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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-193.573735
Energy at 298.15K-193.581041
HF Energy-193.573735
Nuclear repulsion energy162.846803
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 mPW1PW91/3-21G*
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 3284 3118 6.67      
2 A1 3230 3067 6.97      
3 A1 3070 2916 21.96      
4 A1 1544 1466 8.78      
5 A1 1496 1420 0.03      
6 A1 1287 1222 2.33      
7 A1 1127 1070 3.84      
8 A1 1044 991 0.18      
9 A1 913 867 3.97      
10 A1 836 794 0.07      
11 A2 3086 2931 0.00      
12 A2 1275 1211 0.00      
13 A2 1009 958 0.00      
14 A2 633 601 0.00      
15 A2 128 121 0.00      
16 B1 3107 2950 30.30      
17 B1 1201 1141 1.18      
18 B1 978 929 6.99      
19 B1 820 778 0.96      
20 B1 615 584 82.06      
21 B1 433 411 10.48      
22 B2 3271 3106 5.37      
23 B2 3058 2904 25.64      
24 B2 1520 1443 2.23      
25 B2 1438 1366 10.34      
26 B2 1354 1286 1.50      
27 B2 1310 1244 10.67      
28 B2 1116 1060 0.51      
29 B2 914 868 13.67      
30 B2 750 712 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 22921.8 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 21766.5 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 mPW1PW91/3-21G*
ABC
0.25975 0.25286 0.13458

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.270
C2 0.000 1.150 0.509
C3 0.000 -1.150 0.509
C4 0.000 0.778 -0.969
C5 0.000 -0.778 -0.969
H6 0.000 0.000 2.353
H7 0.000 2.207 0.729
H8 0.000 -2.207 0.729
H9 0.884 1.183 -1.477
H10 -0.884 1.183 -1.477
H11 0.884 -1.183 -1.477
H12 -0.884 -1.183 -1.477

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37871.37872.37062.37061.08332.27232.27233.11913.11913.11913.1191
C21.37872.30001.52472.43012.17301.07983.36432.17482.17483.18953.1895
C31.37872.30002.43011.52472.17303.36431.07983.18953.18952.17482.1748
C42.37061.52472.43011.55673.41242.21983.43501.09731.09732.21102.2110
C52.37062.43011.52471.55673.41243.43502.21982.21102.21101.09731.0973
H61.08332.17302.17303.41243.41242.74002.74004.10534.10534.10534.1053
H72.27231.07983.36432.21983.43502.74004.41422.58842.58844.14094.1409
H82.27233.36431.07983.43502.21982.74004.41424.14094.14092.58842.5884
H93.11912.17483.18951.09732.21104.10532.58844.14091.76892.36672.9548
H103.11912.17483.18951.09732.21104.10532.58844.14091.76892.95482.3667
H113.11913.18952.17482.21101.09734.10534.14092.58842.36672.95481.7689
H123.11913.18952.17482.21101.09734.10534.14092.58842.95482.36671.7689

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 109.368 C1 C2 H7 134.759
C1 C3 C5 109.368 C1 C3 H8 134.759
C2 C1 C3 113.048 C2 C1 H6 123.476
C2 C4 C5 104.108 C2 C4 H9 111.028
C2 C4 H10 111.028 C3 C1 H6 123.476
C3 C5 C4 104.108 C3 C5 H11 111.028
C3 C5 H12 111.028 C4 C2 H7 115.873
C4 C5 H11 111.658 C4 C5 H12 111.658
C5 C3 H8 115.873 C5 C4 H9 111.658
C5 C4 H10 111.658 H9 C4 H10 107.417
H11 C5 H12 107.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C -0.200      
3 C -0.200      
4 C -0.473      
5 C -0.473      
6 H 0.215      
7 H 0.217      
8 H 0.217      
9 H 0.230      
10 H 0.230      
11 H 0.230      
12 H 0.230      


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 -0.380 0.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.912 0.000 0.000
y 0.000 -28.200 0.000
z 0.000 0.000 -29.424
Traceless
 xyz
x -4.100 0.000 0.000
y 0.000 2.968 0.000
z 0.000 0.000 1.132
Polar
3z2-r22.263
x2-y2-4.712
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.990 0.000 0.000
y 0.000 8.442 0.000
z 0.000 0.000 7.320


<r2> (average value of r2) Å2
<r2> 99.857
(<r2>)1/2 9.993