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

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-193.696071
Energy at 298.15K-193.703299
HF Energy-193.312677
Nuclear repulsion energy160.589175
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 MP2/LANL2DZ
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 3260 3140 19.02      
2 A1 3204 3086 7.79      
3 A1 3032 2920 48.06      
4 A1 1533 1477 6.20      
5 A1 1499 1443 0.55      
6 A1 1300 1252 1.97      
7 A1 1131 1089 5.83      
8 A1 1041 1003 0.33      
9 A1 902 869 4.60      
10 A1 822 791 0.00      
11 A2 3065 2952 0.00      
12 A2 1242 1196 0.00      
13 A2 1038 1000 0.00      
14 A2 588 566 0.00      
15 A2 117 112 0.00      
16 B1 3085 2971 65.30      
17 B1 1159 1116 4.13      
18 B1 985 949 12.14      
19 B1 843 812 0.30      
20 B1 598 576 98.46      
21 B1 443 426 11.14      
22 B2 3243 3123 16.54      
23 B2 3019 2907 40.80      
24 B2 1514 1459 1.60      
25 B2 1402 1350 10.87      
26 B2 1348 1298 0.89      
27 B2 1291 1243 4.03      
28 B2 1094 1054 0.58      
29 B2 899 866 17.72      
30 B2 724 698 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 22709.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 21871.3 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 MP2/LANL2DZ
ABC
0.25283 0.24523 0.13067

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.289
C2 0.000 1.166 0.520
C3 0.000 -1.166 0.520
C4 0.000 0.789 -0.986
C5 0.000 -0.789 -0.986
H6 0.000 0.000 2.382
H7 0.000 2.236 0.732
H8 0.000 -2.236 0.732
H9 0.892 1.200 -1.499
H10 -0.892 1.200 -1.499
H11 0.892 -1.200 -1.499
H12 -0.892 -1.200 -1.499

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.39671.39672.40772.40771.09262.30392.30393.16333.16333.16333.1633
C21.39672.33231.55242.46812.19651.09033.40842.20732.20733.23593.2359
C31.39672.33232.46811.55242.19653.40841.09033.23593.23592.20732.2073
C42.40771.55242.46811.57843.45862.24593.47871.10771.10772.23972.2397
C52.40772.46811.55241.57843.45863.47872.24592.23972.23971.10771.1077
H61.09262.19652.19653.45863.45862.77822.77824.15844.15844.15844.1584
H72.30391.09033.40842.24593.47872.77824.47142.61612.61614.19274.1927
H82.30393.40841.09033.47872.24592.77824.47144.19274.19272.61612.6161
H93.16332.20733.23591.10772.23974.15842.61614.19271.78312.40072.9905
H103.16332.20733.23591.10772.23974.15842.61614.19271.78312.99052.4007
H113.16333.23592.20732.23971.10774.15844.19272.61612.40072.99051.7831
H123.16333.23592.20732.23971.10774.15844.19272.61612.99052.40071.7831

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 109.339 C1 C2 H7 135.390
C1 C3 C5 109.339 C1 C3 H8 135.390
C2 C1 C3 113.215 C2 C1 H6 123.393
C2 C4 C5 104.053 C2 C4 H9 111.043
C2 C4 H10 111.043 C3 C1 H6 123.393
C3 C5 C4 104.053 C3 C5 H11 111.043
C3 C5 H12 111.043 C4 C2 H7 115.270
C4 C5 H11 111.788 C4 C5 H12 111.788
C5 C3 H8 115.270 C5 C4 H9 111.788
C5 C4 H10 111.788 H9 C4 H10 107.194
H11 C5 H12 107.194
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability