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

using model chemistry: B3PW91/aug-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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-306.389481
Energy at 298.15K-306.396096
Nuclear repulsion energy227.279375
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 B3PW91/aug-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 3266 3151 1.65      
2 A 3209 3095 3.15      
3 A 3182 3069 13.72      
4 A 3161 3049 4.38      
5 A 3146 3034 16.94      
6 A 3059 2951 31.61      
7 A 1788 1724 199.89      
8 A 1703 1643 25.29      
9 A 1464 1412 7.93      
10 A 1453 1402 9.62      
11 A 1447 1395 55.98      
12 A 1417 1367 59.61      
13 A 1321 1274 84.98      
14 A 1225 1182 336.75      
15 A 1192 1150 22.40      
16 A 1159 1118 0.62      
17 A 1069 1032 2.88      
18 A 1040 1003 13.97      
19 A 1016 980 45.39      
20 A 1011 975 4.80      
21 A 869 838 9.51      
22 A 831 802 24.81      
23 A 665 642 5.67      
24 A 527 509 0.06      
25 A 473 456 1.78      
26 A 335 323 15.65      
27 A 218 211 4.47      
28 A 201 194 4.09      
29 A 135 130 0.32      
30 A 99 95 2.94      

Unscaled Zero Point Vibrational Energy (zpe) 20840.3 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 20102.6 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 B3PW91/aug-cc-pVDZ
ABC
0.34269 0.07742 0.06392

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.030 -0.901 -0.002
H2 2.416 0.537 0.894
H3 2.415 0.539 -0.892
C4 2.298 -0.089 0.000
O5 1.015 -0.725 0.000
O6 0.065 1.325 -0.000
C7 -0.042 0.116 -0.000
H8 -1.242 -1.731 -0.001
C9 -1.315 -0.643 -0.000
H10 -3.432 -0.562 0.000
H11 -2.533 1.079 0.001
C12 -2.492 -0.011 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.80191.80191.09372.02273.70743.23624.35184.35276.47165.90535.5935
H21.80191.78611.09722.08652.63552.64904.39584.01396.01765.05835.0187
H31.80191.78611.09712.08642.63292.64754.39534.01296.01655.05665.0174
C41.09371.09721.09711.43232.64252.34913.90263.65555.75034.97054.7909
O52.02272.08652.08641.43232.25901.35112.47112.33154.45073.98073.5792
O63.70742.63552.63292.64252.25901.21283.32352.40343.97412.60992.8849
C73.23622.64902.64752.34911.35111.21282.20301.48243.45782.67082.4534
H84.35184.39584.39533.90262.47113.32352.20301.09062.48323.09312.1267
C94.35274.01394.01293.65552.33152.40341.48241.09062.11922.10971.3362
H106.47166.01766.01655.75034.45073.97413.45782.48322.11921.87171.0901
H115.90535.05835.05664.97053.98072.60992.67083.09312.10971.87171.0910
C125.59355.01875.01744.79093.57922.88492.45342.12671.33621.09011.0910

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 110.661 H1 C4 H3 110.668
H1 C4 O5 105.617 H2 C4 H3 108.976
H2 C4 O5 110.448 H3 C4 O5 110.447
C4 O5 C7 115.092 O5 C7 O6 123.451
O5 C7 C9 110.657 O6 C7 C9 125.892
C7 C9 H8 116.976 C7 C9 C12 120.935
H8 C9 C12 122.089 C9 C12 H10 121.384
C9 C12 H11 120.399 H10 C12 H11 118.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.308      
2 H -0.096      
3 H -0.096      
4 C 0.812      
5 O -0.500      
6 O -0.540      
7 C 0.414      
8 H -0.654      
9 C 1.339      
10 H -0.378      
11 H -0.383      
12 C 0.389      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.050 -1.610 0.000 1.611
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.292 0.623 -0.001
y 0.623 -38.864 0.002
z -0.001 0.002 -36.410
Traceless
 xyz
x 11.346 0.623 -0.001
y 0.623 -7.513 0.002
z -0.001 0.002 -3.832
Polar
3z2-r2-7.664
x2-y212.573
xy0.623
xz-0.001
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.291 -0.375 -0.000
y -0.375 8.126 0.000
z -0.000 0.000 6.094


<r2> (average value of r2) Å2
<r2> 177.667
(<r2>)1/2 13.329