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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-306.391540
Energy at 298.15K-306.397968
Nuclear repulsion energy225.458914
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 BLYP/6-31G(2df,p)
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 3172 3154 4.04      
2 A 3114 3097 5.66      
3 A 3081 3065 9.63      
4 A 3081 3064 13.10      
5 A 3042 3026 21.24      
6 A 2974 2958 30.10      
7 A 1720 1711 134.59      
8 A 1632 1623 21.39      
9 A 1456 1448 6.08      
10 A 1440 1432 5.22      
11 A 1427 1419 11.51      
12 A 1397 1389 43.32      
13 A 1289 1282 25.87      
14 A 1172 1165 38.59      
15 A 1146 1139 341.62      
16 A 1139 1132 0.78      
17 A 1050 1044 1.45      
18 A 1008 1003 18.02      
19 A 973 968 20.40      
20 A 959 954 13.57      
21 A 828 823 8.55      
22 A 800 795 18.49      
23 A 641 637 4.52      
24 A 518 515 0.21      
25 A 460 457 1.42      
26 A 326 324 14.70      
27 A 212 211 2.97      
28 A 199 198 3.20      
29 A 109 108 0.05      
30 A 100 99 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 20231.5 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 20120.2 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 BLYP/6-31G(2df,p)
ABC
0.33508 0.07629 0.06289

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.051 -0.909 -0.003
H2 -2.438 0.540 -0.892
H3 -2.440 0.535 0.895
C4 -2.319 -0.093 -0.000
O5 -1.020 -0.736 0.000
O6 -0.065 1.343 -0.000
C7 0.047 0.127 0.000
H8 1.233 -1.731 -0.000
C9 1.322 -0.644 -0.000
H10 3.450 -0.573 -0.000
H11 2.559 1.070 0.000
C12 2.510 -0.021 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.80741.80731.09672.03863.74063.26724.36224.38156.51035.94875.6317
H21.80741.78691.10012.10612.65982.67264.40794.04196.05885.10345.0590
H31.80731.78691.10012.10612.66382.67484.40814.04326.06055.10645.0611
C41.09671.10011.10011.44972.67272.37643.91153.68265.78935.01434.8295
O52.03862.10612.10611.44972.28831.37282.46272.34404.47334.00863.6017
O63.74062.65982.66382.67272.28831.22093.33702.42304.00342.63752.9135
C73.26722.67262.67482.37641.37281.22092.20461.49013.47452.68252.4672
H84.36224.40794.40813.91152.46273.33702.20461.09132.50193.09912.1348
C94.38154.04194.04323.68262.34402.42301.49011.09132.12932.11311.3412
H106.51036.05886.06055.78934.47334.00343.47452.50192.12931.86931.0906
H115.94875.10345.10645.01434.00862.63752.68253.09912.11311.86931.0916
C125.63175.05905.06114.82953.60172.91352.46722.13481.34121.09061.0916

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 110.720 H1 C4 H3 110.709
H1 C4 O5 105.531 H2 C4 H3 108.613
H2 C4 O5 110.633 H3 C4 O5 110.629
C4 O5 C7 114.661 O5 C7 O6 123.729
O5 C7 C9 109.852 O6 C7 C9 126.419
C7 C9 H8 116.462 C7 C9 C12 121.159
H8 C9 C12 122.379 C9 C12 H10 121.895
C9 C12 H11 120.235 H10 C12 H11 117.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.117      
2 H 0.129      
3 H 0.128      
4 C -0.223      
5 O -0.187      
6 O -0.336      
7 C 0.385      
8 H 0.089      
9 C -0.082      
10 H 0.110      
11 H 0.121      
12 C -0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.132 -1.461 -0.000 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.735 -0.660 0.000
y -0.660 -37.999 0.000
z 0.000 0.000 -35.426
Traceless
 xyz
x 9.978 -0.660 0.000
y -0.660 -6.919 0.000
z 0.000 0.000 -3.059
Polar
3z2-r2-6.118
x2-y211.264
xy-0.660
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.733 0.401 -0.000
y 0.401 7.151 0.000
z -0.000 0.000 4.435


<r2> (average value of r2) Å2
<r2> 179.836
(<r2>)1/2 13.410