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

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-193.632201
Energy at 298.15K-193.641297
HF Energy-193.104421
Nuclear repulsion energy134.160946
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 CID/6-31G*
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' 3255 3007 33.43      
2 A' 3244 2996 27.58      
3 A' 3164 2923 14.96      
4 A' 3114 2877 70.50      
5 A' 3096 2860 31.93      
6 A' 1630 1506 0.89      
7 A' 1601 1479 6.07      
8 A' 1592 1470 3.53      
9 A' 1570 1451 0.00      
10 A' 1525 1408 42.18      
11 A' 1482 1369 8.30      
12 A' 1318 1218 70.81      
13 A' 1249 1153 114.97      
14 A' 1181 1091 4.96      
15 A' 1101 1017 17.37      
16 A' 926 855 11.12      
17 A' 489 452 0.81      
18 A' 303 280 3.21      
19 A" 3254 3005 28.03      
20 A" 3168 2927 65.31      
21 A" 3131 2892 63.66      
22 A" 1584 1463 5.36      
23 A" 1575 1455 4.13      
24 A" 1369 1265 1.38      
25 A" 1270 1173 11.49      
26 A" 1232 1138 0.00      
27 A" 865 799 0.12      
28 A" 280 259 2.65      
29 A" 222 205 2.13      
30 A" 117 108 3.20      

Unscaled Zero Point Vibrational Energy (zpe) 24954.0 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 23050.0 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 CID/6-31G*
ABC
0.94896 0.13994 0.13092

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.317 1.230 0.000
O2 0.016 0.704 0.000
C3 0.000 -0.704 0.000
C4 -1.442 -1.159 0.000
H5 1.227 2.313 0.000
H6 1.876 0.918 0.888
H7 1.876 0.918 -0.888
H8 0.526 -1.086 -0.883
H9 0.526 -1.086 0.883
H10 -1.501 -2.247 0.000
H11 -1.955 -0.782 0.883
H12 -1.955 -0.782 -0.883

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40312.33933.64931.08661.09451.09452.60142.60144.47523.94133.9413
O21.40311.40772.36562.01342.07182.07182.05992.05993.31802.62172.6217
C32.33931.40771.51213.25622.63382.63381.09641.09642.15272.14672.1467
C43.64932.36561.51214.37894.01364.01362.15822.15821.08981.08841.0884
H51.08662.01343.25624.37891.77601.77603.58073.58075.31334.52574.5257
H61.09452.07182.63384.01361.77601.77622.99552.41614.71244.19124.5499
H71.09452.07182.63384.01361.77601.77622.41612.99554.71244.54994.1912
H82.60142.05991.09642.15823.58072.99552.41611.76512.49703.06052.5002
H92.60142.05991.09642.15823.58072.41612.99551.76512.49702.50023.0605
H104.47523.31802.15271.08985.31334.71244.71242.49702.49701.77001.7700
H113.94132.62172.14671.08844.52574.19124.54993.06052.50021.77001.7651
H123.94132.62172.14671.08844.52574.54994.19122.50023.06051.77001.7651

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 112.665 O2 C1 H5 107.253
O2 C1 H6 111.503 O2 C1 H7 111.503
O2 C3 C4 108.183 O2 C3 H8 110.078
O2 C3 H9 110.078 C3 C4 H10 110.610
C3 C4 H11 110.212 C3 C4 H12 110.212
C4 C3 H8 110.651 C4 C3 H9 110.651
H5 C1 H6 109.027 H5 C1 H7 109.027
H6 C1 H7 108.472 H8 C3 H9 107.207
H10 C4 H11 108.696 H10 C4 H12 108.696
H11 C4 H12 108.356
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability