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All results from a given calculation for C5H8 (Cyclobutane, methylene-)

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-194.199516
Energy at 298.15K-194.207883
Nuclear repulsion energy168.240843
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 LSDA/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3082 3036 2.71      
2 A' 3078 3032 25.70      
3 A' 3045 2999 6.97      
4 A' 3014 2969 36.84      
5 A' 2983 2938 10.14      
6 A' 1740 1713 41.13      
7 A' 1434 1413 0.73      
8 A' 1403 1382 4.99      
9 A' 1372 1351 2.17      
10 A' 1206 1188 2.94      
11 A' 1175 1158 0.31      
12 A' 1051 1036 0.34      
13 A' 984 970 1.00      
14 A' 884 871 0.02      
15 A' 848 836 56.89      
16 A' 743 731 3.51      
17 A' 650 640 2.86      
18 A' 380 375 9.12      
19 A' 124 122 0.10      
20 A" 3173 3125 7.03      
21 A" 3049 3003 18.78      
22 A" 2980 2935 29.50      
23 A" 1386 1365 11.32      
24 A" 1250 1231 0.02      
25 A" 1189 1171 0.95      
26 A" 1173 1155 2.26      
27 A" 1150 1133 2.77      
28 A" 998 983 0.22      
29 A" 936 922 1.74      
30 A" 889 875 0.78      
31 A" 781 769 0.23      
32 A" 619 610 0.16      
33 A" 345 339 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24555.7 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 24187.4 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 LSDA/6-31+G**
ABC
0.34839 0.15557 0.11785

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.297 -0.361 1.078
C2 0.297 -0.361 -1.078
C3 -0.129 0.600 0.000
C4 0.297 -1.465 0.000
C5 -0.802 1.748 0.000
H6 -0.360 -0.476 1.957
H7 -0.360 -0.476 -1.957
H8 1.322 -0.145 1.436
H9 1.322 -0.145 -1.436
H10 -1.090 2.238 0.937
H11 -1.090 2.238 -0.937
H12 1.136 -2.179 0.000
H13 -0.651 -2.026 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.15631.50571.54292.61111.10333.10731.10662.72342.94923.56912.27432.1989
C22.15631.50571.54292.61113.10731.10332.72341.10663.56912.94922.27432.1989
C31.50571.50572.10801.33082.24472.24472.17282.17282.11772.11773.05352.6772
C41.54291.54292.10803.39552.28872.28872.20312.20314.06334.06331.10181.1023
C52.61112.61111.33083.39552.99482.99483.18663.18661.09581.09584.37943.7770
H61.10333.10732.24472.28872.99483.91321.79183.80112.98934.03352.99482.5131
H73.10731.10332.24472.28872.99483.91323.80111.79184.03352.98932.99482.5131
H81.10662.72342.17282.20313.18661.79183.80112.87183.42684.13822.49733.0814
H92.72341.10662.17282.20313.18663.80111.79182.87184.13823.42682.49733.0814
H102.94923.56912.11774.06331.09582.98934.03353.42684.13821.87395.03434.3874
H113.56912.94922.11774.06331.09584.03352.98934.13823.42681.87395.03434.3874
H122.27432.27433.05351.10184.37942.99482.99482.49732.49735.03435.03431.7938
H132.19892.19892.67721.10233.77702.51312.51313.08143.08144.38744.38741.7938

picture of Cyclobutane, methylene- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C2 91.459 C1 C3 C5 133.920
C1 C4 C2 88.653 C1 C4 H12 117.648
C1 C4 H13 111.363 C2 C3 C5 133.920
C2 C4 H12 117.648 C2 C4 H13 111.363
C3 C1 C4 87.484 C3 C1 H6 117.895
C3 C1 H8 111.657 C3 C2 C4 87.484
C3 C2 H7 117.895 C3 C2 H9 111.657
C3 C5 H10 121.239 C3 C5 H11 121.239
C4 C1 H6 118.801 C4 C1 H8 111.449
C4 C2 H7 118.801 C4 C2 H9 111.449
H6 C1 H8 108.348 H7 C2 H9 108.348
H10 C5 H11 117.521 H12 C4 H13 108.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.609      
2 C -0.609      
3 C 0.148      
4 C -0.258      
5 C -0.121      
6 H 0.188      
7 H 0.188      
8 H 0.198      
9 H 0.198      
10 H 0.157      
11 H 0.157      
12 H 0.171      
13 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.296 -0.620 0.000 0.687
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.446 -0.724 0.000
y -0.724 -32.935 0.000
z 0.000 0.000 -30.913
Traceless
 xyz
x -0.522 -0.724 0.000
y -0.724 -1.256 0.000
z 0.000 0.000 1.778
Polar
3z2-r23.555
x2-y20.489
xy-0.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.943 -1.725 0.000
y -1.725 10.391 0.000
z 0.000 0.000 8.509


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000