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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-193.348851
Energy at 298.15K-193.356013
HF Energy-193.348851
Nuclear repulsion energy161.732539
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 PBEPBE/3-21G
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 3188 3159 6.61      
2 A1 3130 3102 9.11      
3 A1 2969 2942 22.18      
4 A1 1491 1477 8.58      
5 A1 1443 1430 0.28      
6 A1 1232 1220 1.90      
7 A1 1090 1080 3.94      
8 A1 1010 1001 0.10      
9 A1 886 878 4.78      
10 A1 808 800 0.11      
11 A2 2980 2953 0.00      
12 A2 1223 1212 0.00      
13 A2 966 957 0.00      
14 A2 592 587 0.00      
15 A2 126 125 0.00      
16 B1 3001 2974 31.75      
17 B1 1155 1144 0.98      
18 B1 931 922 6.56      
19 B1 787 780 0.41      
20 B1 586 581 73.34      
21 B1 419 415 12.46      
22 B2 3176 3147 6.32      
23 B2 2956 2929 26.80      
24 B2 1470 1456 1.60      
25 B2 1404 1391 7.83      
26 B2 1302 1291 0.59      
27 B2 1261 1250 13.16      
28 B2 1088 1079 0.55      
29 B2 889 881 13.92      
30 B2 724 718 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 22140.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 21939.4 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 PBEPBE/3-21G
ABC
0.25586 0.24998 0.13283

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.277
C2 0.000 1.159 0.512
C3 0.000 -1.159 0.512
C4 0.000 0.783 -0.974
C5 0.000 -0.783 -0.974
H6 0.000 0.000 2.370
H7 0.000 2.226 0.729
H8 0.000 -2.226 0.729
H9 0.891 1.193 -1.488
H10 -0.891 1.193 -1.488
H11 0.891 -1.193 -1.488
H12 -0.891 -1.193 -1.488

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.38851.38852.38352.38351.09312.29272.29273.14113.14113.14113.1411
C21.38852.31761.53272.44552.18981.08913.39192.19072.19073.21363.2136
C31.38852.31762.44551.53272.18983.39191.08913.21363.21362.19072.1907
C42.38351.53272.44551.56693.43472.23163.45781.10781.10782.22822.2282
C52.38352.44551.53271.56693.43473.45782.23162.22822.22821.10781.1078
H61.09312.18982.18983.43473.43472.76602.76604.13624.13624.13624.1362
H72.29271.08913.39192.23163.45782.76604.45232.60362.60364.17134.1713
H82.29273.39191.08913.45782.23162.76604.45234.17134.17132.60362.6036
H93.14112.19073.21361.10782.22824.13622.60364.17131.78292.38552.9781
H103.14112.19073.21361.10782.22824.13622.60364.17131.78292.97812.3855
H113.14113.21362.19072.22821.10784.13624.17132.60362.38552.97811.7829
H123.14113.21362.19072.22821.10784.13624.17132.60362.97812.38551.7829

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 109.256 C1 C2 H7 135.104
C1 C3 C5 109.256 C1 C3 H8 135.104
C2 C1 C3 113.139 C2 C1 H6 123.431
C2 C4 C5 104.175 C2 C4 H9 111.103
C2 C4 H10 111.103 C3 C1 H6 123.431
C3 C5 C4 104.175 C3 C5 H11 111.103
C3 C5 H12 111.103 C4 C2 H7 115.640
C4 C5 H11 111.682 C4 C5 H12 111.682
C5 C3 H8 115.640 C5 C4 H9 111.682
C5 C4 H10 111.682 H9 C4 H10 107.168
H11 C5 H12 107.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 C -0.177      
3 C -0.177      
4 C -0.445      
5 C -0.445      
6 H 0.189      
7 H 0.194      
8 H 0.194      
9 H 0.217      
10 H 0.217      
11 H 0.217      
12 H 0.217      


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 -0.440 0.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.945 0.000 0.000
y 0.000 -28.334 0.000
z 0.000 0.000 -29.516
Traceless
 xyz
x -4.020 0.000 0.000
y 0.000 2.896 0.000
z 0.000 0.000 1.124
Polar
3z2-r22.248
x2-y2-4.611
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.089 0.000 0.000
y 0.000 8.775 0.000
z 0.000 0.000 7.665


<r2> (average value of r2) Å2
<r2> 101.023
(<r2>)1/2 10.051