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

using model chemistry: QCISD(T)/aug-cc-pVDZ

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)/aug-cc-pVDZ
 hartrees
Energy at 0K-193.856981
Energy at 298.15K-193.865891
HF Energy-193.128327
Nuclear repulsion energy132.382779
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)/aug-cc-pVDZ
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' 3121 3052        
2 A' 3108 3039        
3 A' 3026 2959        
4 A' 2970 2904        
5 A' 2957 2891        
6 A' 1505 1472        
7 A' 1483 1450        
8 A' 1479 1446        
9 A' 1450 1418        
10 A' 1409 1378        
11 A' 1371 1341        
12 A' 1219 1192        
13 A' 1141 1116        
14 A' 1099 1075        
15 A' 1031 1008        
16 A' 854 836        
17 A' 462 452        
18 A' 287 281        
19 A" 3116 3047        
20 A" 3026 2959        
21 A" 2993 2927        
22 A" 1468 1436        
23 A" 1465 1432        
24 A" 1279 1251        
25 A" 1179 1153        
26 A" 1148 1122        
27 A" 809 791        
28 A" 258 252        
29 A" 208 203        
30 A" 108 106        

Unscaled Zero Point Vibrational Energy (zpe) 23515.3 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 22993.3 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 QCISD(T)/aug-cc-pVDZ
ABC
0.91627 0.13688 0.12793

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.334 1.239 0.000
O2 0.001 0.727 0.000
C3 0.000 -0.705 0.000
C4 -1.450 -1.183 0.000
H5 1.261 2.338 0.000
H6 1.890 0.907 0.903
H7 1.890 0.907 -0.903
H8 0.539 -1.079 -0.898
H9 0.539 -1.079 0.898
H10 -1.485 -2.289 0.000
H11 -1.976 -0.813 0.897
H12 -1.976 -0.813 -0.897

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.42742.35743.69021.10211.11081.11082.60992.60994.51563.99643.9964
O21.42741.43212.39942.04492.10112.10112.08812.08813.36232.66232.6623
C32.35741.43211.52683.29412.64332.64331.11271.11272.17122.17302.1730
C43.69022.39941.52684.44434.04254.04252.18512.18511.10561.10431.1043
H51.10212.04493.29414.44431.80521.80523.60673.60675.38054.60574.6057
H61.11082.10112.64334.04251.80521.80553.00252.40244.73524.23174.5986
H71.11082.10112.64334.04251.80521.80552.40243.00254.73524.59864.2317
H82.60992.08811.11272.18513.60673.00252.40241.79642.52353.10202.5296
H92.60992.08811.11272.18513.60672.40243.00251.79642.52352.52963.1020
H104.51563.36232.17121.10565.38054.73524.73522.52352.52351.79551.7955
H113.99642.66232.17301.10434.60574.23174.59863.10202.52961.79551.7945
H123.99642.66232.17301.10434.60574.59864.23172.52963.10201.79551.7945

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 111.055 O2 C1 H5 107.184
O2 C1 H6 111.127 O2 C1 H7 111.127
O2 C3 C4 108.328 O2 C3 H8 109.640
O2 C3 H9 109.640 C3 C4 H10 110.104
C3 C4 H11 110.323 C3 C4 H12 110.323
C4 C3 H8 110.784 C4 C3 H9 110.784
H5 C1 H6 109.323 H5 C1 H7 109.323
H6 C1 H7 108.722 H8 C3 H9 107.656
H10 C4 H11 108.679 H10 C4 H12 108.679
H11 C4 H12 108.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability