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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-194.309709
Energy at 298.15K-194.318667
HF Energy-194.309709
Nuclear repulsion energy133.811641
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 mPW1PW91/6-31+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' 3164 3011 27.28      
2 A' 3160 3008 23.77      
3 A' 3076 2928 18.31      
4 A' 3007 2862 95.13      
5 A' 2989 2845 43.71      
6 A' 1537 1463 2.43      
7 A' 1513 1440 3.29      
8 A' 1507 1435 8.93      
9 A' 1484 1413 0.65      
10 A' 1438 1368 36.96      
11 A' 1399 1332 1.86      
12 A' 1248 1188 67.66      
13 A' 1194 1136 125.98      
14 A' 1124 1070 5.04      
15 A' 1056 1005 20.56      
16 A' 882 839 10.76      
17 A' 469 446 0.60      
18 A' 289 275 3.02      
19 A" 3166 3013 25.24      
20 A" 3060 2912 57.46      
21 A" 3023 2878 72.43      
22 A" 1495 1423 10.25      
23 A" 1490 1419 6.07      
24 A" 1306 1243 2.19      
25 A" 1201 1143 10.43      
26 A" 1171 1115 0.22      
27 A" 826 786 0.44      
28 A" 261 249 2.34      
29 A" 210 200 1.63      
30 A" 117 111 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 23929.9 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 22776.4 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 mPW1PW91/6-31+G**
ABC
0.94815 0.13899 0.13015

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.312 1.241 0.000
O2 0.013 0.709 0.000
C3 0.000 -0.701 0.000
C4 -1.436 -1.175 0.000
H5 1.220 2.328 0.000
H6 1.876 0.931 0.892
H7 1.876 0.931 -0.892
H8 0.533 -1.081 -0.887
H9 0.533 -1.081 0.887
H10 -1.477 -2.268 0.000
H11 -1.961 -0.809 0.885
H12 -1.961 -0.809 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40392.34393.65941.09091.10001.10002.60462.60464.48203.96223.9622
O21.40391.41042.37702.01922.07782.07782.06402.06403.32872.64282.6428
C32.34391.41041.51243.26552.64232.64231.10211.10212.15282.15432.1543
C43.65942.37701.51244.39614.02564.02562.16172.16171.09331.09251.0925
H51.09092.01923.26554.39611.78241.78243.58843.58845.32834.55424.5542
H61.10002.07782.64234.02561.78241.78463.00312.41924.71944.21334.5730
H71.10002.07782.64234.02561.78241.78462.41923.00314.71944.57304.2133
H82.60462.06401.10212.16173.58843.00312.41921.77392.49693.07162.5086
H92.60462.06401.10212.16173.58842.41923.00311.77392.49692.50863.0716
H104.48203.32872.15281.09335.32834.71944.71942.49692.49691.77391.7739
H113.96222.64282.15431.09254.55424.21334.57303.07162.50861.77391.7708
H123.96222.64282.15431.09254.55424.57304.21332.50863.07161.77391.7708

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 112.787 O2 C1 H5 107.405
O2 C1 H6 111.585 O2 C1 H7 111.585
O2 C3 C4 108.785 O2 C3 H8 109.865
O2 C3 H9 109.865 C3 C4 H10 110.385
C3 C4 H11 110.555 C3 C4 H12 110.555
C4 C3 H8 110.568 C4 C3 H9 110.568
H5 C1 H6 108.892 H5 C1 H7 108.892
H6 C1 H7 108.418 H8 C3 H9 107.181
H10 C4 H11 108.497 H10 C4 H12 108.497
H11 C4 H12 108.280
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 O -0.311      
3 C -0.095      
4 C -0.603      
5 H 0.164      
6 H 0.140      
7 H 0.140      
8 H 0.139      
9 H 0.139      
10 H 0.165      
11 H 0.182      
12 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.051 -0.808 0.000 1.326
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.631 1.987 0.000
y 1.987 -25.730 0.000
z 0.000 0.000 -26.683
Traceless
 xyz
x 0.576 1.987 0.000
y 1.987 0.427 0.000
z 0.000 0.000 -1.003
Polar
3z2-r2-2.005
x2-y20.100
xy1.987
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.484 0.671 0.000
y 0.671 6.440 0.000
z 0.000 0.000 5.596


<r2> (average value of r2) Å2
<r2> 103.097
(<r2>)1/2 10.154