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

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-193.047980
Energy at 298.15K-193.056932
HF Energy-193.047980
Nuclear repulsion energy132.186312
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 PBE1PBE/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' 3165 3040 18.34      
2 A' 3153 3028 24.32      
3 A' 3084 2962 10.96      
4 A' 3006 2887 67.02      
5 A' 2996 2878 23.27      
6 A' 1593 1530 1.76      
7 A' 1575 1513 6.59      
8 A' 1565 1503 12.11      
9 A' 1510 1450 0.37      
10 A' 1455 1397 18.74      
11 A' 1425 1368 22.35      
12 A' 1223 1175 28.21      
13 A' 1138 1093 92.98      
14 A' 1127 1082 15.15      
15 A' 1024 983 7.71      
16 A' 860 826 8.36      
17 A' 458 440 1.31      
18 A' 276 265 4.47      
19 A" 3170 3044 19.86      
20 A" 3048 2928 62.40      
21 A" 3030 2910 62.58      
22 A" 1549 1488 10.69      
23 A" 1546 1484 6.23      
24 A" 1325 1272 0.00      
25 A" 1205 1157 8.16      
26 A" 1162 1116 0.43      
27 A" 865 831 1.96      
28 A" 264 253 3.22      
29 A" 214 206 0.39      
30 A" 116 111 4.76      

Unscaled Zero Point Vibrational Energy (zpe) 24062.2 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 23109.3 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 PBE1PBE/3-21G
ABC
0.90443 0.13691 0.12752

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.344 1.244 0.000
O2 0.000 0.716 0.000
C3 0.003 -0.733 0.000
C4 -1.457 -1.163 0.000
H5 1.249 2.333 0.000
H6 1.910 0.932 0.892
H7 1.910 0.932 -0.892
H8 0.525 -1.121 -0.890
H9 0.525 -1.121 0.890
H10 -1.542 -2.255 0.000
H11 -1.955 -0.761 0.888
H12 -1.955 -0.761 -0.888

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.44372.38893.69321.09271.10171.10172.65682.65684.53543.96153.9615
O21.44371.44902.37812.04262.11932.11932.10812.10813.34732.60672.6067
C32.38891.44901.52193.30912.68452.68451.10261.10262.16852.14992.1499
C43.69322.37811.52194.42074.06524.06522.17302.17301.09491.09411.0941
H51.09272.04263.30914.42071.78741.78743.63973.63975.36964.54174.5417
H61.10172.11932.68454.06521.78741.78343.05152.47734.78234.22044.5801
H71.10172.11932.68454.06521.78741.78342.47733.05154.78234.58014.2204
H82.65682.10811.10262.17303.63973.05152.47731.78032.51963.07242.5058
H92.65682.10811.10262.17303.63972.47733.05151.78032.51962.50583.0724
H104.53543.34732.16851.09495.36964.78234.78232.51962.51961.78551.7855
H113.96152.60672.14991.09414.54174.22044.58013.07242.50581.78551.7753
H123.96152.60672.14991.09414.54174.58014.22042.50583.07241.78551.7753

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 111.347 O2 C1 H5 106.458
O2 C1 H6 112.037 O2 C1 H7 112.037
O2 C3 C4 106.319 O2 C3 H8 110.685
O2 C3 H9 110.685 C3 C4 H10 110.869
C3 C4 H11 109.441 C3 C4 H12 109.441
C4 C3 H8 110.760 C4 C3 H9 110.760
H5 C1 H6 109.085 H5 C1 H7 109.085
H6 C1 H7 108.073 H8 C3 H9 107.665
H10 C4 H11 109.305 H10 C4 H12 109.305
H11 C4 H12 108.440
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.373      
2 O -0.494      
3 C -0.168      
4 C -0.650      
5 H 0.229      
6 H 0.194      
7 H 0.194      
8 H 0.197      
9 H 0.197      
10 H 0.209      
11 H 0.233      
12 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.178 -0.791 0.000 1.419
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.819 2.032 0.000
y 2.032 -25.181 0.000
z 0.000 0.000 -26.457
Traceless
 xyz
x 1.000 2.032 0.000
y 2.032 0.457 0.000
z 0.000 0.000 -1.457
Polar
3z2-r2-2.913
x2-y20.362
xy2.032
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.421 0.765 0.000
y 0.765 5.594 0.000
z 0.000 0.000 4.652


<r2> (average value of r2) Å2
<r2> 104.343
(<r2>)1/2 10.215