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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: CID/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CID/Def2TZVPP
 hartrees
Energy at 0K-194.703743
Energy at 298.15K 
HF Energy-193.974791
Nuclear repulsion energy181.033338
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 CID/Def2TZVPP
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' 3246 3246 0.00      
2 A1' 3177 3177 0.00      
3 A1' 1630 1630 0.00      
4 A1' 1183 1183 0.00      
5 A1' 956 956 0.00      
6 A1" 1057 1057 0.00      
7 A2' 3234 3234 0.00      
8 A2' 1009 1009 0.00      
9 A2" 3239 3239 111.52      
10 A2" 1338 1338 37.81      
11 A2" 904 904 5.66      
12 E' 3241 3241 63.39      
12 E' 3241 3241 63.39      
13 E' 3171 3171 74.26      
13 E' 3171 3171 74.26      
14 E' 1578 1578 0.46      
14 E' 1578 1578 0.46      
15 E' 1346 1346 1.75      
15 E' 1346 1346 1.75      
16 E' 1173 1173 0.48      
16 E' 1173 1173 0.48      
17 E' 961 961 0.60      
17 E' 961 961 0.60      
18 E' 564 564 0.23      
18 E' 564 564 0.23      
19 E" 1288 1288 0.00      
19 E" 1288 1288 0.00      
20 E" 1222 1222 0.00      
20 E" 1222 1222 0.00      
21 E" 1089 1089 0.00      
21 E" 1089 1089 0.00      
22 E" 844 844 0.00      
22 E" 844 844 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26963.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26963.1 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 CID/Def2TZVPP
ABC
0.24531 0.24531 0.21213

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/Def2TZVPP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.932
C2 0.000 1.228 0.000
C3 1.063 -0.614 0.000
C4 -1.063 -0.614 0.000
C5 0.000 0.000 -0.932
H6 0.000 0.000 2.011
H7 0.000 0.000 -2.011
H8 0.895 1.835 0.000
H9 -0.895 1.835 0.000
H10 1.142 -1.693 0.000
H11 2.037 -0.143 0.000
H12 -2.037 -0.143 0.000
H13 -1.142 -1.693 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54121.54121.54121.86351.07892.94252.24442.24442.24442.24442.24442.2444
C21.54122.12642.12641.54122.35592.35591.08171.08173.13572.45492.45493.1357
C31.54122.12642.12641.54122.35592.35592.45493.13571.08171.08173.13572.4549
C41.54122.12642.12641.54122.35592.35593.13572.45492.45493.13571.08171.0817
C51.86351.54121.54121.54122.94251.07892.24442.24442.24442.24442.24442.2444
H61.07892.35592.35592.35592.94254.02142.86572.86572.86572.86572.86572.8657
H72.94252.35592.35592.35591.07894.02142.86572.86572.86572.86572.86572.8657
H82.24441.08172.45493.13572.24442.86572.86571.78993.53662.28383.53664.0737
H92.24441.08173.13572.45492.24442.86572.86571.78994.07373.53662.28383.5366
H102.24443.13571.08172.45492.24442.86572.86573.53664.07371.78993.53662.2838
H112.24442.45491.08173.13572.24442.86572.86572.28383.53661.78994.07373.5366
H122.24442.45493.13571.08172.24442.86572.86573.53662.28383.53664.07371.7899
H132.24443.13572.45491.08172.24442.86572.86574.07373.53662.28383.53661.7899

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.395 C1 C2 H8 116.578
C1 C2 H9 116.578 C1 C3 C5 74.395
C1 C3 H10 116.578 C1 C3 H11 116.578
C1 C4 C5 74.395 C1 C4 H12 116.578
C1 C4 H13 116.578 C2 C1 C3 87.235
C2 C1 C4 87.235 C2 C1 H6 127.197
C2 C5 C3 87.235 C2 C5 C4 87.235
C2 C5 H7 127.197 C3 C1 C4 87.235
C3 C1 H6 127.197 C3 C5 C4 87.235
C3 C5 H7 127.197 C4 C1 H6 127.197
C4 C5 H7 127.197 C5 C2 H8 116.578
C5 C2 H9 116.578 C5 C3 H10 116.578
C5 C3 H11 116.578 C5 C4 H12 116.578
C5 C4 H13 116.578 H8 C2 H9 111.656
H10 C3 H11 111.656 H12 C4 H13 111.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability