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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-195.222664
Energy at 298.15K-195.231158
Nuclear repulsion energy168.394675
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 B1B95/6-311G*
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' 3144 3014 9.05      
2 A' 3141 3011 55.98      
3 A' 3109 2980 17.72      
4 A' 3082 2954 48.25      
5 A' 3055 2929 15.06      
6 A' 1773 1699 26.15      
7 A' 1509 1446 0.10      
8 A' 1482 1420 3.24      
9 A' 1442 1382 1.22      
10 A' 1264 1212 0.18      
11 A' 1231 1180 0.14      
12 A' 1095 1050 0.27      
13 A' 993 952 0.57      
14 A' 902 865 0.68      
15 A' 894 857 46.51      
16 A' 755 724 2.22      
17 A' 663 636 2.18      
18 A' 384 368 7.46      
19 A' 118 113 0.12      
20 A" 3227 3094 16.79      
21 A" 3113 2984 25.43      
22 A" 3051 2925 48.14      
23 A" 1469 1408 5.36      
24 A" 1291 1237 0.00      
25 A" 1251 1199 0.16      
26 A" 1222 1171 1.50      
27 A" 1194 1145 2.44      
28 A" 1051 1007 0.20      
29 A" 947 908 1.46      
30 A" 919 881 0.82      
31 A" 814 780 0.14      
32 A" 646 619 0.11      
33 A" 355 340 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 25291.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 24244.1 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 B1B95/6-311G*
ABC
0.34913 0.15554 0.11749

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.286 -0.366 1.083
C2 0.286 -0.366 -1.083
C3 -0.126 0.606 0.000
C4 0.286 -1.472 0.000
C5 -0.769 1.762 0.000
H6 -0.378 -0.483 1.940
H7 -0.378 -0.483 -1.940
H8 1.296 -0.162 1.452
H9 1.296 -0.162 -1.452
H10 -1.046 2.257 0.925
H11 -1.046 2.257 -0.925
H12 1.121 -2.173 0.000
H13 -0.648 -2.034 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.16531.51251.54742.61061.09113.09701.09412.73572.94603.56152.26552.1968
C22.16531.51251.54742.61063.09701.09112.73571.09413.56152.94602.26552.1968
C31.51251.51252.11851.32272.23912.23912.17202.17202.10382.10383.04592.6913
C41.54741.54742.11853.40162.27672.27672.20072.20074.06594.06591.09001.0903
C52.61062.61061.32273.40162.99252.99253.17353.17351.08481.08484.36523.7977
H61.09113.09702.23912.27672.99253.87991.77323.79602.99684.01972.97782.4983
H73.09701.09112.23912.27672.99253.87993.79601.77324.01972.99682.97782.4983
H81.09412.73572.17202.20073.17351.77323.79602.90353.40714.12062.48663.0645
H92.73571.09412.17202.20073.17353.79601.77322.90354.12063.40712.48663.0645
H102.94603.56152.10384.06591.08482.99684.01973.40714.12061.84985.01714.4071
H113.56152.94602.10384.06591.08484.01972.99684.12063.40711.84985.01714.4071
H122.26552.26553.04591.09004.36522.97782.97782.48662.48665.01715.01711.7744
H132.19682.19682.69131.09033.79772.49832.49833.06453.06454.40714.40711.7744

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 91.419 C1 C3 C5 133.970
C1 C4 C2 88.798 C1 C4 H12 117.353
C1 C4 H13 111.613 C2 C3 C5 133.970
C2 C4 H12 117.353 C2 C4 H13 111.613
C3 C1 C4 87.625 C3 C1 H6 117.724
C3 C1 H8 111.875 C3 C2 C4 87.625
C3 C2 H7 117.724 C3 C2 H9 111.875
C3 C5 H10 121.504 C3 C5 H11 121.504
C4 C1 H6 118.249 C4 C1 H8 111.699
C4 C2 H7 118.249 C4 C2 H9 111.699
H6 C1 H8 108.482 H7 C2 H9 108.482
H10 C5 H11 116.993 H12 C4 H13 108.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.474      
2 C -0.474      
3 C 0.115      
4 C -0.433      
5 C -0.503      
6 H 0.224      
7 H 0.224      
8 H 0.233      
9 H 0.233      
10 H 0.206      
11 H 0.206      
12 H 0.215      
13 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.200 -0.501 0.000 0.539
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.852 -0.725 0.000
y -0.725 -32.232 0.000
z 0.000 0.000 -30.625
Traceless
 xyz
x -0.423 -0.725 0.000
y -0.725 -0.994 0.000
z 0.000 0.000 1.417
Polar
3z2-r22.833
x2-y20.381
xy-0.725
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.769 -1.763 0.000
y -1.763 9.439 0.000
z 0.000 0.000 7.745


<r2> (average value of r2) Å2
<r2> 114.677
(<r2>)1/2 10.709