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

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-193.291479
Energy at 298.15K-193.300333
HF Energy-193.291479
Nuclear repulsion energy131.358744
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 TPSSh/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' 3129 3022 27.80      
2 A' 3126 3018 30.78      
3 A' 3059 2954 15.61      
4 A' 2982 2879 77.89      
5 A' 2971 2869 24.38      
6 A' 1593 1539 0.49      
7 A' 1579 1525 4.31      
8 A' 1569 1515 11.79      
9 A' 1503 1452 1.57      
10 A' 1455 1405 10.49      
11 A' 1412 1363 31.84      
12 A' 1209 1168 18.42      
13 A' 1115 1077 6.40      
14 A' 1083 1046 104.64      
15 A' 989 955 6.48      
16 A' 833 805 9.11      
17 A' 442 426 1.19      
18 A' 266 257 3.97      
19 A" 3137 3029 29.40      
20 A" 3017 2913 76.43      
21 A" 3001 2898 72.39      
22 A" 1553 1499 12.00      
23 A" 1552 1499 0.09      
24 A" 1315 1270 0.02      
25 A" 1189 1148 6.82      
26 A" 1145 1106 0.14      
27 A" 854 825 1.36      
28 A" 256 247 2.95      
29 A" 208 201 0.30      
30 A" 110 107 4.46      

Unscaled Zero Point Vibrational Energy (zpe) 23825.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 23007.9 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 TPSSh/3-21G*
ABC
0.88783 0.13541 0.12594

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.369 1.236 0.000
O2 0.000 0.725 0.000
C3 -0.003 -0.741 0.000
C4 -1.477 -1.154 0.000
H5 1.284 2.326 0.000
H6 1.928 0.913 0.894
H7 1.928 0.913 -0.894
H8 0.516 -1.130 -0.892
H9 0.516 -1.130 0.892
H10 -1.574 -2.246 0.000
H11 -1.968 -0.746 0.889
H12 -1.968 -0.746 -0.889

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.46162.40653.71691.09301.10211.10212.66892.66894.55993.98263.9826
O21.46161.46652.39062.05182.13332.13332.12232.12233.36302.61362.6136
C32.40651.46651.53123.32572.69492.69491.10261.10262.17632.15772.1577
C43.71692.39061.53124.44234.08254.08252.18322.18321.09621.09501.0950
H51.09302.05183.32574.44231.79111.79113.65083.65085.39204.56134.5613
H61.10212.13332.69494.08251.79111.78753.05942.48394.80084.23504.5950
H71.10212.13332.69494.08251.79111.78752.48393.05944.80084.59504.2350
H82.66892.12231.10262.18323.65083.05942.48391.78472.53183.08082.5134
H92.66892.12231.10262.18323.65082.48393.05941.78472.53182.51343.0808
H104.55993.36302.17631.09625.39204.80084.80082.53182.53181.78791.7879
H113.98262.61362.15771.09504.56134.23504.59503.08082.51341.78791.7784
H123.98262.61362.15771.09504.56134.59504.23502.51343.08081.78791.7784

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 110.545 O2 C1 H5 105.966
O2 C1 H6 111.868 O2 C1 H7 111.868
O2 C3 C4 105.757 O2 C3 H8 110.597
O2 C3 H9 110.597 C3 C4 H10 110.759
C3 C4 H11 109.367 C3 C4 H12 109.367
C4 C3 H8 110.929 C4 C3 H9 110.929
H5 C1 H6 109.356 H5 C1 H7 109.356
H6 C1 H7 108.372 H8 C3 H9 108.053
H10 C4 H11 109.360 H10 C4 H12 109.360
H11 C4 H12 108.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.345      
2 O -0.479      
3 C -0.155      
4 C -0.607      
5 H 0.216      
6 H 0.182      
7 H 0.182      
8 H 0.187      
9 H 0.187      
10 H 0.195      
11 H 0.219      
12 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.152 -0.799 0.000 1.402
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.594 0.837 0.000
y 0.837 5.730 0.000
z 0.000 0.000 4.709


<r2> (average value of r2) Å2
<r2> 105.362
(<r2>)1/2 10.265