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	-307.410314
Energy at 298.15K	-307.414915
HF Energy	-306.321474
Nuclear repulsion energy	297.468296

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3329	3226	15.09
2	A₁	3266	3165	11.06
3	A₁	3242	3143	3.77
4	A₁	1833	1776	636.58
5	A₁	1541	1493	55.03
6	A₁	1473	1428	45.61
7	A₁	1393	1350	85.59
8	A₁	1211	1174	37.75
9	A₁	1062	1030	17.86
10	A₁	1031	1000	4.98
11	A₁	943	914	11.69
12	A₁	875	848	35.27
13	A₁	483	468	0.18
14	A₂	855	828	0.00
15	A₂	847	821	0.00
16	A₂	665	644	0.00
17	A₂	570	552	0.00
18	A₂	205	198	0.00
19	B₁	844	818	0.23
20	B₁	723	700	114.33
21	B₁	667	646	36.11
22	B₁	613	594	8.18
23	B₁	417	404	8.54
24	B₁	135	130	7.61
25	B₂	3291	3190	8.07
26	B₂	3258	3157	17.45
27	B₂	3233	3134	0.99
28	B₂	1533	1486	3.24
29	B₂	1345	1303	0.41
30	B₂	1210	1173	1.42
31	B₂	1107	1073	8.06
32	B₂	1074	1041	10.74
33	B₂	931	902	10.09
34	B₂	819	794	1.49
35	B₂	489	474	0.82
36	B₂	141	137	1.59

Atom	y (Å)	z (Å)
C1	0.000	-0.052
C2	0.000	1.313
C3	0.675	2.586
C4	-0.675	2.586
C5	1.179	-0.910
C6	-1.179	-0.910
C7	0.728	-2.221
C8	-0.728	-2.221
H9	1.598	3.160
H10	-1.598	3.160
H11	2.213	-0.564
H12	-2.213	-0.564
H13	1.357	-3.113
H14	-1.357	-3.113

	C1	C2	C3	C4	C5	C6	C7	C8	H9	H10	H11	H12	H13	H14
C1		1.3645	2.7231	2.7231	1.4580	1.4580	2.2879	2.2879	3.5879	3.5879	2.2715	2.2715	3.3484	3.3484
C2	1.3645		1.4415	1.4415	2.5158	2.5158	3.6077	3.6077	2.4430	2.4430	2.9014	2.9014	4.6290	4.6290
C3	2.7231	1.4415		1.3507	3.5321	3.9573	4.8071	5.0076	1.0870	2.3450	3.5050	4.2736	5.7396	6.0506
C4	2.7231	1.4415	1.3507		3.9573	3.5321	5.0076	4.8071	2.3450	1.0870	4.2736	3.5050	6.0506	5.7396
C5	1.4580	2.5158	3.5321	3.9573		2.3576	1.3859	2.3142	4.0918	4.9274	1.0908	3.4095	2.2101	3.3592
C6	1.4580	2.5158	3.9573	3.5321	2.3576		2.3142	1.3859	4.9274	4.0918	3.4095	1.0908	3.3592	2.2101
C7	2.2879	3.6077	4.8071	5.0076	1.3859	2.3142		1.4570	5.4509	5.8625	2.2249	3.3763	1.0915	2.2686
C8	2.2879	3.6077	5.0076	4.8071	2.3142	1.3859	1.4570		5.8625	5.4509	3.3763	2.2249	2.2686	1.0915
H9	3.5879	2.4430	1.0870	2.3450	4.0918	4.9274	5.4509	5.8625		3.1966	3.7743	5.3286	6.2778	6.9346
H10	3.5879	2.4430	2.3450	1.0870	4.9274	4.0918	5.8625	5.4509	3.1966		5.3286	3.7743	6.9346	6.2778
H11	2.2715	2.9014	3.5050	4.2736	1.0908	3.4095	2.2249	3.3763	3.7743	5.3286		4.4263	2.6891	4.3871
H12	2.2715	2.9014	4.2736	3.5050	3.4095	1.0908	3.3763	2.2249	5.3286	3.7743	4.4263		4.3871	2.6891
H13	3.3484	4.6290	5.7396	6.0506	2.2101	3.3592	1.0915	2.2686	6.2778	6.9346	2.6891	4.3871		2.7146
H14	3.3484	4.6290	6.0506	5.7396	3.3592	2.2101	2.2686	1.0915	6.9346	6.2778	4.3871	2.6891	2.7146

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	152.063	C1	C2	C4	152.063
C1	C5	C7	107.092	C1	C5	H11	125.433
C1	C6	C8	107.092	C1	C6	H12	125.433
C2	C1	C5	126.051	C2	C1	C6	126.051
C2	C3	C4	62.063	C2	C3	H9	149.822
C2	C4	C3	62.063	C2	C4	H10	149.822
C3	C2	C4	55.874	C3	C4	H10	148.114
C4	C3	H9	148.114	C5	C1	C6	107.897
C5	C7	C8	108.960	C5	C7	H13	125.864
C6	C8	C7	108.960	C6	C8	H14	125.864
C7	C5	H11	127.476	C7	C8	H14	125.177
C8	C6	H12	127.476	C8	C7	H13	125.177

All results from a given calculation for C₈H₆ (Calicene)

using model chemistry: MP2=FULL/aug-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

All results from a given calculation for C8H6 (Calicene)

using model chemistry: MP2=FULL/aug-cc-pVDZ

States and conformations

All results from a given calculation for C₈H₆ (Calicene)