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

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-193.951554
Energy at 298.15K-193.960556
HF Energy-193.179387
Nuclear repulsion energy134.128454
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 MP2/cc-pVTZ
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' 3180 3019 24.84      
2 A' 3179 3018 16.51      
3 A' 3087 2931 14.07      
4 A' 3024 2872 71.09      
5 A' 3011 2859 37.78      
6 A' 1547 1469 1.69      
7 A' 1527 1450 4.61      
8 A' 1517 1440 4.78      
9 A' 1487 1412 0.27      
10 A' 1434 1362 32.59      
11 A' 1400 1329 0.95      
12 A' 1248 1185 44.89      
13 A' 1182 1122 128.49      
14 A' 1127 1070 3.30      
15 A' 1057 1004 18.56      
16 A' 881 836 10.40      
17 A' 470 446 0.63      
18 A' 290 275 2.58      
19 A" 3184 3023 19.19      
20 A" 3088 2932 46.31      
21 A" 3052 2897 59.19      
22 A" 1507 1431 7.64      
23 A" 1500 1424 4.66      
24 A" 1310 1244 2.00      
25 A" 1210 1149 9.51      
26 A" 1178 1119 0.08      
27 A" 828 786 0.19      
28 A" 266 253 2.14      
29 A" 216 205 1.02      
30 A" 117 111 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 24050.0 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 22835.5 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 MP2/cc-pVTZ
ABC
0.94177 0.14041 0.13119

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.318 1.221 0.000
O2 0.002 0.718 0.000
C3 0.000 -0.695 0.000
C4 -1.434 -1.167 0.000
H5 1.255 2.305 0.000
H6 1.870 0.895 0.888
H7 1.870 0.895 -0.888
H8 0.532 -1.070 -0.883
H9 0.532 -1.070 0.883
H10 -1.477 -2.254 0.000
H11 -1.952 -0.797 0.882
H12 -1.952 -0.797 -0.882

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40892.32593.64391.08591.09461.09462.57792.57794.46013.94253.9425
O21.40891.41302.36962.02182.07562.07562.06272.06273.32002.62512.6251
C32.32591.41301.50993.25202.61062.61061.09691.09692.14782.14422.1442
C43.64392.36961.50994.39133.99503.99502.15762.15761.08851.08751.0875
H51.08592.02183.25204.39131.77571.77573.56243.56245.31524.54784.5478
H61.09462.07562.61063.99501.77571.77512.96472.37754.68124.17984.5391
H71.09462.07562.61063.99501.77571.77512.37752.96474.68124.53914.1798
H82.57792.06271.09692.15763.56242.96472.37751.76702.49403.05922.4980
H92.57792.06271.09692.15763.56242.37752.96471.76702.49402.49803.0592
H104.46013.32002.14781.08855.31524.68124.68122.49402.49401.76831.7683
H113.94252.62512.14421.08754.54784.17984.53913.05922.49801.76831.7648
H123.94252.62512.14421.08754.54784.53914.17982.49803.05921.76831.7648

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 111.019 O2 C1 H5 107.572
O2 C1 H6 111.389 O2 C1 H7 111.389
O2 C3 C4 108.285 O2 C3 H8 109.899
O2 C3 H9 109.899 C3 C4 H10 110.448
C3 C4 H11 110.225 C3 C4 H12 110.225
C4 C3 H8 110.724 C4 C3 H9 110.724
H5 C1 H6 109.045 H5 C1 H7 109.045
H6 C1 H7 108.353 H8 C3 H9 107.310
H10 C4 H11 108.711 H10 C4 H12 108.711
H11 C4 H12 108.469
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability