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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-195.117283
Energy at 298.15K-195.126023
Nuclear repulsion energy170.192785
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 B1B95/6-31G
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 3170 3023 0.00      
2 A1 1529 1458 0.00      
3 A1 1124 1072 0.00      
4 A1 1089 1038 0.00      
5 A1 619 591 0.00      
6 A2 3248 3098 0.00      
7 A2 1193 1138 0.00      
8 A2 869 829 0.00      
9 B1 3248 3097 0.00      
10 B1 1205 1149 0.00      
11 B1 1047 998 0.00      
12 B1 299 285 0.00      
13 B2 3170 3024 33.03      
14 B2 1618 1544 0.53      
15 B2 1483 1414 0.42      
16 B2 1065 1016 22.64      
17 B2 933 890 23.41      
18 E 3263 3112 25.90      
18 E 3263 3112 25.90      
19 E 3164 3018 20.75      
19 E 3164 3018 20.75      
20 E 1505 1436 2.03      
20 E 1505 1436 2.03      
21 E 1214 1158 4.64      
21 E 1214 1158 4.64      
22 E 1133 1080 3.58      
22 E 1133 1080 3.58      
23 E 911 868 4.60      
23 E 911 868 4.60      
24 E 812 775 0.72      
24 E 812 775 0.72      
25 E 319 304 0.54      
25 E 319 304 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 25774.5 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 24581.1 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 B1B95/6-31G
ABC
0.35289 0.13865 0.13865

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

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 1.272
C3 0.000 -0.765 1.272
C4 -0.765 0.000 -1.272
C5 0.765 0.000 -1.272
H6 0.910 1.271 1.575
H7 -0.910 1.271 1.575
H8 -0.910 -1.271 1.575
H9 0.910 -1.271 1.575
H10 -1.271 -0.910 -1.575
H11 -1.271 0.910 -1.575
H12 1.271 0.910 -1.575
H13 1.271 -0.910 -1.575

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48441.48441.48441.48442.21932.21932.21932.21932.21932.21932.21932.2193
C21.48441.52932.76472.76471.08451.08452.25052.25053.53953.12183.12183.5395
C31.48441.52932.76472.76472.25052.25051.08451.08453.12183.53953.53953.1218
C41.48442.76472.76471.52933.53953.12183.12183.53951.08451.08452.25052.2505
C51.48442.76472.76471.52933.12183.53953.53953.12182.25052.25051.08451.0845
H62.21931.08452.25053.53953.12181.81963.12662.54254.40913.84883.19173.8488
H72.21931.08452.25053.12183.53951.81962.54253.12663.84883.19173.84884.4091
H82.21932.25051.08453.12183.53953.12662.54251.81963.19173.84884.40913.8488
H92.21932.25051.08453.53953.12182.54253.12661.81963.84884.40913.84883.1917
H102.21933.53953.12181.08452.25054.40913.84883.19173.84881.81963.12662.5425
H112.21933.12183.53951.08452.25053.84883.19173.84884.40911.81962.54253.1266
H122.21933.12183.53952.25051.08453.19173.84884.40913.84883.12662.54251.8196
H132.21933.53953.12182.25051.08453.84884.40913.84883.19172.54253.12661.8196

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 58.992 C1 C2 H6 118.692
C1 C2 H7 118.692 C1 C3 C2 58.992
C1 C3 H8 118.692 C1 C3 H9 118.692
C1 C4 C5 58.992 C1 C4 H10 118.692
C1 C4 H11 118.692 C1 C5 C4 58.992
C1 C5 H12 118.692 C1 C5 H13 118.692
C2 C1 C3 62.015 C2 C1 C4 137.275
C2 C1 C5 137.275 C2 C3 H8 117.847
C2 C3 H9 117.847 C3 C1 C4 137.275
C3 C1 C5 137.275 C3 C2 H6 117.847
C3 C2 H7 117.847 C4 C1 C5 62.015
C4 C5 H12 117.847 C4 C5 H13 117.847
C5 C4 H10 117.847 C5 C4 H11 117.847
H6 C2 H7 114.048 H8 C3 H9 114.048
H10 C4 H11 114.048 H12 C5 H13 114.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 C -0.306      
3 C -0.306      
4 C -0.306      
5 C -0.306      
6 H 0.163      
7 H 0.163      
8 H 0.163      
9 H 0.163      
10 H 0.163      
11 H 0.163      
12 H 0.163      
13 H 0.163      


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 -30.302 0.000 0.000
y 0.000 -30.302 0.000
z 0.000 0.000 -32.158
Traceless
 xyz
x 0.928 0.000 0.000
y 0.000 0.928 0.000
z 0.000 0.000 -1.855
Polar
3z2-r2-3.711
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 6.814 0.000 0.000
y 0.000 6.814 0.000
z 0.000 0.000 7.720


<r2> (average value of r2) Å2
<r2> 111.595
(<r2>)1/2 10.564