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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-192.510439
Energy at 298.15K-192.517636
HF Energy-192.510439
Nuclear repulsion energy163.197668
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 LSDA/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 3192 3134 3.25      
2 A1 3136 3080 4.34      
3 A1 2968 2914 11.17      
4 A1 1480 1453 12.20      
5 A1 1452 1426 5.78      
6 A1 1234 1212 3.95      
7 A1 1097 1077 4.56      
8 A1 1041 1023 0.18      
9 A1 915 898 7.54      
10 A1 824 810 0.18      
11 A2 2980 2926 0.00      
12 A2 1209 1187 0.00      
13 A2 960 943 0.00      
14 A2 610 599 0.00      
15 A2 119 117 0.00      
16 B1 3000 2946 16.54      
17 B1 1148 1127 0.78      
18 B1 939 922 5.73      
19 B1 789 775 0.61      
20 B1 593 583 82.47      
21 B1 432 425 13.95      
22 B2 3180 3122 0.79      
23 B2 2955 2902 18.73      
24 B2 1462 1435 0.65      
25 B2 1424 1399 12.10      
26 B2 1301 1278 0.03      
27 B2 1271 1248 18.91      
28 B2 1091 1071 0.68      
29 B2 916 900 21.12      
30 B2 739 726 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 22228.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 21828.5 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 LSDA/3-21G*
ABC
0.26059 0.25545 0.13561

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.265
C2 0.000 1.148 0.503
C3 0.000 -1.148 0.503
C4 0.000 0.773 -0.960
C5 0.000 -0.773 -0.960
H6 0.000 0.000 2.358
H7 0.000 2.215 0.725
H8 0.000 -2.215 0.725
H9 0.889 1.185 -1.479
H10 -0.889 1.185 -1.479
H11 0.889 -1.185 -1.479
H12 -0.889 -1.185 -1.479

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37711.37712.35512.35511.09372.27942.27943.11833.11833.11833.1183
C21.37712.29521.51042.41472.18131.09003.36962.17312.17313.18803.1880
C31.37712.29522.41471.51042.18133.36961.09003.18803.18802.17312.1731
C42.35511.51042.41471.54643.40722.21773.43041.10881.10882.21262.2126
C52.35512.41471.51041.54643.40723.43042.21772.21262.21261.10881.1088
H61.09372.18132.18133.40723.40722.75162.75164.11374.11374.11374.1137
H72.27941.09003.36962.21773.43042.75164.42942.59042.59044.14854.1485
H82.27943.36961.09003.43042.21772.75164.42944.14854.14852.59042.5904
H93.11832.17313.18801.10882.21264.11372.59044.14851.77762.37062.9630
H103.11832.17313.18801.10882.21264.11372.59044.14851.77762.96302.3706
H113.11833.18802.17312.21261.10884.11374.14852.59042.37062.96301.7776
H123.11833.18802.17312.21261.10884.11374.14852.59042.96302.37061.7776

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 109.208 C1 C2 H7 134.689
C1 C3 C5 109.208 C1 C3 H8 134.689
C2 C1 C3 112.883 C2 C1 H6 123.559
C2 C4 C5 104.351 C2 C4 H9 111.203
C2 C4 H10 111.203 C3 C1 H6 123.559
C3 C5 C4 104.351 C3 C5 H11 111.203
C3 C5 H12 111.203 C4 C2 H7 116.103
C4 C5 H11 111.817 C4 C5 H12 111.817
C5 C3 H8 116.103 C5 C4 H9 111.817
C5 C4 H10 111.817 H9 C4 H10 106.556
H11 C5 H12 106.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 C -0.188      
3 C -0.188      
4 C -0.471      
5 C -0.471      
6 H 0.198      
7 H 0.202      
8 H 0.202      
9 H 0.229      
10 H 0.229      
11 H 0.229      
12 H 0.229      


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 -0.548 0.548
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.833 0.000 0.000
y 0.000 -28.216 0.000
z 0.000 0.000 -29.261
Traceless
 xyz
x -4.094 0.000 0.000
y 0.000 2.831 0.000
z 0.000 0.000 1.263
Polar
3z2-r22.526
x2-y2-4.617
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.092 0.000 0.000
y 0.000 8.757 0.000
z 0.000 0.000 7.664


<r2> (average value of r2) Å2
<r2> 99.429
(<r2>)1/2 9.971