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All results from a given calculation for C5H6 (Propellane)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-31.413428
Energy at 298.15K-31.419877
HF Energy-30.790756
Nuclear repulsion energy83.843073
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/CEP-31G*
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' 3166 3006 0.00      
2 A1' 1569 1490 0.00      
3 A1' 1159 1100 0.00      
4 A1' 911 865 0.00      
5 A1" 925 878 0.00      
6 A2' 3263 3098 0.00      
7 A2' 952 903 0.00      
8 A2" 1121 1065 36.73      
9 A2" 669 635 98.63      
10 E' 3270 3105 19.84      
10 E' 3270 3105 19.84      
11 E' 3161 3001 31.29      
11 E' 3161 3001 31.29      
12 E' 1520 1443 2.65      
12 E' 1520 1443 2.65      
13 E' 1227 1165 0.43      
13 E' 1227 1165 0.43      
14 E' 1111 1055 0.71      
14 E' 1111 1055 0.71      
15 E' 530 503 0.06      
15 E' 530 503 0.06      
16 E" 1155 1097 0.00      
16 E" 1155 1097 0.00      
17 E" 1068 1014 0.00      
17 E" 1068 1014 0.00      
18 E" 770 731 0.00      
18 E" 770 731 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20679.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19632.9 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/CEP-31G*
ABC
0.28035 0.28035 0.19141

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.304 0.000
C2 0.000 0.000 0.819
C3 1.129 -0.652 0.000
C4 -1.129 -0.652 0.000
C5 0.000 0.000 -0.819
H6 0.928 1.892 0.000
H7 -0.928 1.892 0.000
H8 1.174 -1.749 0.000
H9 2.102 -0.142 0.000
H10 -2.102 -0.142 0.000
H11 -1.174 -1.749 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.53992.25882.25881.53991.09821.09823.27152.55172.55173.2715
C21.53991.54001.54001.63792.26052.26052.26052.26052.26052.2605
C32.25881.54002.25891.54002.55173.27151.09821.09823.27152.5517
C42.25881.54002.25891.54003.27152.55172.55173.27151.09821.0982
C51.53991.63791.54001.54002.26052.26052.26052.26052.26052.2605
H61.09822.26052.55173.27152.26051.85563.64932.34873.64934.2043
H71.09822.26053.27152.55172.26051.85564.20433.64932.34873.6493
H83.27152.26051.09822.55172.26053.64934.20431.85563.64932.3487
H92.55172.26051.09823.27152.26052.34873.64931.85564.20433.6493
H102.55172.26053.27151.09822.26053.64932.34873.64934.20431.8556
H113.27152.26052.55171.09822.26054.20433.64932.34873.64931.8556

picture of Propellane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 94.347 C1 C2 C4 94.347
C1 C2 C5 57.874 C1 C5 C2 57.874
C1 C5 C3 94.347 C1 C5 C4 94.347
C2 C1 C5 64.253 C2 C1 H6 116.942
C2 C1 H7 116.942 C2 C3 C5 64.253
C2 C3 H8 116.942 C2 C3 H9 116.942
C2 C4 C5 64.253 C2 C4 H10 116.942
C2 C4 H11 116.942 C3 C2 C4 94.347
C3 C2 C5 57.874 C3 C5 C4 94.347
C4 C2 C5 57.874 C5 C1 H6 116.942
C5 C1 H7 116.942 C5 C3 H8 116.942
C5 C3 H9 116.942 C5 C4 H10 116.942
C5 C4 H11 116.942 H6 C1 H7 115.311
H8 C3 H9 115.311 H10 C4 H11 115.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability