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

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-190.914723
Energy at 298.15K-190.923548
HF Energy-190.713557
Nuclear repulsion energy130.633813
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3562 3166 1.75      
2 A' 3517 3126 3.32      
3 A' 3381 3005 1.36      
4 A' 3325 2955 12.90      
5 A' 3309 2941 13.89      
6 A' 1745 1551 0.83      
7 A' 1731 1539 2.30      
8 A' 1723 1531 2.65      
9 A' 1646 1463 6.99      
10 A' 1617 1438 4.55      
11 A' 1553 1380 45.52      
12 A' 1344 1195 7.30      
13 A' 1273 1132 6.98      
14 A' 1201 1067 2.22      
15 A' 1134 1008 1.67      
16 A' 962 855 0.17      
17 A' 504 448 0.25      
18 A' 306 272 1.19      
19 A" 3565 3169 2.02      
20 A" 3463 3078 12.55      
21 A" 3430 3049 19.15      
22 A" 1721 1530 0.84      
23 A" 1707 1517 1.76      
24 A" 1417 1260 0.26      
25 A" 1267 1126 10.64      
26 A" 1228 1092 1.36      
27 A" 899 799 0.24      
28 A" 264 235 1.82      
29 A" 201 179 0.00      
30 A" 128 114 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 26559.9 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 23609.1 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=FULL/STO-3G
ABC
0.87586 0.13417 0.12473

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.373 1.213 0.000
O2 -0.017 0.767 0.000
C3 0.000 -0.697 0.000
C4 -1.479 -1.192 0.000
H5 1.362 2.321 0.000
H6 1.931 0.865 0.899
H7 1.931 0.865 -0.899
H8 0.532 -1.094 -0.897
H9 0.532 -1.094 0.897
H10 -1.509 -2.295 0.000
H11 -2.007 -0.824 0.895
H12 -2.007 -0.824 -0.895

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.45962.35203.73081.10841.11351.11352.61372.61374.54004.04724.0472
O21.45961.46432.44522.07702.14732.14732.13792.13793.40682.70152.7015
C32.35201.46431.55973.31082.64152.64151.11641.11642.19812.20162.2016
C43.73082.44521.55974.51814.08284.08282.20452.20451.10311.10271.1027
H51.10842.07703.31084.51811.80291.80293.62683.62685.43604.69544.6954
H61.11352.14732.64154.08281.80291.79853.00372.40714.75714.28554.6459
H71.11352.14732.64154.08281.80291.79852.40713.00374.75714.64594.2855
H82.61372.13791.11642.20453.62683.00372.40711.79472.53293.12022.5540
H92.61372.13791.11642.20453.62682.40713.00371.79472.53292.55403.1202
H104.54003.40682.19811.10315.43604.75714.75712.53292.53291.79241.7924
H114.04722.70152.20161.10274.69544.28554.64593.12022.55401.79241.7902
H124.04722.70152.20161.10274.69544.64594.28552.55403.12021.79241.7902

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 107.105 O2 C1 H5 107.163
O2 C1 H6 112.440 O2 C1 H7 112.440
O2 C3 C4 107.879 O2 C3 H8 111.161
O2 C3 H9 111.161 C3 C4 H10 110.092
C3 C4 H11 110.390 C3 C4 H12 110.390
C4 C3 H8 109.827 C4 C3 H9 109.827
H5 C1 H6 108.473 H5 C1 H7 108.473
H6 C1 H7 107.726 H8 C3 H9 106.991
H10 C4 H11 108.698 H10 C4 H12 108.698
H11 C4 H12 108.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability