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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-306.102770
Energy at 298.15K-306.109194
Nuclear repulsion energy225.958614
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3198 3146 3.69      
2 A 3136 3084 5.26      
3 A 3117 3065 16.43      
4 A 3105 3054 4.26      
5 A 3076 3025 19.60      
6 A 3000 2951 29.28      
7 A 1755 1726 140.69      
8 A 1662 1635 22.07      
9 A 1474 1450 7.76      
10 A 1459 1435 7.10      
11 A 1437 1413 18.44      
12 A 1402 1379 53.36      
13 A 1298 1276 53.73      
14 A 1187 1167 280.30      
15 A 1169 1149 57.00      
16 A 1142 1123 0.21      
17 A 1052 1035 3.35      
18 A 1012 996 14.90      
19 A 996 980 23.71      
20 A 944 929 20.02      
21 A 846 832 9.01      
22 A 787 774 22.27      
23 A 647 637 4.09      
24 A 514 506 0.10      
25 A 463 455 1.17      
26 A 329 324 15.98      
27 A 215 211 3.38      
28 A 202 199 3.77      
29 A 113 112 0.26      
30 A 97 96 2.83      

Unscaled Zero Point Vibrational Energy (zpe) 20417.3 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 20080.4 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 PBEPBEultrafine/6-31G*
ABC
0.33565 0.07696 0.06337

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.047 -0.893 -0.003
H2 -2.415 0.551 -0.894
H3 -2.417 0.547 0.896
C4 -2.304 -0.085 -0.000
O5 -1.021 -0.740 0.000
O6 -0.066 1.337 0.000
C7 0.044 0.117 0.000
H8 1.242 -1.741 -0.000
C9 1.318 -0.649 0.000
H10 3.449 -0.553 -0.000
H11 2.531 1.084 -0.000
C12 2.500 -0.010 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.81071.81061.09852.03233.72353.25274.37274.37226.50575.91825.6169
H21.81071.78981.10212.10012.63392.65284.40804.02206.03415.05425.0270
H31.81061.78981.10222.10002.63792.65494.40824.02346.03595.05735.0291
C41.09851.10211.10221.44092.65152.35703.91413.66565.77234.97384.8042
O52.03232.10012.10001.44092.28641.36742.47472.34064.47423.99283.5955
O63.72352.63392.63792.65152.28641.22503.34482.42083.99092.60862.8977
C73.25272.65282.65492.35701.36741.22502.21101.48633.47022.66772.4586
H84.37274.40804.40823.91412.47473.34482.21101.09472.50693.10552.1396
C94.37224.02204.02343.66562.34062.42081.48631.09472.13362.11561.3435
H106.50576.03416.03595.77234.47423.99093.47022.50692.13361.87721.0937
H115.91825.05425.05734.97383.99282.60862.66773.10552.11561.87721.0949
C125.61695.02705.02914.80423.59552.89772.45862.13961.34351.09371.0949

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 110.735 H1 C4 H3 110.724
H1 C4 O5 105.529 H2 C4 H3 108.575
H2 C4 O5 110.639 H3 C4 O5 110.635
C4 O5 C7 114.104 O5 C7 O6 123.666
O5 C7 C9 110.138 O6 C7 C9 126.196
C7 C9 H8 117.071 C7 C9 C12 120.558
H8 C9 C12 122.371 C9 C12 H10 121.860
C9 C12 H11 120.024 H10 C12 H11 118.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.176      
2 H 0.184      
3 H 0.183      
4 C -0.279      
5 O -0.412      
6 O -0.455      
7 C 0.551      
8 H 0.161      
9 C -0.136      
10 H 0.166      
11 H 0.186      
12 C -0.324      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.136 -1.435 -0.000 1.441
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.999 -0.706 0.001
y -0.706 -37.790 0.000
z 0.001 0.000 -35.675
Traceless
 xyz
x 10.734 -0.706 0.001
y -0.706 -6.954 0.000
z 0.001 0.000 -3.780
Polar
3z2-r2-7.561
x2-y211.792
xy-0.706
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.219 0.462 -0.001
y 0.462 6.910 0.000
z -0.001 0.000 3.857


<r2> (average value of r2) Å2
<r2> 178.519
(<r2>)1/2 13.361