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

using model chemistry: CCD/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 CCD/6-31G
 hartrees
Energy at 0K-193.457906
Energy at 298.15K-193.466789
HF Energy-193.015448
Nuclear repulsion energy130.827108
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 CCD/6-31G
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' 3136 3009 28.07      
2 A' 3106 2981 30.33      
3 A' 3031 2908 17.72      
4 A' 2989 2868 51.89      
5 A' 2973 2852 33.37      
6 A' 1582 1518 0.75      
7 A' 1557 1494 3.13      
8 A' 1553 1490 8.30      
9 A' 1506 1445 0.31      
10 A' 1474 1414 13.10      
11 A' 1441 1382 23.11      
12 A' 1231 1181 21.62      
13 A' 1136 1090 17.97      
14 A' 1112 1067 71.66      
15 A' 1023 982 13.11      
16 A' 838 804 11.89      
17 A' 460 442 1.19      
18 A' 281 270 4.34      
19 A" 3121 2995 32.25      
20 A" 3046 2923 63.86      
21 A" 3005 2884 58.83      
22 A" 1540 1478 5.50      
23 A" 1539 1477 4.61      
24 A" 1317 1264 0.05      
25 A" 1211 1162 10.68      
26 A" 1164 1117 0.38      
27 A" 852 817 0.31      
28 A" 255 244 2.84      
29 A" 197 189 2.70      
30 A" 106 102 5.11      

Unscaled Zero Point Vibrational Energy (zpe) 23890.2 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 22922.7 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 CCD/6-31G
ABC
0.90344 0.13266 0.12393

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.339 1.300 0.000
O2 0.000 0.717 0.000
C3 0.008 -0.748 0.000
C4 -1.453 -1.208 0.000
H5 1.194 2.388 0.000
H6 1.905 1.000 0.900
H7 1.905 1.000 -0.900
H8 0.545 -1.118 -0.895
H9 0.545 -1.118 0.895
H10 -1.513 -2.309 0.000
H11 -1.970 -0.824 0.893
H12 -1.970 -0.824 -0.893

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.46012.44243.75331.09701.10541.10542.69772.69774.59984.03164.0316
O21.46011.46472.41212.05332.12592.12592.11302.11303.38322.65542.6554
C32.44241.46471.53203.35212.73192.73191.10771.10772.17952.17092.1709
C43.75332.41211.53204.46504.11874.11872.19182.19181.10271.10061.1006
H51.09702.05333.35214.46501.80091.80093.67553.67555.42084.59544.5954
H61.10542.12592.73194.11871.80091.80063.09122.51644.84154.28244.6426
H71.10542.12592.73194.11871.80091.80062.51643.09124.84154.64264.2824
H82.69772.11301.10772.19183.67553.09122.51641.79032.54083.09962.5319
H92.69772.11301.10772.19183.67552.51643.09121.79032.54082.53193.0996
H104.59983.38322.17951.10275.42084.84154.84152.54082.54081.79221.7922
H114.03162.65542.17091.10064.59544.28244.64263.09962.53191.79221.7857
H124.03162.65542.17091.10064.59544.64264.28242.53193.09961.79221.7857

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 113.244 O2 C1 H5 105.956
O2 C1 H6 111.171 O2 C1 H7 111.171
O2 C3 C4 107.189 O2 C3 H8 109.669
O2 C3 H9 109.669 C3 C4 H10 110.573
C3 C4 H11 110.028 C3 C4 H12 110.028
C4 C3 H8 111.245 C4 C3 H9 111.245
H5 C1 H6 109.714 H5 C1 H7 109.714
H6 C1 H7 109.070 H8 C3 H9 107.819
H10 C4 H11 108.866 H10 C4 H12 108.866
H11 C4 H12 108.435
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability