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All results from a given calculation for C5H8 (Bicyclo[2.1.0]pentane)

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-195.232744
Energy at 298.15K-195.241772
Nuclear repulsion energy174.816445
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/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' 3110 3101 30.78      
2 A' 3092 3083 9.21      
3 A' 3026 3017 54.42      
4 A' 3014 3005 28.24      
5 A' 2964 2955 74.48      
6 A' 1471 1467 0.77      
7 A' 1448 1444 1.44      
8 A' 1317 1313 1.61      
9 A' 1197 1193 1.48      
10 A' 1180 1176 0.06      
11 A' 1094 1091 0.75      
12 A' 997 994 0.01      
13 A' 946 943 3.26      
14 A' 898 896 6.16      
15 A' 869 866 1.50      
16 A' 764 761 1.35      
17 A' 734 732 6.08      
18 A' 405 404 0.45      
19 A" 3085 3076 30.99      
20 A" 3007 2998 2.98      
21 A" 2956 2947 55.15      
22 A" 1450 1445 0.16      
23 A" 1260 1256 4.74      
24 A" 1231 1227 1.02      
25 A" 1190 1186 0.02      
26 A" 1092 1089 0.03      
27 A" 1043 1040 3.22      
28 A" 1023 1020 1.24      
29 A" 957 955 3.75      
30 A" 907 904 0.01      
31 A" 762 760 12.47      
32 A" 667 665 0.01      
33 A" 264 263 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 24709.1 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 24635.0 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/cc-pVTZ
ABC
0.30200 0.20081 0.15680

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.245 -0.539 0.772
C2 -0.245 -0.539 -0.772
C3 -0.245 1.003 0.788
C4 -0.245 1.003 -0.788
C5 0.944 -1.062 0.000
H6 -0.804 -1.175 1.454
H7 -0.804 -1.175 -1.454
H8 0.611 1.478 1.286
H9 0.611 1.478 -1.286
H10 -1.168 1.428 1.197
H11 -1.168 1.428 -1.197
H12 1.887 -0.511 0.000
H13 1.061 -2.144 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54381.54212.19351.51151.08712.38152.25073.00602.21372.93212.26772.2085
C21.54382.19351.54211.51152.38151.08713.00602.25072.93212.21372.26772.2085
C31.54212.19351.57622.51012.34523.17551.09832.29341.09472.23002.73103.4972
C42.19351.54211.57622.51013.17552.34522.29341.09832.23001.09472.73103.4972
C51.51151.51152.51012.51012.27652.27652.86652.86653.47763.47761.09181.0882
H61.08712.38152.34523.17552.27652.90813.01154.06792.64113.73353.12952.5552
H72.38151.08713.17552.34522.27652.90814.06793.01153.73352.64113.12952.5552
H82.25073.00601.09832.29342.86653.01154.06792.57161.78123.05462.69013.8697
H93.00602.25072.29341.09832.86654.06793.01152.57163.05461.78122.69013.8697
H102.21372.93211.09472.23003.47762.64113.73351.78123.05462.39453.81064.3770
H112.93212.21372.23001.09473.47763.73352.64113.05461.78122.39453.81064.3770
H122.26772.26772.73102.73101.09183.12953.12952.69012.69013.81063.81061.8302
H132.20852.20853.49723.49721.08822.55522.55523.86973.86974.37704.37701.8302

picture of Bicyclo[2.1.0]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.602 C1 C2 C5 59.289
C1 C2 H7 128.864 C1 C3 C4 89.398
C1 C3 H8 115.930 C1 C3 H10 113.088
C1 C5 C2 61.421 C1 C5 H12 120.307
C1 C5 H13 115.361 C2 C1 C3 90.602
C2 C1 C5 59.289 C2 C1 H6 128.864
C2 C4 C3 89.398 C2 C4 H9 115.930
C2 C4 H11 113.088 C2 C5 H12 120.307
C2 C5 H13 115.361 C3 C1 C5 110.572
C3 C1 H6 125.353 C3 C4 H9 116.944
C3 C4 H11 111.946 C4 C2 C5 110.572
C4 C2 H7 125.353 C4 C3 H8 116.944
C4 C3 H10 111.946 C5 C1 H6 121.477
C5 C2 H7 121.477 H8 C3 H10 108.624
H9 C4 H11 108.624 H12 C5 H13 114.180
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.057      
2 C -0.057      
3 C -0.143      
4 C -0.143      
5 C -0.215      
6 H 0.088      
7 H 0.088      
8 H 0.065      
9 H 0.065      
10 H 0.073      
11 H 0.073      
12 H 0.079      
13 H 0.083      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.254 -0.085 0.000 0.268
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.984 0.145 0.000
y 0.145 -31.607 0.000
z 0.000 0.000 -33.051
Traceless
 xyz
x 0.345 0.145 0.000
y 0.145 0.910 0.000
z 0.000 0.000 -1.255
Polar
3z2-r2-2.510
x2-y2-0.377
xy0.145
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> 99.764
(<r2>)1/2 9.988