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

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-306.362951
Energy at 298.15K-306.369499
Nuclear repulsion energy228.251292
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 B1B95/cc-pVDZ
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 3279 3152 1.49      
2 A 3221 3096 3.04      
3 A 3193 3069 14.11      
4 A 3169 3046 3.18      
5 A 3150 3027 17.93      
6 A 3064 2945 29.20      
7 A 1832 1761 181.09      
8 A 1724 1657 27.89      
9 A 1468 1411 3.51      
10 A 1446 1390 73.07      
11 A 1442 1386 8.59      
12 A 1410 1355 69.73      
13 A 1329 1278 155.50      
14 A 1236 1189 266.81      
15 A 1187 1141 4.86      
16 A 1159 1114 0.67      
17 A 1066 1024 4.67      
18 A 1059 1018 14.48      
19 A 1024 984 24.70      
20 A 998 959 12.42      
21 A 882 847 8.94      
22 A 833 800 25.39      
23 A 671 645 6.12      
24 A 534 513 0.02      
25 A 475 456 1.34      
26 A 339 326 16.23      
27 A 219 210 3.73      
28 A 205 197 3.69      
29 A 104 100 3.10      
30 A 84 81 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 20898.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 20087.9 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 B1B95/cc-pVDZ
ABC
0.34541 0.07837 0.06466

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.029 -0.878 -0.004
H2 -2.390 0.557 -0.889
H3 -2.393 0.552 0.892
C4 -2.282 -0.079 -0.000
O5 -1.014 -0.729 0.000
O6 -0.063 1.312 0.000
C7 0.041 0.107 0.000
H8 1.244 -1.738 0.000
C9 1.312 -0.650 0.000
H10 3.429 -0.525 -0.000
H11 2.477 1.093 -0.000
C12 2.475 0.001 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.80301.80281.09412.02083.68623.22414.35844.34736.46775.84785.5732
H21.80301.78071.09812.08302.60262.62764.38943.99495.98564.97674.9766
H31.80281.78071.09822.08302.60792.63054.38973.99675.98804.98074.9794
C41.09411.09811.09821.42492.61792.33013.89653.63925.72814.90064.7568
O52.02082.08302.08301.42492.25081.34572.47292.32744.44743.93733.5637
O63.68622.60262.60792.61792.25081.20923.31852.39643.94612.54982.8563
C73.22412.62762.63052.33011.34571.20922.20281.47993.44652.62782.4357
H84.35844.38944.38973.89652.47293.31852.20281.09022.49983.08822.1311
C94.34733.99493.99673.63922.32742.39641.47991.09022.12042.09641.3323
H106.46775.98565.98805.72814.44743.94613.44652.49982.12041.87721.0900
H115.84784.97674.98074.90063.93732.54982.62783.08822.09641.87721.0916
C125.57324.97664.97944.75683.56372.85632.43572.13111.33231.09001.0916

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 110.658 H1 C4 H3 110.640
H1 C4 O5 105.938 H2 C4 H3 108.343
H2 C4 O5 110.637 H3 C4 O5 110.635
C4 O5 C7 114.465 O5 C7 O6 123.435
O5 C7 C9 110.822 O6 C7 C9 125.743
C7 C9 H8 117.171 C7 C9 C12 119.935
H8 C9 C12 122.894 C9 C12 H10 121.858
C9 C12 H11 119.407 H10 C12 H11 118.736
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.045      
2 H 0.050      
3 H 0.050      
4 C 0.093      
5 O -0.276      
6 O -0.257      
7 C 0.238      
8 H 0.015      
9 C -0.116      
10 H 0.043      
11 H 0.049      
12 C 0.067      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.137 -1.431 -0.000 1.438
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.221 -0.702 0.000
y -0.702 -37.897 0.000
z 0.000 0.000 -35.668
Traceless
 xyz
x 10.561 -0.702 0.000
y -0.702 -6.952 0.000
z 0.000 0.000 -3.609
Polar
3z2-r2-7.218
x2-y211.676
xy-0.702
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.820 0.501 -0.000
y 0.501 6.890 0.000
z -0.000 0.000 4.092


<r2> (average value of r2) Å2
<r2> 175.522
(<r2>)1/2 13.248