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

using model chemistry: HF/aug-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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-194.011138
Energy at 298.15K-194.019935
Nuclear repulsion energy168.622063
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 HF/aug-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' 3272 2979 8.70      
2 A' 3248 2957 69.83      
3 A' 3221 2932 17.20      
4 A' 3195 2909 47.77      
5 A' 3177 2893 14.96      
6 A' 1879 1710 35.67      
7 A' 1625 1479 0.19      
8 A' 1595 1452 2.42      
9 A' 1557 1417 1.08      
10 A' 1384 1260 2.72      
11 A' 1326 1207 0.68      
12 A' 1197 1090 0.87      
13 A' 1030 938 42.31      
14 A' 1025 933 13.57      
15 A' 952 867 0.27      
16 A' 794 723 1.10      
17 A' 712 648 2.66      
18 A' 419 382 7.91      
19 A' 113 103 0.07      
20 A" 3348 3048 14.90      
21 A" 3226 2937 24.72      
22 A" 3175 2890 55.20      
23 A" 1585 1443 3.94      
24 A" 1404 1279 0.05      
25 A" 1356 1235 0.12      
26 A" 1328 1209 0.25      
27 A" 1295 1179 1.00      
28 A" 1125 1024 0.13      
29 A" 983 895 1.07      
30 A" 979 891 1.54      
31 A" 871 793 0.02      
32 A" 693 631 0.07      
33 A" 382 347 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 26733.9 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 24338.5 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 HF/aug-cc-pVTZ
ABC
0.35191 0.15566 0.11692

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.246 -0.383 1.087
C2 0.246 -0.383 -1.087
C3 -0.114 0.611 0.000
C4 0.246 -1.488 0.000
C5 -0.657 1.805 0.000
H6 -0.449 -0.488 1.909
H7 -0.449 -0.488 -1.909
H8 1.236 -0.203 1.490
H9 1.236 -0.203 -1.490
H10 -0.891 2.315 0.917
H11 -0.891 2.315 -0.917
H12 1.082 -2.173 0.000
H13 -0.673 -2.057 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.17471.51671.55042.60501.08153.07771.08402.76712.93193.54762.25522.1983
C22.17471.51671.55042.60503.07771.08152.76711.08403.54762.93192.25522.1983
C31.51671.51672.13001.31172.22822.22822.17012.17012.08442.08443.03042.7267
C41.55041.55042.13003.41502.26432.26432.20262.20264.07344.07341.08071.0816
C52.60502.60501.31173.41502.99122.99123.13733.13731.07481.07484.34193.8628
H61.08153.07772.22822.26432.99123.81781.76003.80493.00544.00462.97112.4813
H73.07771.08152.22822.26432.99123.81783.80491.76004.00463.00542.97112.4813
H81.08402.76712.17012.20263.13731.76003.80492.98063.34554.08182.47463.0505
H92.76711.08402.17012.20263.13733.80491.76002.98064.08183.34552.47463.0505
H102.93193.54762.08444.07341.07483.00544.00463.34554.08181.83464.98704.4724
H113.54762.93192.08444.07341.07484.00463.00544.08183.34551.83464.98704.4724
H122.25522.25523.03041.08074.34192.97112.97112.47462.47464.98704.98701.7591
H132.19832.19832.72671.08163.86282.48132.48133.05053.05054.47244.47241.7591

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 91.601 C1 C3 C5 134.026
C1 C4 C2 89.063 C1 C4 H12 116.864
C1 C4 H13 112.046 C2 C3 C5 134.026
C2 C4 H12 116.864 C2 C4 H13 112.046
C3 C1 C4 87.962 C3 C1 H6 117.107
C3 C1 H8 112.040 C3 C2 C4 87.962
C3 C2 H7 117.107 C3 C2 H9 112.040
C3 C5 H10 121.405 C3 C5 H11 121.405
C4 C1 H6 117.599 C4 C1 H8 112.246
C4 C2 H7 117.599 C4 C2 H9 112.246
H6 C1 H8 108.727 H7 C2 H9 108.727
H10 C5 H11 117.190 H12 C4 H13 108.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.690      
2 C -0.690      
3 C 0.764      
4 C -0.584      
5 C -1.110      
6 H 0.307      
7 H 0.307      
8 H 0.242      
9 H 0.242      
10 H 0.305      
11 H 0.305      
12 H 0.380      
13 H 0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.223 -0.588 0.000 0.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.494 -0.647 0.000
y -0.647 -32.520 0.000
z 0.000 0.000 -31.072
Traceless
 xyz
x -0.698 -0.647 0.000
y -0.647 -0.736 0.000
z 0.000 0.000 1.435
Polar
3z2-r22.869
x2-y20.025
xy-0.647
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.407 -1.340 0.000
y -1.340 10.379 0.000
z 0.000 0.000 8.126


<r2> (average value of r2) Å2
<r2> 115.105
(<r2>)1/2 10.729