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

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-306.345491
Energy at 298.15K-306.352148
HF Energy-305.979962
Nuclear repulsion energy227.870357
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 B2PLYP/cc-pVTZ
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 3268 3136 1.88      
2 A 3217 3087 2.74      
3 A 3186 3056 14.57      
4 A 3172 3043 4.00      
5 A 3153 3025 17.98      
6 A 3076 2951 28.90      
7 A 1777 1705 173.62      
8 A 1694 1625 23.20      
9 A 1515 1453 8.18      
10 A 1500 1439 8.17      
11 A 1484 1424 24.33      
12 A 1448 1390 65.27      
13 A 1337 1283 60.87      
14 A 1235 1184 319.79      
15 A 1213 1163 94.91      
16 A 1187 1138 1.02      
17 A 1087 1043 1.42      
18 A 1034 992 30.63      
19 A 1029 987 18.15      
20 A 1011 970 16.76      
21 A 870 834 10.25      
22 A 833 799 25.45      
23 A 670 642 5.56      
24 A 533 512 0.01      
25 A 476 456 1.61      
26 A 343 329 15.88      
27 A 224 215 3.91      
28 A 200 192 4.15      
29 A 142 136 0.33      
30 A 95 91 2.73      

Unscaled Zero Point Vibrational Energy (zpe) 21002.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 20149.9 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 B2PLYP/cc-pVTZ
ABC
0.34426 0.07779 0.06422

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.022 -0.887 -0.002
H2 -2.405 0.538 -0.883
H3 -2.406 0.535 0.885
C4 -2.292 -0.085 -0.000
O5 -1.011 -0.729 -0.000
O6 -0.066 1.321 0.000
C7 0.043 0.115 -0.000
H8 1.242 -1.720 -0.000
C9 1.314 -0.643 -0.000
H10 3.417 -0.546 0.000
H11 2.512 1.072 0.000
C12 2.482 -0.008 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.78551.78541.08372.01683.68943.22424.34454.34266.44795.87055.5730
H21.78551.76871.08702.08032.62042.63654.37984.00095.98795.02464.9958
H31.78541.76871.08702.08032.62292.63794.37994.00185.98895.02644.9971
C41.08371.08701.08701.43382.63352.34393.89453.64955.72834.94224.7747
O52.01682.08032.08031.43382.25681.35022.46192.32674.43213.95683.5662
O63.68942.62042.62292.63352.25681.21013.31032.40003.95152.58992.8728
C73.22422.63652.63792.34391.35021.21012.19281.48043.43862.64832.4419
H84.34454.37984.37993.89452.46193.31032.19281.07962.47193.06772.1139
C94.34264.00094.00183.64952.32672.40001.48041.07962.10542.09231.3292
H106.44795.98795.98895.72834.43213.95153.43862.47192.10541.85381.0793
H115.87055.02465.02644.94223.95682.58992.64833.06772.09231.85381.0804
C125.57304.99584.99714.77473.56622.87282.44192.11391.32921.07931.0804

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 110.680 H1 C4 H3 110.674
H1 C4 O5 105.628 H2 C4 H3 108.894
H2 C4 O5 110.474 H3 C4 O5 110.471
C4 O5 C7 114.654 O5 C7 O6 123.547
O5 C7 C9 110.487 O6 C7 C9 125.966
C7 C9 H8 117.008 C7 C9 C12 120.623
H8 C9 C12 122.370 C9 C12 H10 121.551
C9 C12 H11 120.182 H10 C12 H11 118.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.111      
2 H 0.097      
3 H 0.097      
4 C -0.091      
5 O -0.273      
6 O -0.366      
7 C 0.372      
8 H 0.158      
9 C -0.159      
10 H 0.141      
11 H 0.156      
12 C -0.244      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.386 0.462 -0.000
y 0.462 7.439 0.000
z -0.000 0.000 5.073


<r2> (average value of r2) Å2
<r2> 176.795
(<r2>)1/2 13.296