CCCBDB calculation results Page

Home
- All data for one species
- Geometry
  - Experimental
  - Calculated
  - Comparisons
  - Bad Calculations
    - Bad moment of inertia
  - Tutorials and Explanations
    - Angle formulas
- Vibrations
  - Experimental
    - Vibrational frequencies
  - Calculated
    - Frequencies
  - Scale factors
- Reactions
- Entropies
- Ions
  - List Ions
  - Energy
    - Calculated Ionization Energy
    - Compare Ionzation energy
  - Electron Affinity
    - Calculated Electron affinity
    - Compare Electron affinity
  - Proton Affinity
    - Calculated Proton affinity
    - Compare Proton affinity
  - Ionization changes point group
Experimental
Calculated
- Energy
  - Optimized
  - Reaction
    - Reaction Energy 0K
    - Reaction Energy 298K
  - Internal Rotation
  - Orbital
  - Nuclear repulsion energy
  - Correlation
    - Full vs Frozen core energies
    - Partial correlation energies
  - Ion
  - Excited State
  - Basis Set Extrapolation
    - BSE energy
    - BSE Bond lengths
- Geometry
  - Calculated geometry
    - AIM bond orders
    - One type of bond
  - Rotation
  - Point group
  - State symmetry
  - <r2>
    - Sorted by r2
  - Z-matrix
  - Bad Calculations
- Vibrations
  - Frequencies
    - Animated vibrations
    - Anharmonic
  - Zero point energy (ZPE)
  - Scale Factors
  - Bad Calculations
- Electrostatics
  - Charges
  - Dipole
  - Quadrupole
  - Polarizability
  - Spin
    - Spin density
- Entropy and Heat Capacity
- Reaction
  - Reaction Energy 0K
  - Reaction Energy 298K
  - Isodesmic reactions
  - Transition State
- Lookup by property
  - By frequency
Comparisons
- Geometry
- Vibrations
- Energy
  - Reaction
  - Single point vs optimized
  - DFT grid size on energy
  - Semiempirical enthalpy
  - Internal rotation
  - Similar molecules
- Entropy
- Electrostatics
- Ion
Resources
- Info on Results
  - Calculations Done
  - Basis functions used
  - I/O files
- Glossary
- Conversion Forms
- Links
  - NIST Links
  - External links
- Thermochemistry
- Tutorials
  - Vibrations
    - Why scale vibrations
    - Zero-point energies
  - Entropy
    - Methyl rotor entropy
    - Entropy and conformations
  - Energy
  - Electrostatics
    - Dipole parts by point group
    - Quadrupoles
  - Geometry
    - Angle formulas
  - Cost
    - Cost Comparison
    - Timings Comparison
- Bad Calculations
  - Geometry
  - Vibrations
  - Low excited states
  - Oddities
    - NaCN Is not linear
FAQ Help
- Units
  - Choose Units
  - Explanations
- Credits
- Just show me
  - Show me a calculated geometry
- Summary
- Using
- List
  - Recent molecules
    - Choose a few
  - Molecules
  - Geometry
  - Vibrations
    - Big anharmonicity
  - Energy
    - Enthalpy at 0 Kelvin
  - Similar molecules
  - Ions, Dipoles, etc.
- Index of CCCBDB
- Feedback
  - Error form
  - Wants

	hartrees
Energy at 0K	-195.201880
Energy at 298.15K	-195.210887
Nuclear repulsion energy	174.406204

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3101	3094	42.69
2	A'	3081	3073	13.90
3	A'	3022	3014	68.72
4	A'	3003	2995	35.78
5	A'	2958	2951	83.92
6	A'	1483	1480	1.01
7	A'	1457	1454	2.52
8	A'	1322	1319	0.97
9	A'	1203	1200	1.60
10	A'	1185	1182	0.07
11	A'	1099	1096	0.70
12	A'	1000	998	0.08
13	A'	950	948	2.97
14	A'	898	896	5.99
15	A'	869	867	3.71
16	A'	767	765	1.50
17	A'	732	730	6.28
18	A'	403	402	0.58
19	A"	3074	3066	39.81
20	A"	3003	2995	3.01
21	A"	2949	2942	64.03
22	A"	1461	1457	0.31
23	A"	1265	1262	5.73
24	A"	1229	1226	1.49
25	A"	1196	1193	0.12
26	A"	1096	1093	0.07
27	A"	1039	1036	4.92
28	A"	1017	1014	0.31
29	A"	959	957	4.31
30	A"	910	908	0.04
31	A"	765	763	14.00
32	A"	669	668	0.05
33	A"	263	263	0.48

Atom	x (Å)	y (Å)	z (Å)
C1	-0.246	-0.540	0.775
C2	-0.246	-0.540	-0.775
C3	-0.246	1.005	0.789
C4	-0.246	1.005	-0.789
C5	0.945	-1.064	0.000
H6	-0.811	-1.179	1.455
H7	-0.811	-1.179	-1.455
H8	0.614	1.481	1.289
H9	0.614	1.481	-1.289
H10	-1.169	1.433	1.202
H11	-1.169	1.433	-1.202
H12	1.893	-0.514	0.000
H13	1.063	-2.149	0.000

	C1	C2	C3	C4	C5	H6	H7	H8	H9	H10	H11	H12	H13
C1		1.5496	1.5449	2.1983	1.5141	1.0914	2.3874	2.2553	3.0135	2.2197	2.9417	2.2749	2.2143
C2	1.5496		2.1983	1.5449	1.5141	2.3874	1.0914	3.0135	2.2553	2.9417	2.2197	2.2749	2.2143
C3	1.5449	2.1983		1.5781	2.5139	2.3524	3.1820	1.1021	2.2984	1.0984	2.2364	2.7393	3.5049
C4	2.1983	1.5449	1.5781		2.5139	3.1820	2.3524	2.2984	1.1021	2.2364	1.0984	2.7393	3.5049
C5	1.5141	1.5141	2.5139	2.5139		2.2837	2.2837	2.8717	2.8717	3.4853	3.4853	1.0959	1.0920
H6	1.0914	2.3874	2.3524	3.1820	2.2837		2.9095	3.0224	4.0786	2.6484	3.7431	3.1423	2.5635
H7	2.3874	1.0914	3.1820	2.3524	2.2837	2.9095		4.0786	3.0224	3.7431	2.6484	3.1423	2.5635
H8	2.2553	3.0135	1.1021	2.2984	2.8717	3.0224	4.0786		2.5777	1.7852	3.0636	2.6978	3.8784
H9	3.0135	2.2553	2.2984	1.1021	2.8717	4.0786	3.0224	2.5777		3.0636	1.7852	2.6978	3.8784
H10	2.2197	2.9417	1.0984	2.2364	3.4853	2.6484	3.7431	1.7852	3.0636		2.4048	3.8225	4.3885
H11	2.9417	2.2197	2.2364	1.0984	3.4853	3.7431	2.6484	3.0636	1.7852	2.4048		3.8225	4.3885
H12	2.2749	2.2749	2.7393	2.7393	1.0959	3.1423	3.1423	2.6978	2.6978	3.8225	3.8225		1.8339
H13	2.2143	2.2143	3.5049	3.5049	1.0920	2.5635	2.5635	3.8784	3.8784	4.3885	4.3885	1.8339

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	90.528	C1	C2	C5	59.222
C1	C2	H7	128.535	C1	C3	C4	89.472
C1	C3	H8	115.858	C1	C3	H10	113.142
C1	C5	C2	61.557	C1	C5	H12	120.447
C1	C5	H13	115.397	C2	C1	C3	90.528
C2	C1	C5	59.222	C2	C1	H6	128.535
C2	C4	C3	89.472	C2	C4	H9	115.858
C2	C4	H11	113.142	C2	C5	H12	120.447
C2	C5	H13	115.397	C3	C1	C5	110.523
C3	C1	H6	125.449	C3	C4	H9	116.970
C3	C4	H11	112.106	C4	C2	C5	110.523
C4	C2	H7	125.449	C4	C3	H8	116.970
C4	C3	H10	112.106	C5	C1	H6	121.596
C5	C2	H7	121.596	H8	C3	H10	108.442
H9	C4	H11	108.442	H12	C5	H13	113.908

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

using model chemistry: BLYP/6-311G*

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
	Home All data for one species Geometry Experimental Experimental Geometries Same bond/angle many molecules Internal Coordinates by type Bond angles Calculated Calculated geometry Rotational constant Moments of inertia Products of moments of inertia BSE Bond lengths Show me a calculated geometry Comparisons Bonds, angles Rotational Constants Products of moments of inertia Point group Bad Calculations Bad moment of inertia Tutorials and Explanations Angle formulas Vibrations Experimental Vibrational frequencies Calculated Frequencies Scale factors Reactions Entropies Ions List Ions Energy Calculated Ionization Energy Compare Ionzation energy Electron Affinity Calculated Electron affinity Compare Electron affinity Proton Affinity Calculated Proton affinity Compare Proton affinity Ionization changes point group Experimental One molecule all properties One property a few molecules Enthalpy of formation Entropy Integrated Heat Capacity Heat Capacity Rotational Constants Vibrational Frequencies Dipole moment Ionization Energy Polarizability Quadrupole Point Groups Geometry Experimental Geometries Internal Coordinates by type Bond angles Rotational Constants Point Groups Diatomic bond lengths Vibrations Vibrational frequencies Diatomic Triatomics Energy Atomization Energy Internal Rotation Electrostatics Dipole Quadrupole Polarizability Reference Data Reference states Spin Splittings Molecules with good enthalpy Enthalpy at 0 Kelvin Calculated Energy Optimized Energy Energy 298K Minimum conformation Hydrogen bonds H bond with counterpoise Reaction Reaction Energy 0K Reaction Energy 298K Internal Rotation Barriers to internal rotation Rotational barrier and dipole Rotational Barrier 2 molecules Orbital HOMO LUMO gap HOMO Orbital Energies Nuclear repulsion energy Correlation Full vs Frozen core energies Partial correlation energies Ion Calculated Ionization Energy Vertical ionization Energy Calculated Electron affinity Calculated Proton affinity Atom charge differences Excited State Singlet triplet gap Electronic state Transition state Basis Set Extrapolation BSE energy BSE Bond lengths Geometry Calculated geometry AIM bond orders One type of bond Rotation Rotational constant Products of moments of inertia Moments of inertia Inertial defects Second moments Point group State symmetry <r2> Sorted by r2 Z-matrix Bad Calculations Bad moment of inertia Bad Calculated Bond Lengths Bad point group Worst molecules Vibrations Frequencies Animated vibrations Anharmonic Zero point energy (ZPE) Scale Factors Scale factors Scale factor uncertainty Calculate a scale factor Why scale vibrations Set scaling factors Bad Calculations Bad Vib. HF vs MP2 Bad vib. Calc. vs exp. Big anharmonicity Electrostatics Charges Mulliken CHELP Aim ESP Dipole Dipole Dipole angle Dipole calculation types Quadrupole Polarizability Spin Spin density Entropy and Heat Capacity Entropy Reaction entropy Heat Capacity Reaction Reaction Energy 0K Reaction Energy 298K Isodesmic reactions Transition State Transition state Transition state frequencies Transition state geometries IRC Lookup by property By frequency Comparisons Geometry Bonds, angles Bond, angle, or dihedral DFT grid size on point group DFT grid on bond length Core correlation - bond length Same bond/angle many molecules Isoelectronic diatomics Isoelectronic triatomic angles Average bond lengths Rotation Rotational Constants Products of moments of inertia Point group Vibrations Vibrations 2 calculations Frequency differences One frequency Zero point energy Intensity Intensity for one mode Vibrational intensities Reduced mass comparison Anharmonic Triatomic Scale factors Energy Reaction Reaction Energy 0K Reaction Energy 298K Atomization 0K Atomization 298K Single point vs optimized DFT grid size on energy Semiempirical enthalpy Internal rotation Similar molecules Conformation Sets of isomers Sets of tautomers Isomers Entropy Entropy Heat capacity Entropy of several molecules Integrated heat capacity Reaction entropy Electrostatics Dipole Polarizability Several molecules Quadrupole Ion Compare Ionzation energy Koopman ionization energy Koopman IE for a few molecules Compare Electron affinity Compare Proton affinity Protonation Site Resources Info on Results Calculations Done Method and basis set List molecules One molecule Multiple conformers, states Multiple conformers, states Basis functions used I/O files Input/output files MOL file Z-matrix wfn files Glossary Conversion Forms B to I, I to B Angle formulas Integrated heat Capacity Calculating Enthalpy Links NIST Links NIST webbook bibliographic data CCCBDB Experimental data External links Basis Set Exchange Computational Chemistry List Thermochemistry in Gaussian Minnesota Database Collection Benchmark Energy and Geometry Point Groups Thermochemistry Thermochemistry Molecules with good enthalpy A → B + C Reference states Tutorials Vibrations Why scale vibrations Zero-point energies Entropy Methyl rotor entropy Entropy and conformations Energy Getting enthalpy of formation Vertical vs adiabatic IE Thermo from calculations Electrostatics Dipole parts by point group Quadrupoles Geometry Angle formulas Cost Cost Comparison Timings Comparison Bad Calculations Geometry Bad moment of inertia Bad Calculated Bond Lengths Bad point group Worst molecules Vibrations Bad vib. Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
You are here: Calculated > Energy > Optimized > Energy

Number	Element	Mulliken
1	C	-0.167
2	C	-0.167
3	C	-0.385
4	C	-0.385
5	C	-0.409
6	H	0.178
7	H	0.178
8	H	0.187
9	H	0.187
10	H	0.197
11	H	0.197
12	H	0.186
13	H	0.202

	x	y	z	Total
	-0.286	-0.100	0.000	0.303
CHELPG
AIM
ESP

<r²>	100.091
(<r²>)^1/2	10.005

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

using model chemistry: BLYP/6-311G*

States and conformations

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