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

using model chemistry: BLYP/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-195.179496
Energy at 298.15K-195.188475
Nuclear repulsion energy173.916696
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/aug-cc-pVDZ
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' 3119 3113 28.27      
2 A' 3096 3090 12.38      
3 A' 3034 3029 54.20      
4 A' 3014 3008 30.48      
5 A' 2965 2959 79.29      
6 A' 1455 1453 0.99      
7 A' 1433 1431 1.81      
8 A' 1311 1308 1.70      
9 A' 1185 1183 1.15      
10 A' 1167 1165 0.00      
11 A' 1086 1084 0.81      
12 A' 987 985 0.14      
13 A' 944 943 3.11      
14 A' 893 892 5.43      
15 A' 860 859 2.61      
16 A' 757 756 0.85      
17 A' 727 725 6.63      
18 A' 401 400 0.38      
19 A" 3089 3083 30.70      
20 A" 3017 3011 2.12      
21 A" 2957 2951 57.39      
22 A" 1433 1430 0.32      
23 A" 1250 1248 4.90      
24 A" 1206 1204 1.63      
25 A" 1177 1175 0.02      
26 A" 1079 1077 0.03      
27 A" 1020 1018 3.07      
28 A" 1004 1002 0.61      
29 A" 950 949 4.01      
30 A" 896 894 0.07      
31 A" 757 756 13.23      
32 A" 660 659 0.04      
33 A" 256 256 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 24592.6 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 24545.9 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/aug-cc-pVDZ
ABC
0.29899 0.19891 0.15535

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.246 -0.540 0.777
C2 -0.246 -0.540 -0.777
C3 -0.246 1.007 0.790
C4 -0.246 1.007 -0.790
C5 0.948 -1.068 0.000
H6 -0.812 -1.181 1.463
H7 -0.812 -1.181 -1.463
H8 0.618 1.486 1.291
H9 0.618 1.486 -1.291
H10 -1.176 1.433 1.204
H11 -1.176 1.433 -1.204
H12 1.900 -0.515 0.000
H13 1.061 -2.159 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55391.54762.20251.51921.09642.39772.26183.02102.22292.94702.28232.2210
C21.55392.20251.54761.51922.39771.09643.02102.26182.94702.22292.28232.2210
C31.54762.20251.58062.52132.35863.19181.10712.30341.10342.24172.74703.5156
C42.20251.54761.58062.52133.19182.35862.30341.10712.24171.10342.74703.5156
C51.51921.51922.52132.52132.29172.29172.88052.88053.49533.49531.10081.0971
H61.09642.39772.35863.19182.29172.92593.03144.09172.65223.75273.15282.5700
H72.39771.09643.19182.35862.29172.92594.09173.03143.75272.65223.15282.5700
H82.26183.02101.10712.30342.88053.03144.09172.58121.79663.07342.70423.8923
H93.02102.26182.30341.10712.88054.09173.03142.58123.07341.79662.70423.8923
H102.22292.94701.10342.24173.49532.65223.75271.79663.07342.40893.83484.3998
H112.94702.22292.24171.10343.49533.75272.65223.07341.79662.40893.83484.3998
H122.28232.28232.74702.74701.10083.15283.15282.70422.70423.83483.83481.8460
H132.22102.22103.51563.51561.09712.57002.57003.89233.89234.39984.39981.8460

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 90.494 C1 C2 C5 59.241
C1 C2 H7 128.730 C1 C3 C4 89.506
C1 C3 H8 115.868 C1 C3 H10 112.903
C1 C5 C2 61.517 C1 C5 H12 120.335
C1 C5 H13 115.235 C2 C1 C3 90.494
C2 C1 C5 59.241 C2 C1 H6 128.730
C2 C4 C3 89.506 C2 C4 H9 115.868
C2 C4 H11 112.903 C2 C5 H12 120.335
C2 C5 H13 115.235 C3 C1 C5 110.596
C3 C1 H6 125.398 C3 C4 H9 116.863
C3 C4 H11 112.046 C4 C2 C5 110.596
C4 C2 H7 125.398 C4 C3 H8 116.863
C4 C3 H10 112.046 C5 C1 H6 121.520
C5 C2 H7 121.520 H8 C3 H10 108.727
H9 C4 H11 108.727 H12 C5 H13 114.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.966      
2 C 0.966      
3 C 1.209      
4 C 1.209      
5 C 1.324      
6 H -0.833      
7 H -0.833      
8 H -0.643      
9 H -0.643      
10 H -0.616      
11 H -0.616      
12 H -0.747      
13 H -0.745      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.270 -0.085 0.000 0.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.260 0.155 0.000
y 0.155 -31.936 0.000
z 0.000 0.000 -33.379
Traceless
 xyz
x 0.398 0.155 0.000
y 0.155 0.884 0.000
z 0.000 0.000 -1.282
Polar
3z2-r2-2.563
x2-y2-0.324
xy0.155
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.443 -0.454 0.000
y -0.454 9.412 0.000
z 0.000 0.000 8.931


<r2> (average value of r2) Å2
<r2> 100.758
(<r2>)1/2 10.038