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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-192.913324
Energy at 298.15K-192.921830
Nuclear repulsion energy167.761921
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 B3LYP/STO-3G
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 3388 3023 0.00      
2 A1 1626 1451 0.00      
3 A1 1242 1109 0.00      
4 A1 1141 1018 0.00      
5 A1 667 595 0.00      
6 A2 3530 3150 0.00      
7 A2 1266 1130 0.00      
8 A2 902 805 0.00      
9 B1 3530 3150 0.00      
10 B1 1270 1133 0.00      
11 B1 1086 969 0.00      
12 B1 305 272 0.00      
13 B2 3390 3025 0.74      
14 B2 1710 1526 5.33      
15 B2 1554 1387 0.01      
16 B2 1178 1051 0.00      
17 B2 1027 916 6.61      
18 E 3536 3155 0.02      
18 E 3536 3155 0.02      
19 E 3382 3018 1.97      
19 E 3382 3018 1.97      
20 E 1597 1425 0.14      
20 E 1597 1425 0.14      
21 E 1290 1151 2.29      
21 E 1290 1151 2.29      
22 E 1202 1073 1.77      
22 E 1202 1073 1.77      
23 E 970 866 1.43      
23 E 970 866 1.43      
24 E 843 752 0.10      
24 E 843 752 0.10      
25 E 323 288 0.08      
25 E 323 288 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 27546.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 24582.7 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 B3LYP/STO-3G
ABC
0.34649 0.13382 0.13382

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.771 1.299
C3 0.000 -0.771 1.299
C4 -0.771 0.000 -1.299
C5 0.771 0.000 -1.299
H6 0.921 1.283 1.602
H7 -0.921 1.283 1.602
H8 -0.921 -1.283 1.602
H9 0.921 -1.283 1.602
H10 -1.283 -0.921 -1.602
H11 -1.283 0.921 -1.602
H12 1.283 0.921 -1.602
H13 1.283 -0.921 -1.602

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51031.51031.51031.51032.24992.24992.24992.24992.24992.24992.24992.2499
C21.51031.54222.81682.81681.09681.09682.27152.27153.59523.17553.17553.5952
C31.51031.54222.81682.81682.27152.27151.09681.09683.17553.59523.59523.1755
C41.51032.81682.81681.54223.59523.17553.17553.59521.09681.09682.27152.2715
C51.51032.81682.81681.54223.17553.59523.59523.17552.27152.27151.09681.0968
H62.24991.09682.27153.59523.17551.84263.15872.56564.47073.90643.24553.9064
H72.24991.09682.27153.17553.59521.84262.56563.15873.90643.24553.90644.4707
H82.24992.27151.09683.17553.59523.15872.56561.84263.24553.90644.47073.9064
H92.24992.27151.09683.59523.17552.56563.15871.84263.90644.47073.90643.2455
H102.24993.59523.17551.09682.27154.47073.90643.24553.90641.84263.15872.5656
H112.24993.17553.59521.09682.27153.90643.24553.90644.47071.84262.56563.1587
H122.24993.17553.59522.27151.09683.24553.90644.47073.90643.15872.56561.8426
H132.24993.59523.17552.27151.09683.90644.47073.90643.24552.56563.15871.8426

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 59.297 C1 C2 H6 118.454
C1 C2 H7 118.454 C1 C3 C2 59.297
C1 C3 H8 118.454 C1 C3 H9 118.454
C1 C4 C5 59.297 C1 C4 H10 118.454
C1 C4 H11 118.454 C1 C5 C4 59.297
C1 C5 H12 118.454 C1 C5 H13 118.454
C2 C1 C3 61.407 C2 C1 C4 137.671
C2 C1 C5 137.671 C2 C3 H8 117.808
C2 C3 H9 117.808 C3 C1 C4 137.671
C3 C1 C5 137.671 C3 C2 H6 117.808
C3 C2 H7 117.808 C4 C1 C5 61.407
C4 C5 H12 117.808 C4 C5 H13 117.808
C5 C4 H10 117.808 C5 C4 H11 117.808
H6 C2 H7 114.278 H8 C3 H9 114.278
H10 C4 H11 114.278 H12 C5 H13 114.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.025      
2 C -0.160      
3 C -0.160      
4 C -0.160      
5 C -0.160      
6 H 0.083      
7 H 0.083      
8 H 0.083      
9 H 0.083      
10 H 0.083      
11 H 0.083      
12 H 0.083      
13 H 0.083      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.938 0.000 0.000
y 0.000 -28.938 0.000
z 0.000 0.000 -30.263
Traceless
 xyz
x 0.663 0.000 0.000
y 0.000 0.663 0.000
z 0.000 0.000 -1.326
Polar
3z2-r2-2.651
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.708 0.000 0.000
y 0.000 3.708 0.000
z 0.000 0.000 4.598


<r2> (average value of r2) Å2
<r2> 113.588
(<r2>)1/2 10.658