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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-306.423349
Energy at 298.15K-306.429871
Nuclear repulsion energy228.706724
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 B1B95/6-311G**
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 3260 3130 2.85      
2 A 3209 3081 3.11      
3 A 3183 3056 17.19      
4 A 3160 3034 4.31      
5 A 3140 3015 21.25      
6 A 3064 2942 27.77      
7 A 1823 1750 194.92      
8 A 1712 1644 27.32      
9 A 1496 1436 6.66      
10 A 1473 1414 9.75      
11 A 1465 1407 46.82      
12 A 1426 1369 72.91      
13 A 1331 1278 123.34      
14 A 1237 1188 315.93      
15 A 1200 1152 19.34      
16 A 1173 1126 0.62      
17 A 1074 1031 2.53      
18 A 1050 1008 15.73      
19 A 1028 987 30.45      
20 A 1004 964 20.15      
21 A 882 847 10.53      
22 A 832 799 29.88      
23 A 673 646 5.21      
24 A 534 513 0.00      
25 A 474 455 1.47      
26 A 336 322 17.19      
27 A 214 206 3.84      
28 A 203 194 4.39      
29 A 100 96 3.35      
30 A 75 72 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20914.9 cm-1
Scaled (by 0.9601) 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 B1B95/6-311G**
ABC
0.34747 0.07847 0.06479

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.019 -0.880 -0.003
H2 -2.394 0.547 -0.884
H3 -2.397 0.542 0.887
C4 -2.284 -0.081 -0.000
O5 -1.011 -0.724 0.000
O6 -0.062 1.310 0.000
C7 0.042 0.110 0.000
H8 1.241 -1.728 0.000
C9 1.312 -0.648 0.000
H10 3.417 -0.528 -0.000
H11 2.484 1.081 -0.000
C12 2.471 -0.002 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.79021.79001.08612.01493.68073.21784.34344.33756.44645.84215.5604
H21.79021.77121.09002.07632.60832.62804.37793.99275.97554.98564.9753
H31.79001.77121.09002.07632.61322.63074.37813.99445.97784.98954.9780
C41.08611.09001.09001.42672.62212.33413.89043.64045.71904.90744.7561
O52.01492.07632.07631.42672.24481.34322.46472.32374.43233.93303.5559
O63.68072.60832.61322.62212.24481.20453.30542.39173.93482.55572.8530
C73.21782.62802.63072.33411.34321.20452.19421.47883.43512.62752.4318
H84.34344.37794.37813.89042.46473.30542.19421.08242.48553.07152.1191
C94.33753.99273.99443.64042.32372.39171.47881.08242.10892.08841.3268
H106.44645.97555.97785.71904.43233.93483.43512.48552.10891.86031.0821
H115.84214.98564.98954.90743.93302.55572.62753.07152.08841.86031.0837
C125.56044.97534.97804.75613.55592.85302.43182.11911.32681.08211.0837

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 110.706 H1 C4 H3 110.691
H1 C4 O5 105.816 H2 C4 H3 108.684
H2 C4 O5 110.468 H3 C4 O5 110.467
C4 O5 C7 114.806 O5 C7 O6 123.461
O5 C7 C9 110.766 O6 C7 C9 125.773
C7 C9 H8 117.055 C7 C9 C12 120.081
H8 C9 C12 122.864 C9 C12 H10 121.865
C9 C12 H11 119.741 H10 C12 H11 118.394
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.132      
2 H 0.139      
3 H 0.139      
4 C -0.167      
5 O -0.323      
6 O -0.356      
7 C 0.402      
8 H 0.134      
9 C -0.223      
10 H 0.133      
11 H 0.147      
12 C -0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.133 -1.467 -0.000 1.473
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.996 -0.736 0.000
y -0.736 -38.341 -0.000
z 0.000 -0.000 -35.970
Traceless
 xyz
x 11.160 -0.736 0.000
y -0.736 -7.358 -0.000
z 0.000 -0.000 -3.801
Polar
3z2-r2-7.602
x2-y212.345
xy-0.736
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.851 0.520 -0.001
y 0.520 6.999 0.000
z -0.001 0.000 4.410


<r2> (average value of r2) Å2
<r2> 175.274
(<r2>)1/2 13.239