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

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-194.139043
Energy at 298.15K-194.146259
HF Energy-193.414824
Nuclear repulsion energy163.135438
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 CCD/6-311G**
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 3265 3118 8.95      
2 A1 3212 3068 9.64      
3 A1 3060 2923 39.74      
4 A1 1531 1462 0.11      
5 A1 1523 1455 2.81      
6 A1 1325 1265 0.22      
7 A1 1125 1075 2.89      
8 A1 1062 1014 0.00      
9 A1 936 894 2.02      
10 A1 823 786 0.13      
11 A2 3076 2938 0.00      
12 A2 1252 1196 0.00      
13 A2 1016 971 0.00      
14 A2 628 600 0.00      
15 A2 76 73 0.00      
16 B1 3096 2957 49.92      
17 B1 1168 1115 3.90      
18 B1 973 929 6.39      
19 B1 827 790 3.79      
20 B1 616 588 58.62      
21 B1 421 402 7.77      
22 B2 3252 3106 8.44      
23 B2 3048 2911 34.80      
24 B2 1498 1431 0.60      
25 B2 1410 1347 7.52      
26 B2 1328 1269 0.46      
27 B2 1319 1259 3.28      
28 B2 1073 1025 0.34      
29 B2 919 878 12.67      
30 B2 727 694 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 22791.4 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 21768.1 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 CCD/6-311G**
ABC
0.26135 0.25352 0.13513

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.269
C2 0.000 1.146 0.508
C3 0.000 -1.146 0.508
C4 0.000 0.774 -0.967
C5 0.000 -0.774 -0.967
H6 0.000 0.000 2.356
H7 0.000 2.206 0.729
H8 0.000 -2.206 0.729
H9 0.881 1.186 -1.478
H10 -0.881 1.186 -1.478
H11 0.881 -1.186 -1.478
H12 -0.881 -1.186 -1.478

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37571.37572.36632.36631.08702.27152.27153.11913.11913.11913.1191
C21.37572.29191.52112.42122.17461.08323.35962.17302.17303.18693.1869
C31.37572.29192.42121.52112.17463.35961.08323.18693.18692.17302.1730
C42.36631.52112.42121.54823.41202.21993.42921.09821.09822.20832.2083
C52.36632.42121.52111.54823.41203.42922.21992.20832.20831.09821.0982
H61.08702.17462.17463.41203.41202.74142.74144.10884.10884.10884.1088
H72.27151.08323.35962.21993.42922.74144.41272.58632.58634.14154.1415
H82.27153.35961.08323.42922.21992.74144.41274.14154.14152.58632.5863
H93.11912.17303.18691.09822.20834.10882.58634.14151.76112.37112.9535
H103.11912.17303.18691.09822.20834.10882.58634.14151.76112.95352.3711
H113.11913.18692.17302.20831.09824.10884.14152.58632.37112.95351.7611
H123.11913.18692.17302.20831.09824.10884.14152.58632.95352.37111.7611

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 109.440 C1 C2 H7 134.634
C1 C3 C5 109.440 C1 C3 H8 134.634
C2 C1 C3 112.817 C2 C1 H6 123.592
C2 C4 C5 104.151 C2 C4 H9 111.087
C2 C4 H10 111.087 C3 C1 H6 123.592
C3 C5 C4 104.151 C3 C5 H11 111.087
C3 C5 H12 111.087 C4 C2 H7 115.925
C4 C5 H11 112.004 C4 C5 H12 112.004
C5 C3 H8 115.925 C5 C4 H9 112.004
C5 C4 H10 112.004 H9 C4 H10 106.609
H11 C5 H12 106.609
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability