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

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-195.221873
Energy at 298.15K-195.230135
Nuclear repulsion energy165.998231
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 BLYP/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' 3042 3034 15.08      
2 A' 3035 3027 61.75      
3 A' 2993 2986 37.90      
4 A' 2984 2977 43.07      
5 A' 2955 2948 11.33      
6 A' 1680 1676 21.90      
7 A' 1476 1472 0.11      
8 A' 1451 1447 1.12      
9 A' 1409 1406 0.66      
10 A' 1225 1222 0.13      
11 A' 1194 1191 0.10      
12 A' 1066 1063 0.29      
13 A' 934 932 0.74      
14 A' 853 851 38.31      
15 A' 848 846 4.66      
16 A' 728 726 1.56      
17 A' 650 649 1.16      
18 A' 368 367 6.60      
19 A' 77 76 0.02      
20 A" 3115 3107 22.20      
21 A" 2996 2988 16.90      
22 A" 2951 2944 67.33      
23 A" 1439 1435 4.09      
24 A" 1241 1238 0.01      
25 A" 1210 1207 0.05      
26 A" 1192 1189 1.16      
27 A" 1154 1151 2.51      
28 A" 1025 1022 0.08      
29 A" 892 890 0.54      
30 A" 876 874 1.90      
31 A" 793 791 0.03      
32 A" 621 619 0.03      
33 A" 347 346 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 24408.0 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 24347.0 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 BLYP/6-311G*
ABC
0.34449 0.15057 0.11260

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.134 -0.429 1.104
C2 0.134 -0.429 -1.104
C3 0.000 0.629 0.000
C4 -0.010 -1.539 0.000
C5 -0.259 1.938 0.000
H6 -0.627 -0.412 1.898
H7 -0.627 -0.412 -1.898
H8 1.126 -0.430 1.585
H9 1.126 -0.430 -1.585
H10 -0.371 2.501 0.930
H11 -0.371 2.501 -0.930
H12 0.753 -2.328 0.000
H13 -1.002 -2.010 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.20891.53501.57262.64151.10023.09801.10212.86622.97883.60312.28242.2389
C22.20891.53501.57262.64153.09801.10022.86621.10213.60312.97882.28242.2389
C31.53501.53502.16771.33502.25392.25392.21332.21332.12392.12393.05102.8230
C41.57261.57262.16773.48612.29252.29252.24362.24364.16194.16191.09801.0982
C52.64152.64151.33503.48613.04343.04343.16803.16801.09321.09324.38464.0180
H61.10023.09802.25392.29253.04343.79691.78153.89953.08074.06873.03012.5101
H73.09801.10022.25392.29253.04343.79693.89951.78154.06873.08073.03012.5101
H81.10212.86622.21332.24363.16801.78153.89953.16913.35594.14212.50073.0888
H92.86621.10212.21332.24363.16803.89951.78153.16914.14213.35592.50073.0888
H102.97883.60312.12394.16191.09323.08074.06873.35594.14211.86035.04514.6499
H113.60312.97882.12394.16191.09324.06873.08074.14213.35591.86035.04514.6499
H122.28242.28243.05101.09804.38463.03013.03012.50072.50075.04515.04511.7841
H132.23892.23892.82301.09824.01802.51012.51013.08883.08884.64994.64991.7841

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 92.030 C1 C3 C5 133.853
C1 C4 C2 89.223 C1 C4 H12 116.308
C1 C4 H13 112.710 C2 C3 C5 133.853
C2 C4 H12 116.308 C2 C4 H13 112.710
C3 C1 C4 88.452 C3 C1 H6 116.619
C3 C1 H8 113.111 C3 C2 C4 88.452
C3 C2 H7 116.619 C3 C2 H9 113.111
C3 C5 H10 121.698 C3 C5 H11 121.698
C4 C1 H6 117.011 C4 C1 H8 112.849
C4 C2 H7 117.011 C4 C2 H9 112.849
H6 C1 H8 107.974 H7 C2 H9 107.974
H10 C5 H11 116.605 H12 C4 H13 108.656
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.433      
2 C -0.433      
3 C 0.145      
4 C -0.389      
5 C -0.458      
6 H 0.201      
7 H 0.201      
8 H 0.204      
9 H 0.204      
10 H 0.183      
11 H 0.183      
12 H 0.194      
13 H 0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.060 -0.508 0.000 0.512
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.741 -0.451 0.000
y -0.451 -32.520 0.000
z 0.000 0.000 -31.356
Traceless
 xyz
x -0.803 -0.451 0.000
y -0.451 -0.472 0.000
z 0.000 0.000 1.275
Polar
3z2-r22.549
x2-y2-0.221
xy-0.451
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 118.518
(<r2>)1/2 10.887