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	-309.489973
Energy at 298.15K	-309.497757
Nuclear repulsion energy	325.453196

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3159	3028	0.00
2	A₁	1750	1677	0.00
3	A₁	1234	1183	0.00
4	A₁	902	864	0.00
5	A₁	777	745	0.00
6	A₁	182	175	0.00
7	A₂	3124	2995	0.00
8	A₂	1382	1324	0.00
9	A₂	1008	966	0.00
10	A₂	937	898	0.00
11	A₂	231	222	0.00
12	B₁	3133	3004	0.00
13	B₁	1480	1419	0.00
14	B₁	1054	1010	0.00
15	B₁	977	937	0.00
16	B₁	675	647	0.00
17	B₁	263	252	0.00
18	B₂	3145	3014	45.79
19	B₂	1720	1648	1.14
20	B₂	1237	1186	1.38
21	B₂	683	655	97.59
22	B₂	288	276	2.15
23	E	3152	3022	80.35
23	E	3152	3022	80.35
24	E	3127	2998	2.38
24	E	3127	2998	2.38
25	E	1723	1652	1.74
25	E	1723	1652	1.74
26	E	1433	1373	0.36
26	E	1433	1373	0.36
27	E	1250	1198	0.97
27	E	1250	1198	0.97
28	E	996	955	0.42
28	E	996	955	0.42
29	E	972	932	1.63
29	E	972	932	1.63
30	E	815	781	25.65
30	E	815	781	25.65
31	E	640	614	21.48
31	E	640	614	21.48
32	E	363	348	2.18
32	E	363	348	2.18

Atom	x (Å)	y (Å)	z (Å)
C1	0.667	1.546	0.389
C2	-0.667	1.546	0.389
C3	0.667	-1.546	0.389
C4	-0.667	-1.546	0.389
C5	1.546	0.667	-0.389
C6	-1.546	0.667	-0.389
C7	1.546	-0.667	-0.389
C8	-1.546	-0.667	-0.389
H9	1.173	2.320	0.963
H10	-1.173	2.320	0.963
H11	1.173	-2.320	0.963
H12	-1.173	-2.320	0.963
H13	2.320	1.173	-0.963
H14	-2.320	1.173	-0.963
H15	2.320	-1.173	-0.963
H16	-2.320	-1.173	-0.963

	C1	C2	C3	C4	C5	C6	C7	C8	H9	H10	H11	H12	H13	H14	H15	H16
C1		1.3348	3.0919	3.3677	1.4656	2.5050	2.5050	3.2252	1.0887	2.0776	3.9411	4.3202	2.1677	3.3004	3.4572	4.2598
C2	1.3348		3.3677	3.0919	2.5050	1.4656	3.2252	2.5050	2.0776	1.0887	4.3202	3.9411	3.3004	2.1677	4.2598	3.4572
C3	3.0919	3.3677		1.3348	2.5050	3.2252	1.4656	2.5050	3.9411	4.3202	1.0887	2.0776	3.4572	4.2598	2.1677	3.3004
C4	3.3677	3.0919	1.3348		3.2252	2.5050	2.5050	1.4656	4.3202	3.9411	2.0776	1.0887	4.2598	3.4572	3.3004	2.1677
C5	1.4656	2.5050	2.5050	3.2252		3.0919	1.3348	3.3677	2.1677	3.4572	3.3004	4.2598	1.0887	3.9411	2.0776	4.3202
C6	2.5050	1.4656	3.2252	2.5050	3.0919		3.3677	1.3348	3.4572	2.1677	4.2598	3.3004	3.9411	1.0887	4.3202	2.0776
C7	2.5050	3.2252	1.4656	2.5050	1.3348	3.3677		3.0919	3.3004	4.2598	2.1677	3.4572	2.0776	4.3202	1.0887	3.9411
C8	3.2252	2.5050	2.5050	1.4656	3.3677	1.3348	3.0919		4.2598	3.3004	3.4572	2.1677	4.3202	2.0776	3.9411	1.0887
H9	1.0887	2.0776	3.9411	4.3202	2.1677	3.4572	3.3004	4.2598		2.3460	4.6403	5.1996	2.5187	4.1509	4.1509	5.3025
H10	2.0776	1.0887	4.3202	3.9411	3.4572	2.1677	4.2598	3.3004	2.3460		5.1996	4.6403	4.1509	2.5187	5.3025	4.1509
H11	3.9411	4.3202	1.0887	2.0776	3.3004	4.2598	2.1677	3.4572	4.6403	5.1996		2.3460	4.1509	5.3025	2.5187	4.1509
H12	4.3202	3.9411	2.0776	1.0887	4.2598	3.3004	3.4572	2.1677	5.1996	4.6403	2.3460		5.3025	4.1509	4.1509	2.5187
H13	2.1677	3.3004	3.4572	4.2598	1.0887	3.9411	2.0776	4.3202	2.5187	4.1509	4.1509	5.3025		4.6403	2.3460	5.1996
H14	3.3004	2.1677	4.2598	3.4572	3.9411	1.0887	4.3202	2.0776	4.1509	2.5187	5.3025	4.1509	4.6403		5.1996	2.3460
H15	3.4572	4.2598	2.1677	3.3004	2.0776	4.3202	1.0887	3.9411	4.1509	5.3025	2.5187	4.1509	2.3460	5.1996		4.6403
H16	4.2598	3.4572	3.3004	2.1677	4.3202	2.0776	3.9411	1.0887	5.3025	4.1509	4.1509	2.5187	5.1996	2.3460	4.6403

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C6	126.829	C1	C2	H10	117.674
C1	C5	C7	126.829	C1	C5	H13	115.331
C2	C1	C5	126.829	C2	C1	H9	117.674
C2	C6	C8	126.829	C2	C6	H14	115.331
C3	C4	C8	126.829	C3	C4	H12	117.674
C3	C7	C5	126.829	C3	C7	H15	115.331
C4	C3	C7	126.829	C4	C3	H11	117.674
C4	C8	C6	126.829	C4	C8	H16	115.331
C5	C1	H9	115.331	C5	C7	H15	117.674
C6	C2	H10	115.331	C6	C8	H16	117.674
C7	C3	H11	115.331	C7	C5	H13	117.674
C8	C4	H12	115.331	C8	C6	H14	117.674

All results from a given calculation for C₈H₈ (cyclooctatetraene)

using model chemistry: B1B95/6-311G*

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	-0.203
2	C	-0.203
3	C	-0.203
4	C	-0.203
5	C	-0.203
6	C	-0.203
7	C	-0.203
8	C	-0.203
9	H	0.203
10	H	0.203
11	H	0.203
12	H	0.203
13	H	0.203
14	H	0.203
15	H	0.203
16	H	0.203

	x	y	z	Total
	0.000	0.000	0.000	0.000
CHELPG
AIM
ESP

	x	y	z
x	14.326	0.000	0.000
y	0.000	14.326	0.000
z	0.000	0.000	7.731

<r²>	232.946
(<r²>)^1/2	15.263

All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: B1B95/6-311G*

States and conformations

All results from a given calculation for C₈H₈ (cyclooctatetraene)