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

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-192.261443
Energy at 298.15K-192.270356
HF Energy-192.261443
Nuclear repulsion energy132.744531
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 LSDA/3-21G*
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' 3093 3038 10.41      
2 A' 3065 3010 17.19      
3 A' 3004 2950 6.98      
4 A' 2890 2838 68.01      
5 A' 2876 2824 30.16      
6 A' 1535 1508 3.95      
7 A' 1513 1486 4.75      
8 A' 1503 1476 18.31      
9 A' 1450 1424 2.02      
10 A' 1394 1369 29.97      
11 A' 1370 1345 12.81      
12 A' 1184 1163 46.05      
13 A' 1137 1117 90.56      
14 A' 1098 1078 4.36      
15 A' 1025 1006 13.12      
16 A' 852 837 6.82      
17 A' 456 447 1.34      
18 A' 272 267 4.44      
19 A" 3090 3034 12.18      
20 A" 2924 2872 50.40      
21 A" 2900 2848 79.86      
22 A" 1481 1455 11.99      
23 A" 1475 1449 12.07      
24 A" 1272 1249 0.01      
25 A" 1172 1151 8.15      
26 A" 1126 1106 1.13      
27 A" 841 826 3.36      
28 A" 272 267 2.61      
29 A" 215 211 0.09      
30 A" 123 120 4.02      

Unscaled Zero Point Vibrational Energy (zpe) 23303.8 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 22884.3 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 LSDA/3-21G*
ABC
0.90145 0.13933 0.12968

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.332 1.224 0.000
O2 -0.007 0.719 0.000
C3 0.000 -0.718 0.000
C4 -1.444 -1.155 0.000
H5 1.263 2.323 0.000
H6 1.907 0.898 0.897
H7 1.907 0.898 -0.897
H8 0.536 -1.111 -0.896
H9 0.536 -1.111 0.896
H10 -1.527 -2.254 0.000
H11 -1.949 -0.752 0.893
H12 -1.949 -0.752 -0.893

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.43062.35453.65521.10191.11411.11412.62472.62474.50203.93273.9327
O21.43061.43682.36122.04582.12122.12122.10902.10903.33922.59512.5951
C32.35451.43681.50823.29292.65592.65591.11571.11572.16602.14442.1444
C43.65522.36121.50824.40694.03074.03072.17322.17321.10261.10271.1027
H51.10192.04583.29294.40691.80301.80303.62343.62345.36054.53554.5355
H61.11412.12122.65594.03071.80301.79413.02222.43304.74714.19444.5605
H71.11412.12122.65594.03071.80301.79412.43303.02224.74714.56054.1944
H82.62472.10901.11572.17323.62343.02222.43301.79162.52263.08322.5110
H92.62472.10901.11572.17323.62342.43303.02221.79162.52262.51103.0832
H104.50203.33922.16601.10265.36054.74714.74712.52262.52261.79811.7981
H113.93272.59512.14441.10274.53554.19444.56053.08322.51101.79811.7867
H123.93272.59512.14441.10274.53554.56054.19442.51103.08321.79811.7867

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 110.389 O2 C1 H5 107.048
O2 C1 H6 112.333 O2 C1 H7 112.333
O2 C3 C4 106.571 O2 C3 H8 110.800
O2 C3 H9 110.800 C3 C4 H10 111.172
C3 C4 H11 109.451 C3 C4 H12 109.451
C4 C3 H8 110.953 C4 C3 H9 110.953
H5 C1 H6 108.899 H5 C1 H7 108.899
H6 C1 H7 107.253 H8 C3 H9 106.819
H10 C4 H11 109.247 H10 C4 H12 109.247
H11 C4 H12 108.219
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.407      
2 O -0.424      
3 C -0.190      
4 C -0.650      
5 H 0.230      
6 H 0.193      
7 H 0.193      
8 H 0.192      
9 H 0.192      
10 H 0.211      
11 H 0.232      
12 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.012 -0.708 0.000 1.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.042 1.972 0.000
y 1.972 -25.250 0.000
z 0.000 0.000 -26.613
Traceless
 xyz
x 0.889 1.972 0.000
y 1.972 0.578 0.000
z 0.000 0.000 -1.467
Polar
3z2-r2-2.934
x2-y20.207
xy1.972
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.630 0.803 0.000
y 0.803 5.769 0.000
z 0.000 0.000 4.831


<r2> (average value of r2) Å2
<r2> 103.248
(<r2>)1/2 10.161