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

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 CS 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-195.141435
Energy at 298.15K-195.149902
Nuclear repulsion energy167.210700
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 A' 3176 3029 7.71      
2 A' 3174 3027 43.70      
3 A' 3135 2990 19.54      
4 A' 3110 2966 39.39      
5 A' 3082 2939 5.95      
6 A' 1789 1707 20.03      
7 A' 1535 1464 0.68      
8 A' 1511 1441 1.36      
9 A' 1479 1411 1.13      
10 A' 1289 1230 0.28      
11 A' 1244 1186 0.05      
12 A' 1119 1068 0.29      
13 A' 992 946 0.93      
14 A' 948 904 53.57      
15 A' 893 852 0.04      
16 A' 765 730 2.95      
17 A' 676 645 1.32      
18 A' 390 372 7.48      
19 A' 68 65 0.01      
20 A" 3263 3112 17.27      
21 A" 3138 2993 8.55      
22 A" 3077 2935 44.48      
23 A" 1501 1431 6.59      
24 A" 1313 1253 0.00      
25 A" 1273 1214 1.25      
26 A" 1254 1196 2.11      
27 A" 1219 1163 4.51      
28 A" 1068 1018 0.06      
29 A" 963 919 1.33      
30 A" 924 882 1.43      
31 A" 833 794 0.10      
32 A" 650 620 0.09      
33 A" 363 346 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25606.6 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 24421.0 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
0.35032 0.15268 0.11409

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.172 -0.411 1.097
C2 0.172 -0.411 -1.097
C3 -0.078 0.616 0.000
C4 0.172 -1.517 0.000
C5 -0.460 1.889 0.000
H6 -0.593 -0.489 1.874
H7 -0.593 -0.489 -1.874
H8 1.144 -0.290 1.586
H9 1.144 -0.290 -1.586
H10 -0.625 2.435 0.923
H11 -0.625 2.435 -0.923
H12 1.027 -2.194 0.000
H13 -0.744 -2.111 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.19361.52291.55812.62501.09293.06841.09512.85582.96003.57942.26162.2213
C22.19361.52291.55812.62503.06841.09292.85581.09513.57942.96002.26162.2213
C31.52291.52292.14781.32922.23532.23532.19772.19772.11192.11193.01942.8073
C41.55811.55812.14783.46452.27022.27022.22842.22844.13614.13611.09081.0917
C52.62502.62501.32923.46453.03043.03043.13653.13651.08521.08524.34544.0104
H61.09293.06842.23532.27023.03043.74771.77203.87623.07464.04643.00732.4832
H73.06841.09292.23532.27023.03043.74773.87621.77204.04643.07463.00732.4832
H81.09512.85582.19772.22843.13651.77203.87623.17133.31594.10512.48023.0654
H92.85581.09512.19772.22843.13653.87621.77203.17134.10513.31592.48023.0654
H102.96003.57942.11194.13611.08523.07464.04643.31594.10511.84675.00084.6405
H113.57942.96002.11194.13611.08524.04643.07464.10513.31591.84675.00084.6405
H122.26162.26163.01941.09084.34543.00733.00732.48022.48025.00085.00081.7737
H132.22132.22132.80731.09174.01042.48322.48323.06543.06544.64054.64051.7737

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 92.143 C1 C3 C5 133.853
C1 C4 C2 89.483 C1 C4 H12 116.135
C1 C4 H13 112.732 C2 C3 C5 133.853
C2 C4 H12 116.135 C2 C4 H13 112.732
C3 C1 C4 88.385 C3 C1 H6 116.455
C3 C1 H8 113.155 C3 C2 C4 88.385
C3 C2 H7 116.455 C3 C2 H9 113.155
C3 C5 H10 121.697 C3 C5 H11 121.697
C4 C1 H6 116.721 C4 C1 H8 113.094
C4 C2 H7 116.721 C4 C2 H9 113.094
H6 C1 H8 108.162 H7 C2 H9 108.162
H10 C5 H11 116.605 H12 C4 H13 108.714
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 -0.300      
2 C -0.300      
3 C 0.051      
4 C -0.333      
5 C -0.390      
6 H 0.167      
7 H 0.167      
8 H 0.172      
9 H 0.172      
10 H 0.139      
11 H 0.139      
12 H 0.152      
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
  0.126 -0.503 0.000 0.519
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.827 -0.453 0.000
y -0.453 -31.433 0.000
z 0.000 0.000 -30.138
Traceless
 xyz
x -1.041 -0.453 0.000
y -0.453 -0.450 0.000
z 0.000 0.000 1.492
Polar
3z2-r22.983
x2-y2-0.394
xy-0.453
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.510 -1.159 0.000
y -1.159 9.199 0.000
z 0.000 0.000 7.184


<r2> (average value of r2) Å2
<r2> 116.484
(<r2>)1/2 10.793