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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-304.599730
Energy at 298.15K-304.606154
HF Energy-304.599730
Nuclear repulsion energy 
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 B97D3/3-21G
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 3207 3153 6.81      
2 A 3175 3121 1.41      
3 A 3130 3077 17.61      
4 A 3110 3057 5.09      
5 A 3081 3029 26.61      
6 A 3010 2959 26.68      
7 A 1693 1664 72.02      
8 A 1649 1621 28.85      
9 A 1531 1505 9.71      
10 A 1513 1487 8.33      
11 A 1458 1433 27.03      
12 A 1445 1421 23.41      
13 A 1326 1304 15.70      
14 A 1157 1138 0.53      
15 A 1139 1120 365.04      
16 A 1131 1112 0.01      
17 A 1087 1068 5.96      
18 A 1021 1004 31.32      
19 A 982 965 31.07      
20 A 949 933 22.94      
21 A 805 791 29.68      
22 A 804 790 6.70      
23 A 642 631 4.64      
24 A 526 517 0.00      
25 A 472 464 0.67      
26 A 327 321 20.60      
27 A 211 207 3.84      
28 A 208 205 4.71      
29 A 108 106 5.47      
30 A 77 76 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 20486.0 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 20137.8 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 B97D3/3-21G
ABC
0.32721 0.07586 0.06231

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.067 -0.899 -0.001
H2 -2.449 0.551 -0.892
H3 -2.450 0.549 0.893
C4 -2.343 -0.080 -0.000
O5 -1.018 -0.758 0.000
O6 -0.057 1.355 0.000
C7 0.067 0.124 0.000
H8 1.231 -1.738 0.000
C9 1.328 -0.655 0.000
H10 3.455 -0.549 -0.000
H11 2.528 1.074 -0.000
C12 2.506 -0.016 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.81021.81021.09332.05413.76033.29664.37864.40206.53135.93285.6423
H21.81021.78521.09772.13482.67652.70314.42394.06436.07145.08355.0664
H31.81021.78521.09772.13482.67822.70414.42404.06496.07225.08485.0673
C41.09331.09771.09771.48832.69872.41803.93893.71575.81655.00564.8489
O52.05412.13482.13481.48832.32161.39812.45242.34834.47763.99123.6009
O63.76032.67652.67822.69872.32161.23753.35042.44213.99552.60082.9073
C73.29662.70312.70412.41801.39811.23752.19561.48303.45442.63822.4432
H84.37864.42394.42403.93892.45243.35042.19561.08652.52193.09652.1422
C94.40204.06434.06493.71572.34832.44211.48301.08652.12932.10491.3399
H106.53136.07146.07225.81654.47763.99553.45442.52192.12931.86921.0884
H115.93285.08355.08485.00563.99122.60082.63823.09652.10491.86921.0905
C125.64235.06645.06734.84893.60092.90732.44322.14221.33991.08841.0905

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 110.528 H1 C4 H3 110.523
H1 C4 O5 105.491 H2 C4 H3 108.002
H2 C4 O5 111.160 H3 C4 O5 111.157
C4 O5 C7 116.708 O5 C7 O6 123.640
O5 C7 C9 109.880 O6 C7 C9 126.480
C7 C9 H8 116.919 C7 C9 C12 119.931
H8 C9 C12 123.151 C9 C12 H10 122.044
C9 C12 H11 119.871 H10 C12 H11 118.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.218      
2 H 0.223      
3 H 0.223      
4 C -0.371      
5 O -0.488      
6 O -0.492      
7 C 0.626      
8 H 0.223      
9 C -0.256      
10 H 0.210      
11 H 0.229      
12 C -0.345      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.226 -1.176 -0.000 1.198
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.187 -0.934 0.000
y -0.934 -38.148 0.000
z 0.000 0.000 -36.034
Traceless
 xyz
x 11.904 -0.934 0.000
y -0.934 -7.538 0.000
z 0.000 0.000 -4.366
Polar
3z2-r2-8.732
x2-y212.961
xy-0.934
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.757 0.499 -0.000
y 0.499 6.347 0.000
z -0.000 0.000 3.131


<r2> (average value of r2) Å2
<r2> 180.953
(<r2>)1/2 13.452