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	-229.877227
Energy at 298.15K	-229.884646
HF Energy	-229.877227
Nuclear repulsion energy	176.017973

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3398	3074	8.24
2	A	3372	3051	0.91
3	A	3248	2938	49.43
4	A	3204	2898	65.53
5	A	3185	2881	25.81
6	A	3162	2861	49.98
7	A	1819	1646	86.47
8	A	1653	1495	0.22
9	A	1624	1469	0.34
10	A	1541	1394	5.91
11	A	1449	1311	3.22
12	A	1430	1294	7.97
13	A	1361	1231	4.05
14	A	1319	1193	11.74
15	A	1271	1150	95.59
16	A	1191	1077	57.33
17	A	1175	1063	9.02
18	A	1088	984	25.84
19	A	1064	962	2.51
20	A	1020	923	36.61
21	A	988	894	23.78
22	A	913	826	3.63
23	A	900	814	7.27
24	A	815	737	50.39
25	A	753	681	2.40
26	A	496	449	20.59
27	A	93	84	1.45

Atom	x (Å)	y (Å)	z (Å)
H1	1.283	1.908	0.076
C2	0.698	1.015	0.035
H3	2.188	-0.544	0.025
C4	1.172	-0.209	0.009
O5	0.245	-1.184	-0.063
H6	-1.173	1.346	-0.993
H7	-1.306	1.487	0.742
C8	-0.807	0.948	-0.053
H9	-1.677	-0.972	-0.707
H10	-1.439	-0.842	1.030
C11	-1.035	-0.572	0.063

	H1	C2	H3	C4	O5	H6	H7	C8	H9	H10	C11
H1		1.0688	2.6146	2.1211	3.2652	2.7374	2.7067	2.3041	4.2035	3.9856	3.3949
C2	1.0688		2.1568	1.3127	2.2475	2.1609	2.1772	1.5094	3.1839	3.0008	2.3498
H3	2.6146	2.1568		1.0700	2.0485	3.9887	4.1056	3.3478	3.9569	3.7764	3.2236
C4	2.1211	1.3127	1.0700		1.3481	2.9873	3.0919	2.2939	3.0351	2.8750	2.2376
O5	3.2652	2.2475	2.0485	1.3481		3.0461	3.1924	2.3777	2.0375	2.0365	1.4238
H6	2.7374	2.1609	3.9887	2.9873	3.0461		1.7466	1.0848	2.3893	2.9920	2.1944
H7	2.7067	2.1772	4.1056	3.0919	3.1924	1.7466		1.0827	2.8787	2.3508	2.1857
C8	2.3041	1.5094	3.3478	2.2939	2.3777	1.0848	1.0827		2.2068	2.1854	1.5416
H9	4.2035	3.1839	3.9569	3.0351	2.0375	2.3893	2.8787	2.2068		1.7580	1.0794
H10	3.9856	3.0008	3.7764	2.8750	2.0365	2.9920	2.3508	2.1854	1.7580		1.0823
C11	3.3949	2.3498	3.2236	2.2376	1.4238	2.1944	2.1857	1.5416	1.0794	1.0823

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
H1	C2	C4	125.598	H1	C2	C8	125.819
C2	C4	H3	129.415	C2	C4	O5	115.263
C2	C8	H6	111.764	C2	C8	H7	113.236
C2	C8	C11	100.735	H3	C4	O5	115.319
C4	C2	C8	108.547	C4	O5	C11	107.620
O5	C11	C8	106.545	O5	C11	H9	108.182
O5	C11	H10	107.930	H6	C8	H7	107.379
H6	C8	C11	112.171	H7	C8	C11	111.595
C8	C11	H9	113.531	C8	C11	H10	111.599
H9	C11	H10	108.836

All results from a given calculation for C₄H₆O (Furan, 2,3-dihydro-)

using model chemistry: HF/daug-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	H	0.689
2	C	-0.361
3	H	1.081
4	C	-1.351
5	O	-0.639
6	H	0.361
7	H	0.254
8	C	-0.615
9	H	0.444
10	H	0.478
11	C	-0.340

	x	y	z	Total
	-0.637	1.079	0.094	1.257
CHELPG
AIM
ESP

	x	y	z
x	7.542	-0.280	0.015
y	-0.280	7.759	-0.024
z	0.015	-0.024	5.746

<r²>	92.980
(<r²>)^1/2	9.643

All results from a given calculation for C4H6O (Furan, 2,3-dihydro-)

using model chemistry: HF/daug-cc-pVTZ

States and conformations

All results from a given calculation for C₄H₆O (Furan, 2,3-dihydro-)