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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-194.214366
Energy at 298.15K-194.223265
HF Energy-194.214366
Nuclear repulsion energy132.076690
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 B3PW91/6-31G
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' 3174 3039 26.33      
2 A' 3154 3020 27.75      
3 A' 3067 2937 17.75      
4 A' 3004 2877 77.49      
5 A' 2988 2862 38.12      
6 A' 1569 1503 1.87      
7 A' 1547 1482 1.37      
8 A' 1541 1476 15.34      
9 A' 1500 1437 0.45      
10 A' 1457 1395 19.71      
11 A' 1429 1368 16.76      
12 A' 1226 1174 23.32      
13 A' 1137 1089 28.13      
14 A' 1124 1076 93.23      
15 A' 1036 993 14.70      
16 A' 847 811 11.84      
17 A' 461 441 1.01      
18 A' 279 267 4.32      
19 A" 3164 3030 29.76      
20 A" 3065 2935 71.29      
21 A" 3027 2899 72.68      
22 A" 1526 1462 11.67      
23 A" 1525 1461 4.96      
24 A" 1312 1257 0.16      
25 A" 1203 1152 10.15      
26 A" 1163 1114 0.04      
27 A" 853 817 1.46      
28 A" 254 243 2.76      
29 A" 202 194 1.67      
30 A" 111 107 5.11      

Unscaled Zero Point Vibrational Energy (zpe) 23972.4 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 22958.4 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 B3PW91/6-31G
ABC
0.92222 0.13526 0.12642

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.318 1.290 0.000
O2 0.000 0.711 0.000
C3 0.008 -0.736 0.000
C4 -1.435 -1.202 0.000
H5 1.180 2.372 0.000
H6 1.890 0.997 0.894
H7 1.890 0.997 -0.894
H8 0.544 -1.108 -0.889
H9 0.544 -1.108 0.889
H10 -1.488 -2.296 0.000
H11 -1.955 -0.826 0.886
H12 -1.955 -0.826 -0.886

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.43972.41303.71281.09081.10041.10042.67162.67164.55313.99703.9970
O21.43971.44762.39092.03742.11002.11002.09632.09633.35492.64002.6400
C32.41301.44761.51563.32202.71022.71021.10261.10262.16072.15542.1554
C43.71282.39091.51564.42804.08474.08472.17122.17121.09551.09411.0941
H51.09082.03743.32204.42801.78671.78673.64723.64725.37644.56524.5652
H61.10042.11002.71024.08471.78671.78703.06902.49824.80114.25514.6123
H71.10042.11002.71024.08471.78671.78702.49823.06904.80114.61234.2551
H82.67162.09631.10262.17123.64723.06902.49821.77832.51613.07822.5147
H92.67162.09631.10262.17123.64722.49823.06901.77832.51612.51473.0782
H104.55313.35492.16071.09555.37644.80114.80112.51612.51611.77861.7786
H113.99702.64002.15541.09414.56524.25514.61233.07822.51471.77861.7724
H123.99702.64002.15541.09414.56524.61234.25512.51473.07821.77861.7724

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 113.386 O2 C1 H5 106.430
O2 C1 H6 111.639 O2 C1 H7 111.639
O2 C3 C4 107.563 O2 C3 H8 109.833
O2 C3 H9 109.833 C3 C4 H10 110.662
C3 C4 H11 110.319 C3 C4 H12 110.319
C4 C3 H8 111.066 C4 C3 H9 111.066
H5 C1 H6 109.247 H5 C1 H7 109.247
H6 C1 H7 108.583 H8 C3 H9 107.486
H10 C4 H11 108.644 H10 C4 H12 108.644
H11 C4 H12 108.186
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 O -0.525      
3 C -0.052      
4 C -0.481      
5 H 0.182      
6 H 0.147      
7 H 0.147      
8 H 0.144      
9 H 0.144      
10 H 0.155      
11 H 0.178      
12 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.281 -0.882 0.000 1.555
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.816 2.280 0.000
y 2.280 -25.096 0.000
z 0.000 0.000 -26.426
Traceless
 xyz
x 0.945 2.280 0.000
y 2.280 0.525 0.000
z 0.000 0.000 -1.469
Polar
3z2-r2-2.939
x2-y20.280
xy2.280
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.677 0.743 0.000
y 0.743 5.929 0.000
z 0.000 0.000 4.928


<r2> (average value of r2) Å2
<r2> 105.049
(<r2>)1/2 10.249