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	-193.873193
Energy at 298.15K	-193.879499
HF Energy	-193.873193
Nuclear repulsion energy	161.085809

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3226	3100	2.57
2	A'	3217	3092	39.59
3	A'	3205	3080	2.81
4	A'	3114	2993	30.30
5	A'	1622	1559	6.37
6	A'	1471	1414	3.11
7	A'	1312	1261	1.06
8	A'	1213	1166	0.98
9	A'	1116	1073	1.86
10	A'	1039	999	2.17
11	A'	972	934	4.28
12	A'	893	858	2.47
13	A'	813	781	0.11
14	A'	747	718	68.70
15	A'	425	408	6.58
16	A"	3211	3086	15.43
17	A"	3187	3064	5.83
18	A"	1322	1271	23.78
19	A"	1224	1177	0.05
20	A"	1090	1047	3.71
21	A"	1047	1006	0.29
22	A"	1044	1004	7.12
23	A"	966	928	3.74
24	A"	910	874	7.96
25	A"	835	802	5.08
26	A"	796	765	31.43
27	A"	460	442	1.05

Atom	x (Å)	y (Å)	z (Å)
C1	-0.263	1.049	0.666
C2	-0.263	1.049	-0.666
C3	-0.263	-0.465	0.758
C4	-0.263	-0.465	-0.758
C5	0.923	-0.998	0.000
H6	-0.200	1.804	1.437
H7	-0.200	1.804	-1.437
H8	-0.867	-1.052	1.435
H9	-0.867	-1.052	-1.435
H10	1.861	-0.448	0.000
H11	1.049	-2.077	0.000

	C1	C2	C3	C4	C5	H6	H7	H8	H9	H10	H11
C1		1.3315	1.5166	2.0778	2.4571	1.0813	2.2350	2.3168	3.0312	2.6826	3.4550
C2	1.3315		2.0778	1.5166	2.4571	2.2350	1.0813	3.0312	2.3168	2.6826	3.4550
C3	1.5166	2.0778		1.5151	1.5048	2.3696	3.1573	1.0802	2.3481	2.2554	2.2123
C4	2.0778	1.5166	1.5151		1.5048	3.1573	2.3696	2.3481	1.0802	2.2554	2.2123
C5	2.4571	2.4571	1.5048	1.5048		3.3429	3.3429	2.2942	2.2942	1.0873	1.0871
H6	1.0813	2.2350	2.3696	3.1573	3.3429		2.8735	2.9329	4.1045	3.3740	4.3232
H7	2.2350	1.0813	3.1573	2.3696	3.3429	2.8735		4.1045	2.9329	3.3740	4.3232
H8	2.3168	3.0312	1.0802	2.3481	2.2942	2.9329	4.1045		2.8692	3.1406	2.6033
H9	3.0312	2.3168	2.3481	1.0802	2.2942	4.1045	2.9329	2.8692		3.1406	2.6033
H10	2.6826	2.6826	2.2554	2.2554	1.0873	3.3740	3.3740	3.1406	3.1406		1.8208
H11	3.4550	3.4550	2.2123	2.2123	1.0871	4.3232	4.3232	2.6033	2.6033	1.8208

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	93.470	C1	C2	H7	135.482
C1	C3	C4	86.530	C1	C3	C5	108.832
C1	C3	H8	125.463	C2	C1	C3	93.470
C2	C1	H6	135.482	C2	C4	C3	86.530
C2	C4	C5	108.832	C2	C4	H9	125.463
C3	C1	H6	130.862	C3	C4	C5	59.773
C3	C4	H9	128.813	C3	C5	C4	60.454
C3	C5	H10	120.085	C3	C5	H11	116.268
C4	C2	H7	130.862	C4	C3	C5	59.773
C4	C3	H8	128.813	C4	C5	H10	120.085
C4	C5	H11	116.268	C5	C3	H8	124.304
C5	C4	H9	124.304	H10	C5	H11	113.727

All results from a given calculation for C₅H₆ (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: HSEh1PBE/cc-pVTZ

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	-0.162
2	C	-0.162
3	C	-0.056
4	C	-0.056
5	C	-0.210
6	H	0.109
7	H	0.109
8	H	0.111
9	H	0.111
10	H	0.106
11	H	0.099

	x	y	z	Total
	0.154	-0.405	0.000	0.433
CHELPG
AIM
ESP

	x	y	z
x	6.475	-0.487	0.000
y	-0.487	8.370	0.000
z	0.000	0.000	7.926

<r²>	86.832
(<r²>)^1/2	9.318

All results from a given calculation for C5H6 (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: HSEh1PBE/cc-pVTZ

States and conformations

All results from a given calculation for C₅H₆ (Bicyclo[2.1.0]pent-2-ene)