return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H3OC2H5 (Ethene, ethoxy-)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-232.222026
Energy at 298.15K-232.230199
HF Energy-232.222026
Nuclear repulsion energy173.257910
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 PBEPBE/Def2TZVPP
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 3199 3160 4.56      
2 A 3103 3065 0.04      
3 A 3060 3023 22.08      
4 A 3058 3021 23.49      
5 A 3054 3017 15.27      
6 A 2983 2946 14.37      
7 A 2959 2923 36.06      
8 A 2923 2888 56.06      
9 A 1656 1636 165.31      
10 A 1468 1450 6.04      
11 A 1449 1431 3.30      
12 A 1432 1414 6.56      
13 A 1392 1375 1.03      
14 A 1364 1347 40.74      
15 A 1341 1325 34.29      
16 A 1299 1283 6.57      
17 A 1256 1241 0.41      
18 A 1190 1176 228.65      
19 A 1136 1122 3.87      
20 A 1108 1095 113.32      
21 A 1062 1049 43.83      
22 A 961 949 5.76      
23 A 937 925 23.32      
24 A 827 817 4.21      
25 A 798 788 31.74      
26 A 793 783 18.25      
27 A 677 669 8.96      
28 A 486 480 3.23      
29 A 425 420 1.58      
30 A 239 236 0.35      
31 A 202 200 0.24      
32 A 87 86 2.15      
33 A 37 37 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 23978.5 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 23688.4 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 PBEPBE/Def2TZVPP
ABC
0.80087 0.07811 0.07315

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.458 -0.289 0.030
H2 -2.511 -1.372 0.138
H3 -3.383 0.278 -0.022
C4 -1.284 0.347 -0.052
H5 -1.218 1.436 -0.159
O6 -0.087 -0.309 -0.035
C7 1.073 0.531 0.076
H8 1.048 1.065 1.042
H9 1.056 1.287 -0.729
C10 2.309 -0.344 -0.027
H11 2.318 -1.093 0.775
H12 2.331 -0.868 -0.991
H13 3.217 0.268 0.058

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 O6 C7 H8 H9 C10 H11 H12 H13
C11.08901.08701.33742.13252.37113.62493.89203.92554.76714.89984.93055.7020
H21.08901.87292.12043.10502.65214.05814.40714.53284.93104.87904.99745.9586
H31.08701.87292.10042.45903.34784.46474.62494.60775.72615.91795.90836.6010
C41.33742.12042.10041.09561.36512.36802.67432.61183.65923.96703.92834.5035
H52.13253.10502.45901.09562.08282.47502.59182.35023.95304.44694.31274.5919
O62.37112.65213.34781.36512.08281.43652.08212.08242.39652.65652.66033.3557
C73.62494.05814.46472.36802.47501.43651.10421.10471.51742.16222.16272.1601
H83.89204.40714.62492.67432.59182.08211.10421.78542.17172.51803.08472.5113
H93.92554.53284.60772.61182.35022.08241.10471.78542.17253.08502.51682.5153
C104.76714.93105.72613.65923.95302.39651.51742.17172.17251.09761.09771.0983
H114.89984.87905.91793.96704.44692.65652.16222.51803.08501.09761.78051.7814
H124.93054.99745.90833.92834.31272.66032.16273.08472.51681.09771.78051.7823
H135.70205.95866.60104.50354.59193.35572.16012.51132.51531.09831.78141.7823

picture of Ethene, ethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 122.129 C1 C4 O6 122.653
H2 C1 H3 118.788 H2 C1 C4 121.489
H3 C1 C4 119.719 C4 O6 C7 115.371
H5 C4 O6 115.206 O6 C7 H8 109.374
O6 C7 H9 109.369 O6 C7 C10 108.422
C7 C10 H11 110.531 C7 C10 H12 110.563
C7 C10 H13 110.320 H8 C7 H9 107.854
H8 C7 C10 110.882 H9 C7 C10 110.919
H11 C10 H12 108.405 H11 C10 H13 108.439
H12 C10 H13 108.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.251      
2 H 0.079      
3 H 0.093      
4 C 0.047      
5 H 0.058      
6 O -0.198      
7 C 0.003      
8 H 0.076      
9 H 0.076      
10 C -0.239      
11 H 0.090      
12 H 0.090      
13 H 0.078      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.291 1.198 -0.000 1.761
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.314 -0.050 0.000
y -0.050 -31.024 0.001
z 0.000 0.001 -33.733
Traceless
 xyz
x 2.064 -0.050 0.000
y -0.050 1.000 0.001
z 0.000 0.001 -3.064
Polar
3z2-r2-6.128
x2-y20.709
xy-0.050
xz0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.960 0.770 0.000
y 0.770 7.799 0.000
z 0.000 0.000 6.500


<r2> (average value of r2) Å2
<r2> 163.785
(<r2>)1/2 12.798