 102.204
(<r2>)1/2 10.110