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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-193.282135
Energy at 298.15K-193.291044
HF Energy-193.282135
Nuclear repulsion energy131.587615
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/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' 3135 3025 23.65      
2 A' 3127 3017 28.46      
3 A' 3067 2959 13.21      
4 A' 2990 2885 72.69      
5 A' 2978 2873 25.24      
6 A' 1596 1540 0.72      
7 A' 1578 1522 5.56      
8 A' 1568 1513 11.63      
9 A' 1510 1457 0.94      
10 A' 1458 1407 10.78      
11 A' 1423 1373 31.86      
12 A' 1215 1172 21.43      
13 A' 1123 1084 8.31      
14 A' 1098 1060 107.96      
15 A' 996 961 6.05      
16 A' 838 809 9.80      
17 A' 452 436 1.18      
18 A' 274 264 3.98      
19 A" 3141 3031 25.88      
20 A" 3021 2915 76.64      
21 A" 3006 2901 60.05      
22 A" 1551 1497 9.91      
23 A" 1550 1496 2.96      
24 A" 1321 1275 0.01      
25 A" 1200 1157 7.56      
26 A" 1155 1115 0.13      
27 A" 865 834 1.26      
28 A" 260 251 3.04      
29 A" 211 204 0.37      
30 A" 112 108 4.61      

Unscaled Zero Point Vibrational Energy (zpe) 23908.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 23069.5 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/3-21G
ABC
0.90080 0.13518 0.12594

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.346 1.263 0.000
O2 0.000 0.717 0.000
C3 0.005 -0.742 0.000
C4 -1.461 -1.175 0.000
H5 1.235 2.350 0.000
H6 1.917 0.959 0.892
H7 1.917 0.959 -0.892
H8 0.526 -1.130 -0.890
H9 0.526 -1.130 0.890
H10 -1.543 -2.267 0.000
H11 -1.960 -0.776 0.887
H12 -1.960 -0.776 -0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.45282.41163.71821.09231.10121.10122.68112.68114.56113.98433.9843
O21.45281.45822.39032.04732.12792.12792.11602.11603.35862.61852.6185
C32.41161.45821.52923.32672.70962.70961.10171.10172.17322.15682.1568
C43.71822.39031.52924.43754.09404.09402.17812.17811.09461.09361.0936
H51.09232.04733.32674.43751.78681.78683.66043.66045.38744.55654.5565
H61.10122.12792.70964.09401.78681.78333.07752.50944.81364.24744.6049
H71.10122.12792.70964.09401.78681.78332.50943.07754.81364.60494.2474
H82.68112.11601.10172.17813.66043.07752.50941.77962.52323.07682.5116
H92.68112.11601.10172.17813.66042.50943.07751.77962.52322.51163.0768
H104.56113.35862.17321.09465.38744.81364.81362.52322.52321.78451.7845
H113.98432.61852.15681.09364.55654.24744.60493.07682.51161.78451.7748
H123.98432.61852.15681.09364.55654.60494.24742.51163.07681.78451.7748

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 111.879 O2 C1 H5 106.241
O2 C1 H6 112.116 O2 C1 H7 112.116
O2 C3 C4 106.257 O2 C3 H8 110.730
O2 C3 H9 110.730 C3 C4 H10 110.748
C3 C4 H11 109.512 C3 C4 H12 109.512
C4 C3 H8 110.713 C4 C3 H9 110.713
H5 C1 H6 109.084 H5 C1 H7 109.084
H6 C1 H7 108.128 H8 C3 H9 107.731
H10 C4 H11 109.277 H10 C4 H12 109.277
H11 C4 H12 108.477
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.309      
2 O -0.481      
3 C -0.119      
4 C -0.570      
5 H 0.203      
6 H 0.171      
7 H 0.171      
8 H 0.171      
9 H 0.171      
10 H 0.183      
11 H 0.205      
12 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.146 -0.761 0.000 1.376
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.944 1.977 0.000
y 1.977 -25.247 0.000
z 0.000 0.000 -26.518
Traceless
 xyz
x 0.938 1.977 0.000
y 1.977 0.484 0.000
z 0.000 0.000 -1.423
Polar
3z2-r2-2.845
x2-y20.303
xy1.977
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.462 0.809 0.000
y 0.809 5.670 0.000
z 0.000 0.000 4.648


<r2> (average value of r2) Å2
<r2> 105.409
(<r2>)1/2 10.267