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

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-304.759623
Energy at 298.15K-304.766582
Nuclear repulsion energy229.947708
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 HF/6-311G**
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 3394 3084 4.15      
2 A 3354 3047 3.44      
3 A 3305 3003 30.05      
4 A 3300 2998 7.15      
5 A 3281 2981 33.88      
6 A 3205 2912 38.64      
7 A 1977 1796 294.56      
8 A 1840 1672 50.13      
9 A 1625 1476 5.05      
10 A 1612 1464 7.15      
11 A 1610 1463 38.39      
12 A 1554 1411 130.22      
13 A 1445 1313 213.19      
14 A 1367 1242 383.76      
15 A 1324 1203 57.46      
16 A 1289 1171 3.13      
17 A 1169 1062 2.47      
18 A 1138 1034 25.33      
19 A 1129 1026 21.70      
20 A 1115 1013 35.25      
21 A 953 866 12.03      
22 A 925 840 48.37      
23 A 728 662 9.60      
24 A 578 525 0.14      
25 A 505 459 2.23      
26 A 370 336 19.04      
27 A 240 218 5.15      
28 A 204 185 4.86      
29 A 158 143 0.74      
30 A 97 88 3.74      

Unscaled Zero Point Vibrational Energy (zpe) 22394.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 20345.7 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 HF/6-311G**
ABC
0.35610 0.07834 0.06499

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.995 -0.914 -0.003
H2 -2.423 0.518 -0.880
H3 -2.426 0.514 0.883
C4 -2.291 -0.096 -0.000
O5 -1.006 -0.692 0.001
O6 -0.053 1.302 -0.000
C7 0.036 0.121 0.000
H8 1.236 -1.714 -0.001
C9 1.313 -0.642 -0.000
H10 3.401 -0.553 0.000
H11 2.512 1.061 0.001
C12 2.471 -0.014 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.77401.77391.07922.00153.68293.20324.30634.31666.40655.85045.5397
H21.77401.76321.08172.06152.64692.64264.37554.00995.98725.04265.0011
H31.77391.76321.08172.06132.65152.64514.37654.01195.98935.04565.0035
C41.07921.08171.08171.41602.63832.33713.87993.64465.71004.93994.7622
O52.00152.06152.06131.41602.21011.32192.46392.31944.40943.93053.5426
O63.68292.64692.65152.63832.21011.18463.27962.37623.92082.57642.8463
C73.20322.64262.64512.33711.32191.18462.19181.48713.43152.64802.4382
H84.30634.37554.37653.87992.46393.27962.19181.07412.45663.05372.1011
C94.31664.00994.01193.64462.31942.37621.48711.07412.09022.08281.3177
H106.40655.98725.98935.71004.40943.92083.43152.45662.09021.84241.0753
H115.85045.04265.04564.93993.93052.57642.64803.05372.08281.84241.0751
C125.53975.00115.00354.76223.54262.84632.43822.10111.31771.07531.0751

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 110.361 H1 C4 H3 110.350
H1 C4 O5 105.873 H2 C4 H3 109.181
H2 C4 O5 110.534 H3 C4 O5 110.512
C4 O5 C7 117.163 O5 C7 O6 123.609
O5 C7 C9 111.184 O6 C7 C9 125.208
C7 C9 H8 116.773 C7 C9 C12 120.632
H8 C9 C12 122.595 C9 C12 H10 121.400
C9 C12 H11 120.686 H10 C12 H11 117.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.102      
2 H 0.103      
3 H 0.103      
4 C -0.004      
5 O -0.445      
6 O -0.477      
7 C 0.608      
8 H 0.122      
9 C -0.288      
10 H 0.123      
11 H 0.141      
12 C -0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.012 -1.624 -0.001 1.624
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.360 -0.632 0.004
y -0.632 -39.203 0.005
z 0.004 0.005 -36.204
Traceless
 xyz
x 12.343 -0.632 0.004
y -0.632 -8.420 0.005
z 0.004 0.005 -3.923
Polar
3z2-r2-7.846
x2-y213.842
xy-0.632
xz0.004
yz0.005


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.742 0.641 0.001
y 0.641 6.558 0.001
z 0.001 0.001 4.245


<r2> (average value of r2) Å2
<r2> 174.997
(<r2>)1/2 13.229