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

using model chemistry: QCISD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-194.022214
Energy at 298.15K 
HF Energy-193.179004
Nuclear repulsion energy133.728334
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 QCISD(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/cc-pVTZ
ABC
0.93767 0.13945 0.13033

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.322 1.225 0.000
O2 0.004 0.719 0.000
C3 0.000 -0.697 0.000
C4 -1.440 -1.170 0.000
H5 1.258 2.312 0.000
H6 1.876 0.899 0.890
H7 1.876 0.899 -0.890
H8 0.532 -1.073 -0.886
H9 0.532 -1.073 0.886
H10 -1.483 -2.261 0.000
H11 -1.959 -0.800 0.885
H12 -1.959 -0.800 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41182.33323.65631.08921.09791.09792.58692.58694.47493.95653.9565
O21.41181.41632.37822.02712.08052.08052.06782.06783.33092.63582.6358
C32.33321.41631.51583.26182.61952.61951.09971.09972.15542.15252.1525
C43.65632.37821.51584.40524.00924.00922.16412.16411.09191.09091.0909
H51.08922.02713.26184.40521.78091.78093.57403.57405.33194.56274.5627
H61.09792.08052.61954.00921.78091.78062.97562.38714.69764.19514.5553
H71.09792.08052.61954.00921.78091.78062.38712.97564.69764.55534.1951
H82.58692.06781.09972.16413.57402.97562.38711.77232.50143.06892.5061
H92.58692.06781.09972.16413.57402.38712.97561.77232.50142.50613.0689
H104.47493.33092.15541.09195.33194.69764.69762.50142.50141.77361.7736
H113.95652.63582.15251.09094.56274.19514.55533.06892.50611.77361.7703
H123.95652.63582.15251.09094.56274.55534.19512.50613.06891.77361.7703

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 111.179 O2 C1 H5 107.590
O2 C1 H6 111.382 O2 C1 H7 111.382
O2 C3 C4 108.356 O2 C3 H8 109.897
O2 C3 H9 109.897 C3 C4 H10 110.436
C3 C4 H11 110.260 C3 C4 H12 110.260
C4 C3 H8 110.660 C4 C3 H9 110.660
H5 C1 H6 109.030 H5 C1 H7 109.030
H6 C1 H7 108.379 H8 C3 H9 107.371
H10 C4 H11 108.683 H10 C4 H12 108.683
H11 C4 H12 108.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability