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All results from a given calculation for C4H6O2 (2-Propenoic acid, methyl ester)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-306.283808
Energy at 298.15K-306.290155
Nuclear repulsion energy222.212803
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 BLYP/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 3192 3168 8.66      
2 A 3140 3116 4.67      
3 A 3125 3101 15.48      
4 A 3099 3075 5.44      
5 A 3080 3056 24.68      
6 A 2999 2976 25.94      
7 A 1652 1639 27.72      
8 A 1625 1612 106.85      
9 A 1493 1481 7.88      
10 A 1478 1467 8.30      
11 A 1446 1435 38.95      
12 A 1432 1421 14.68      
13 A 1315 1305 12.22      
14 A 1159 1150 0.98      
15 A 1133 1125 361.58      
16 A 1120 1112 0.11      
17 A 1080 1071 5.30      
18 A 1010 1003 26.84      
19 A 983 976 24.47      
20 A 924 917 32.35      
21 A 799 793 9.11      
22 A 779 773 21.54      
23 A 637 632 5.47      
24 A 508 504 0.80      
25 A 457 454 1.04      
26 A 318 315 16.25      
27 A 209 207 5.03      
28 A 200 199 6.12      
29 A 106 105 4.31      
30 A 87 87 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 20292.2 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 20137.9 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 BLYP/6-31G
ABC
0.32457 0.07414 0.06106

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.083 -0.925 -0.000
H2 2.487 0.534 0.897
H3 2.486 0.535 -0.897
C4 2.371 -0.092 0.000
O5 1.032 -0.746 -0.000
O6 0.052 1.372 -0.000
C7 -0.069 0.126 -0.000
H8 -1.236 -1.736 -0.000
C9 -1.335 -0.648 -0.000
H10 -3.472 -0.596 0.000
H11 -2.605 1.059 0.000
C12 -2.537 -0.032 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.81331.81331.09572.05863.80273.32214.39424.42676.56286.02385.6900
H21.81331.79391.09992.13552.72692.73904.45134.10006.13085.19685.1343
H31.81331.79391.09992.13552.72612.73864.45134.09976.13055.19635.1339
C41.09571.09991.09991.49022.74222.44923.96363.74755.86425.10704.9078
O52.05862.13552.13551.49022.33421.40452.47422.36924.50624.06043.6395
O63.80272.72692.72612.74222.33421.25213.36442.45104.03652.67542.9452
C73.32212.73902.73862.44921.40451.25212.19741.48433.47882.70242.4730
H84.39424.45134.45133.96362.47423.36442.19741.09212.50953.11232.1436
C94.42674.10004.09973.74752.36922.45101.48431.09212.13722.12781.3503
H106.56286.13086.13055.86424.50624.03653.47882.50952.13721.86871.0921
H116.02385.19685.19635.10704.06042.67542.70243.11232.12781.86871.0933
C125.69005.13435.13394.90783.63952.94522.47302.14361.35031.09211.0933

picture of 2-Propenoic acid, methyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 111.350 H1 C4 H3 111.351
H1 C4 O5 104.481 H2 C4 H3 109.268
H2 C4 O5 110.158 H3 C4 O5 110.158
C4 O5 C7 115.548 O5 C7 O6 122.856
O5 C7 C9 110.161 O6 C7 C9 126.983
C7 C9 H8 116.222 C7 C9 C12 121.408
H8 C9 C12 122.370 C9 C12 H10 121.739
C9 C12 H11 120.726 H10 C12 H11 117.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.149      
2 H 0.158      
3 H 0.158      
4 C -0.155      
5 O -0.455      
6 O -0.405      
7 C 0.415      
8 H 0.129      
9 C -0.033      
10 H 0.124      
11 H 0.150      
12 C -0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.133 -1.412 0.000 1.418
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.106 1.064 -0.000
y 1.064 -39.344 0.000
z -0.000 0.000 -35.930
Traceless
 xyz
x 12.531 1.064 -0.000
y 1.064 -8.827 0.000
z -0.000 0.000 -3.704
Polar
3z2-r2-7.409
x2-y214.238
xy1.064
xz-0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 184.453
(<r2>)1/2 13.581