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	-307.939847
Energy at 298.15K	-307.944386
HF Energy	-307.939847
Nuclear repulsion energy	297.418702

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3217	3198	8.51
2	A₁	3173	3154	9.25
3	A₁	3149	3131	9.74
4	A₁	1793	1782	451.02
5	A₁	1547	1539	85.07
6	A₁	1461	1452	61.66
7	A₁	1364	1356	68.35
8	A₁	1193	1186	22.17
9	A₁	1029	1023	9.93
10	A₁	1003	997	5.82
11	A₁	908	903	19.50
12	A₁	853	848	20.21
13	A₁	477	474	0.00
14	A₂	884	879	0.00
15	A₂	875	870	0.00
16	A₂	671	667	0.00
17	A₂	573	569	0.00
18	A₂	201	200	0.00
19	B₁	850	845	0.00
20	B₁	735	730	48.77
21	B₁	696	692	51.99
22	B₁	616	612	4.50
23	B₁	417	415	7.10
24	B₁	134	133	5.64
25	B₂	3175	3157	3.27
26	B₂	3166	3148	22.08
27	B₂	3137	3119	3.04
28	B₂	1537	1528	0.82
29	B₂	1301	1293	0.52
30	B₂	1176	1169	1.67
31	B₂	1057	1051	16.73
32	B₂	1046	1040	5.88
33	B₂	885	880	8.82
34	B₂	801	797	1.56
35	B₂	474	471	0.89
36	B₂	140	139	1.73

Atom	y (Å)	z (Å)
C1	0.000	-0.050
C2	0.000	1.314
C3	0.671	2.590
C4	-0.671	2.590
C5	1.178	-0.916
C6	-1.178	-0.916
C7	0.730	-2.219
C8	-0.730	-2.219
H9	1.601	3.167
H10	-1.601	3.167
H11	2.217	-0.567
H12	-2.217	-0.567
H13	1.359	-3.118
H14	-1.359	-3.118

	C1	C2	C3	C4	C5	C6	C7	C8	H9	H10	H11	H12	H13	H14
C1		1.3640	2.7238	2.7238	1.4619	1.4619	2.2882	2.2882	3.5940	3.5940	2.2765	2.2765	3.3556	3.3556
C2	1.3640		1.4415	1.4415	2.5217	2.5217	3.6073	3.6073	2.4494	2.4494	2.9071	2.9071	4.6357	4.6357
C3	2.7238	1.4415		1.3415	3.5421	3.9632	4.8091	5.0084	1.0952	2.3442	3.5147	4.2781	5.7493	6.0582
C4	2.7238	1.4415	1.3415		3.9632	3.5421	5.0084	4.8091	2.3442	1.0952	4.2781	3.5147	6.0582	5.7493
C5	1.4619	2.5217	3.5421	3.9632		2.3560	1.3781	2.3101	4.1051	4.9393	1.0964	3.4132	2.2098	3.3598
C6	1.4619	2.5217	3.9632	3.5421	2.3560		2.3101	1.3781	4.9393	4.1051	3.4132	1.0964	3.3598	2.2098
C7	2.2882	3.6073	4.8091	5.0084	1.3781	2.3101		1.4590	5.4564	5.8690	2.2236	3.3785	1.0978	2.2741
C8	2.2882	3.6073	5.0084	4.8091	2.3101	1.3781	1.4590		5.8690	5.4564	3.3785	2.2236	2.2741	1.0978
H9	3.5940	2.4494	1.0952	2.3442	4.1051	4.9393	5.4564	5.8690		3.2023	3.7843	5.3406	6.2902	6.9478
H10	3.5940	2.4494	2.3442	1.0952	4.9393	4.1051	5.8690	5.4564	3.2023		5.3406	3.7843	6.9478	6.2902
H11	2.2765	2.9071	3.5147	4.2781	1.0964	3.4132	2.2236	3.3785	3.7843	5.3406		4.4345	2.6921	4.3935
H12	2.2765	2.9071	4.2781	3.5147	3.4132	1.0964	3.3785	2.2236	5.3406	3.7843	4.4345		4.3935	2.6921
H13	3.3556	4.6357	5.7493	6.0582	2.2098	3.3598	1.0978	2.2741	6.2902	6.9478	2.6921	4.3935		2.7185
H14	3.3556	4.6357	6.0582	5.7493	3.3598	2.2098	2.2741	1.0978	6.9478	6.2902	4.3935	2.6921	2.7185

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	152.271	C1	C2	C4	152.271
C1	C5	C7	107.318	C1	C5	H11	125.104
C1	C6	C8	107.318	C1	C6	H12	125.104
C2	C1	C5	126.311	C2	C1	C6	126.311
C2	C3	C4	62.271	C2	C3	H9	149.563
C2	C4	C3	62.271	C2	C4	H10	149.563
C3	C2	C4	55.459	C3	C4	H10	148.166
C4	C3	H9	148.166	C5	C1	C6	107.378
C5	C7	C8	108.993	C5	C7	H13	126.003
C6	C8	C7	108.993	C6	C8	H14	126.003
C7	C5	H11	127.578	C7	C8	H14	125.004
C8	C6	H12	127.578	C8	C7	H13	125.004

All results from a given calculation for C₈H₆ (Calicene)

using model chemistry: PBEPBEultrafine/cc-pVDZ

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	-0.032
2	C	0.289
3	C	-0.009
4	C	-0.009
5	C	-0.043
6	C	-0.043
7	C	0.005
8	C	0.005
9	H	0.019
10	H	0.019
11	H	-0.057
12	H	-0.057
13	H	-0.043
14	H	-0.043

<r²>	273.694
(<r²>)^1/2	16.544

All results from a given calculation for C8H6 (Calicene)

using model chemistry: PBEPBEultrafine/cc-pVDZ

States and conformations

All results from a given calculation for C₈H₆ (Calicene)