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All results from a given calculation for C5H7 (cyclopentenyl radical)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-194.654053
Energy at 298.15K-194.661313
HF Energy-194.654053
Nuclear repulsion energy163.806822
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 mPW1PW91/6-31G(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 A1 3262 3115 7.48      
2 A1 3205 3060 11.40      
3 A1 3045 2907 35.47      
4 A1 1504 1436 0.12      
5 A1 1487 1420 4.21      
6 A1 1293 1234 0.37      
7 A1 1113 1062 3.33      
8 A1 1054 1006 0.00      
9 A1 933 891 3.10      
10 A1 814 777 0.30      
11 A2 3056 2917 0.00      
12 A2 1232 1176 0.00      
13 A2 991 946 0.00      
14 A2 618 590 0.00      
15 A2 124 118 0.00      
16 B1 3076 2937 39.92      
17 B1 1142 1091 2.27      
18 B1 962 918 3.75      
19 B1 809 773 1.66      
20 B1 611 583 46.36      
21 B1 427 407 6.92      
22 B2 3252 3105 8.24      
23 B2 3032 2895 34.48      
24 B2 1470 1403 0.35      
25 B2 1432 1367 3.71      
26 B2 1325 1265 4.53      
27 B2 1303 1244 1.90      
28 B2 1090 1040 0.92      
29 B2 929 887 13.83      
30 B2 725 692 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 22656.2 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 21629.9 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 mPW1PW91/6-31G(2df,p)
ABC
0.26305 0.25645 0.13631

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.264
C2 0.000 1.143 0.503
C3 0.000 -1.143 0.503
C4 0.000 0.770 -0.959
C5 0.000 -0.770 -0.959
H6 0.000 0.000 2.349
H7 0.000 2.201 0.724
H8 0.000 -2.201 0.724
H9 0.874 1.185 -1.477
H10 -0.874 1.185 -1.477
H11 0.874 -1.185 -1.477
H12 -0.874 -1.185 -1.477

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37341.37342.35272.35271.08502.26632.26633.11133.11133.11133.1113
C21.37342.28601.50862.40762.17161.08073.35122.16432.16433.17833.1783
C31.37342.28602.40761.50862.17163.35121.08073.17833.17832.16432.1643
C42.35271.50862.40761.54003.39662.20873.41431.09711.09712.20302.2030
C52.35272.40761.50861.54003.39663.41432.20872.20302.20301.09711.0971
H61.08502.17162.17163.39663.39662.73612.73614.09954.09954.09954.0995
H72.26631.08073.35122.20873.41432.73614.40182.57642.57644.13144.1314
H82.26633.35121.08073.41432.20872.73614.40184.13144.13142.57642.5764
H93.11132.16433.17831.09712.20304.09952.57644.13141.74722.36972.9442
H103.11132.16433.17831.09712.20304.09952.57644.13141.74722.94422.3697
H113.11133.17832.16432.20301.09714.09954.13142.57642.36972.94421.7472
H123.11133.17832.16432.20301.09714.09954.13142.57642.94422.36971.7472

picture of cyclopentenyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 109.353 C1 C2 H7 134.540
C1 C3 C5 109.353 C1 C3 H8 134.540
C2 C1 C3 112.664 C2 C1 H6 123.668
C2 C4 C5 104.315 C2 C4 H9 111.344
C2 C4 H10 111.344 C3 C1 H6 123.668
C3 C5 C4 104.315 C3 C5 H11 111.344
C3 C5 H12 111.344 C4 C2 H7 116.107
C4 C5 H11 112.219 C4 C5 H12 112.219
C5 C3 H8 116.107 C5 C4 H9 112.219
C5 C4 H10 112.219 H9 C4 H10 105.558
H11 C5 H12 105.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.098      
2 C -0.126      
3 C -0.126      
4 C -0.287      
5 C -0.287      
6 H 0.120      
7 H 0.131      
8 H 0.131      
9 H 0.136      
10 H 0.136      
11 H 0.136      
12 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.331 0.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.799 0.000 0.000
y 0.000 -28.348 0.000
z 0.000 0.000 -29.444
Traceless
 xyz
x -2.902 0.000 0.000
y 0.000 2.273 0.000
z 0.000 0.000 0.629
Polar
3z2-r21.259
x2-y2-3.450
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.887 0.000 0.000
y 0.000 9.065 0.000
z 0.000 0.000 8.015


<r2> (average value of r2) Å2
<r2> 98.749
(<r2>)1/2 9.937