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

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-195.292239
Energy at 298.15K-195.300693
Nuclear repulsion energy168.082664
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 B3PW91/cc-pVTZ
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' 3135 3015 6.82      
2 A' 3128 3008 38.27      
3 A' 3094 2976 13.44      
4 A' 3072 2954 40.52      
5 A' 3046 2929 8.74      
6 A' 1753 1685 29.91      
7 A' 1492 1435 0.13      
8 A' 1464 1407 1.96      
9 A' 1433 1378 1.31      
10 A' 1255 1207 0.01      
11 A' 1220 1173 0.28      
12 A' 1090 1048 0.47      
13 A' 981 943 0.68      
14 A' 907 872 43.77      
15 A' 889 855 0.58      
16 A' 747 718 1.96      
17 A' 664 639 1.88      
18 A' 383 368 6.92      
19 A' 94 90 0.06      
20 A" 3217 3094 10.52      
21 A" 3098 2979 16.44      
22 A" 3042 2925 42.56      
23 A" 1449 1394 5.93      
24 A" 1282 1233 0.10      
25 A" 1237 1189 0.15      
26 A" 1220 1173 0.94      
27 A" 1190 1144 2.06      
28 A" 1039 999 0.12      
29 A" 937 901 0.86      
30 A" 910 875 1.47      
31 A" 807 776 0.06      
32 A" 635 611 0.06      
33 A" 356 342 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 25132.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 24167.3 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 B3PW91/cc-pVTZ
ABC
0.35081 0.15470 0.11622

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.168 -0.422 1.088
C2 0.168 -0.422 -1.088
C3 0.000 0.619 0.000
C4 -0.020 -1.512 0.000
C5 -0.319 1.902 0.000
H6 -0.545 -0.399 1.913
H7 -0.545 -0.399 -1.913
H8 1.178 -0.424 1.506
H9 1.178 -0.424 -1.506
H10 -0.457 2.450 0.925
H11 -0.457 2.450 -0.925
H12 0.693 -2.335 0.000
H13 -1.029 -1.921 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.17531.51471.55132.61171.09073.08411.09332.78352.94353.56222.26292.2057
C22.17531.51471.55132.61173.08411.09072.78351.09333.56222.94352.26292.2057
C31.51471.51472.13091.32232.23452.23452.17802.17802.10182.10183.03452.7407
C41.55131.55132.13093.42712.27422.27422.21052.21054.09194.09191.08921.0897
C52.61172.61171.32233.42713.00123.00123.14973.14971.08401.08404.35683.8886
H61.09073.08412.23452.27423.00123.82561.77073.82863.01714.02262.98992.4917
H73.08411.09072.23452.27423.00123.82563.82861.77074.02263.01712.98992.4917
H81.09332.78352.17802.21053.14971.77073.82863.01213.35724.10422.48133.0632
H92.78351.09332.17802.21053.14973.82861.77073.01214.10423.35722.48133.0632
H102.94353.56222.10184.09191.08403.01714.02263.35724.10421.85045.00794.5044
H113.56222.94352.10184.09191.08404.02263.01714.10423.35721.85045.00794.5044
H122.26292.26293.03451.08924.35682.98992.98992.48132.48135.00795.00791.7719
H132.20572.20572.74071.08973.88862.49172.49173.06323.06324.50444.50441.7719

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 91.793 C1 C3 C5 133.909
C1 C4 C2 89.035 C1 C4 H12 116.881
C1 C4 H13 112.085 C2 C3 C5 133.909
C2 C4 H12 116.881 C2 C4 H13 112.085
C3 C1 C4 88.047 C3 C1 H6 117.173
C3 C1 H8 112.248 C3 C2 C4 88.047
C3 C2 H7 117.173 C3 C2 H9 112.248
C3 C5 H10 121.410 C3 C5 H11 121.410
C4 C1 H6 117.752 C4 C1 H8 112.251
C4 C2 H7 117.752 C4 C2 H9 112.251
H6 C1 H8 108.333 H7 C2 H9 108.333
H10 C5 H11 117.180 H12 C4 H13 108.824
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.152 0.000    
2 C -0.152 0.000    
3 C 0.021 0.000    
4 C -0.148 0.000    
5 C -0.280 0.000    
6 H 0.083 0.000    
7 H 0.083 0.000    
8 H 0.086 0.000    
9 H 0.086 0.000    
10 H 0.104 0.000    
11 H 0.104 0.000    
12 H 0.081 0.000    
13 H 0.085 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.099 -0.569 0.000 0.578
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.113 -0.551 0.000
y -0.551 -31.922 0.000
z 0.000 0.000 -30.654
Traceless
 xyz
x -0.825 -0.551 0.000
y -0.551 -0.539 0.000
z 0.000 0.000 1.364
Polar
3z2-r22.728
x2-y2-0.191
xy-0.551
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> 115.441
(<r2>)1/2 10.744