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	-307.225050
Energy at 298.15K	-307.231795
HF Energy	-307.225050
Nuclear repulsion energy	268.274722

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3256	3256	0.00
2	A₁	3209	3209	2.63
3	A₁	3041	3041	4.86
4	A₁	1782	1782	196.82
5	A₁	1719	1719	76.66
6	A₁	1489	1489	23.88
7	A₁	1448	1448	0.62
8	A₁	1229	1229	7.36
9	A₁	984	984	5.70
10	A₁	907	907	9.91
11	A₁	797	797	0.62
12	A₁	518	518	3.39
13	A₂	1239	1239	0.00
14	A₂	1063	1063	0.00
15	A₂	782	782	0.00
16	A₂	376	376	0.00
17	B₁	3065	3065	5.43
18	B₁	1080	1080	0.00
19	B₁	985	985	23.52
20	B₁	867	867	55.94
21	B₁	598	598	27.00
22	B₁	323	323	3.87
23	B₁	129	129	1.16
24	B₂	3254	3254	10.85
25	B₂	3207	3207	14.45
26	B₂	1720	1720	4.87
27	B₂	1455	1455	35.71
28	B₂	1415	1415	1.02
29	B₂	1324	1324	27.57
30	B₂	1180	1180	8.39
31	B₂	1029	1029	8.29
32	B₂	597	597	0.56
33	B₂	461	461	15.97

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	1.105
C2	0.000	0.000	-1.827
C3	0.000	1.256	0.330
C4	0.000	-1.256	0.330
C5	0.000	1.257	-1.010
C6	0.000	-1.257	-1.010
O7	0.000	0.000	2.349
H8	0.000	2.172	0.910
H9	0.000	-2.172	0.910
H10	0.000	2.196	-1.557
H11	0.000	-2.196	-1.557
H12	0.871	0.000	-2.500
H13	-0.871	0.000	-2.500

	C1	C2	C3	C4	C5	C6	O7	H8	H9	H10	H11	H12	H13
C1		2.9315	1.4751	1.4751	2.4604	2.4604	1.2440	2.1803	2.1803	3.4506	3.4506	3.7083	3.7083
C2	2.9315		2.4961	2.4961	1.4993	1.4993	4.1755	3.4937	3.4937	2.2124	2.2124	1.1006	1.1006
C3	1.4751	2.4961		2.5112	1.3406	2.8481	2.3769	1.0839	3.4758	2.1088	3.9339	3.2165	3.2165
C4	1.4751	2.4961	2.5112		2.8481	1.3406	2.3769	3.4758	1.0839	3.9339	2.1088	3.2165	3.2165
C5	2.4604	1.4993	1.3406	2.8481		2.5146	3.5864	2.1266	3.9299	1.0863	3.4962	2.1351	2.1351
C6	2.4604	1.4993	2.8481	1.3406	2.5146		3.5864	3.9299	2.1266	3.4962	1.0863	2.1351	2.1351
O7	1.2440	4.1755	2.3769	2.3769	3.5864	3.5864		2.6049	2.6049	4.4807	4.4807	4.9262	4.9262
H8	2.1803	3.4937	1.0839	3.4758	2.1266	3.9299	2.6049		4.3432	2.4671	5.0161	4.1354	4.1354
H9	2.1803	3.4937	3.4758	1.0839	3.9299	2.1266	2.6049	4.3432		5.0161	2.4671	4.1354	4.1354
H10	3.4506	2.2124	2.1088	3.9339	1.0863	3.4962	4.4807	2.4671	5.0161		4.3918	2.5434	2.5434
H11	3.4506	2.2124	3.9339	2.1088	3.4962	1.0863	4.4807	5.0161	2.4671	4.3918		2.5434	2.5434
H12	3.7083	1.1006	3.2165	3.2165	2.1351	2.1351	4.9262	4.1354	4.1354	2.5434	2.5434		1.7415
H13	3.7083	1.1006	3.2165	3.2165	2.1351	2.1351	4.9262	4.1354	4.1354	2.5434	2.5434	1.7415

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C5	121.733	C1	C3	H8	116.023
C1	C4	C6	121.733	C1	C4	H9	116.023
C2	C5	C3	122.931	C2	C5	H10	116.764
C2	C6	C4	122.931	C2	C6	H11	116.764
C3	C1	C4	116.682	C3	C1	O7	121.659
C3	C5	H10	120.305	C4	C1	O7	121.659
C4	C6	H11	120.305	C5	C2	C6	113.989
C5	C2	H12	109.461	C5	C2	H13	109.461
C5	C3	H8	122.244	C6	C2	H12	109.461
C6	C2	H13	109.461	C6	C4	H9	122.244
H12	C2	H13	104.587

All results from a given calculation for C₆H₆O (2,5-Cyclohexadienone)

using model chemistry: M06-2X/6-31G

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	0.251
2	C	-0.397
3	C	-0.120
4	C	-0.120
5	C	-0.132
6	C	-0.132
7	O	-0.457
8	H	0.183
9	H	0.183
10	H	0.172
11	H	0.172
12	H	0.199
13	H	0.199

<r²>	188.359
(<r²>)^1/2	13.724

All results from a given calculation for C6H6O (2,5-Cyclohexadienone)

using model chemistry: M06-2X/6-31G

States and conformations

All results from a given calculation for C₆H₆O (2,5-Cyclohexadienone)