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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-194.702747
Energy at 298.15K-194.711445
HF Energy-193.975429
Nuclear repulsion energy170.942521
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/TZVP
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 3176 3011 0.00      
2 A1 1521 1442 0.00      
3 A1 1097 1040 0.00      
4 A1 1074 1018 0.00      
5 A1 608 577 0.00      
6 A2 3267 3097 0.00      
7 A2 1194 1131 0.00      
8 A2 863 818 0.00      
9 B1 3266 3096 0.00      
10 B1 1202 1140 0.00      
11 B1 1051 997 0.00      
12 B1 302 286 0.00      
13 B2 3179 3013 27.30      
14 B2 1610 1526 2.02      
15 B2 1463 1387 0.01      
16 B2 1050 995 18.16      
17 B2 906 859 19.32      
18 E 3279 3108 15.20      
18 E 3279 3108 15.20      
19 E 3174 3008 18.01      
19 E 3174 3008 18.01      
20 E 1490 1412 0.95      
20 E 1490 1412 0.95      
21 E 1205 1143 1.47      
21 E 1205 1143 1.47      
22 E 1092 1035 1.52      
22 E 1092 1035 1.52      
23 E 912 864 7.32      
23 E 912 864 7.32      
24 E 808 766 0.41      
24 E 808 766 0.41      
25 E 303 288 0.19      
25 E 303 288 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 25676.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 24339.1 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 MP2/TZVP
ABC
0.35424 0.14043 0.14043

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.765 1.263
C3 0.000 -0.765 1.263
C4 -0.765 0.000 -1.263
C5 0.765 0.000 -1.263
H6 0.915 1.259 1.563
H7 -0.915 1.259 1.563
H8 -0.915 -1.259 1.563
H9 0.915 -1.259 1.563
H10 -1.259 -0.915 -1.563
H11 -1.259 0.915 -1.563
H12 1.259 0.915 -1.563
H13 1.259 -0.915 -1.563

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47631.47631.47631.47632.20552.20552.20552.20552.20552.20552.20552.2055
C21.47631.52942.74752.74751.08221.08222.24072.24073.52013.09723.09723.5201
C31.47631.52942.74752.74752.24072.24071.08221.08223.09723.52013.52013.0972
C41.47632.74752.74751.52943.52013.09723.09723.52011.08221.08222.24072.2407
C51.47632.74752.74751.52943.09723.52013.52013.09722.24072.24071.08221.0822
H62.20551.08222.24073.52013.09721.82973.11192.51724.38423.82303.16383.8230
H72.20551.08222.24073.09723.52011.82972.51723.11193.82303.16383.82304.3842
H82.20552.24071.08223.09723.52013.11192.51721.82973.16383.82304.38423.8230
H92.20552.24071.08223.52013.09722.51723.11191.82973.82304.38423.82303.1638
H102.20553.52013.09721.08222.24074.38423.82303.16383.82301.82973.11192.5172
H112.20553.09723.52011.08222.24073.82303.16383.82304.38421.82972.51723.1119
H122.20553.09723.52012.24071.08223.16383.82304.38423.82303.11192.51721.8297
H132.20553.52013.09722.24071.08223.82304.38423.82303.16382.51723.11191.8297

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 58.804 C1 C2 H6 118.278
C1 C2 H7 118.278 C1 C3 C2 58.804
C1 C3 H8 118.278 C1 C3 H9 118.278
C1 C4 C5 58.804 C1 C4 H10 118.278
C1 C4 H11 118.278 C1 C5 C4 58.804
C1 C5 H12 118.278 C1 C5 H13 118.278
C2 C1 C3 62.392 C2 C1 C4 137.030
C2 C1 C5 137.030 C2 C3 H8 117.155
C2 C3 H9 117.155 C3 C1 C4 137.030
C3 C1 C5 137.030 C3 C2 H6 117.155
C3 C2 H7 117.155 C4 C1 C5 62.392
C4 C5 H12 117.155 C4 C5 H13 117.155
C5 C4 H10 117.155 C5 C4 H11 117.155
H6 C2 H7 115.430 H8 C3 H9 115.430
H10 C4 H11 115.430 H12 C5 H13 115.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability