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	-286.300440
Energy at 298.15K
HF Energy	-286.010618
Nuclear repulsion energy	240.710563

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3214	3049	5.24
2	A'	3111	2952	46.13
3	A'	3099	2940	9.39
4	A'	3094	2935	40.51
5	A'	1756	1666	122.65
6	A'	1576	1496	0.75
7	A'	1552	1473	0.30
8	A'	1529	1450	9.38
9	A'	1460	1385	30.19
10	A'	1407	1335	17.16
11	A'	1367	1297	13.80
12	A'	1276	1210	107.87
13	A'	1104	1047	0.94
14	A'	1027	975	93.01
15	A'	996	945	0.21
16	A'	965	915	24.34
17	A'	919	872	18.98
18	A'	762	723	6.00
19	A'	667	633	2.84
20	A'	350	332	5.63
21	A"	3164	3002	10.30
22	A"	3163	3001	42.67
23	A"	3129	2968	7.97
24	A"	1525	1447	8.53
25	A"	1275	1209	0.09
26	A"	1237	1174	1.46
27	A"	1145	1086	0.01
28	A"	1089	1033	3.23
29	A"	849	806	0.43
30	A"	594	563	6.14
31	A"	240	228	10.18
32	A"	145	138	1.08
33	A"	58	55	0.04

Atom	x (Å)	y (Å)	z (Å)
C1	0.342	2.128	0.000
C2	0.547	-1.500	0.000
C3	-0.994	-1.286	0.000
N4	-1.170	0.170	0.000
O5	1.080	-0.161	0.000
C6	0.000	0.675	0.000
H7	0.914	-2.019	0.888
H8	0.914	-2.019	-0.888
H9	-1.477	-1.719	0.881
H10	-1.477	-1.719	-0.881
H11	0.939	2.374	0.882
H12	0.939	2.374	-0.882
H13	-0.574	2.716	0.000

	C1	C2	C3	N4	O5	C6	H7	H8	H9	H10	H11	H12	H13
C1		3.6333	3.6662	2.4733	2.4048	1.4924	4.2791	4.2791	4.3451	4.3451	1.0932	1.0932	1.0886
C2	3.6333		1.5551	2.3949	1.4413	2.2425	1.0927	1.0927	2.2178	2.2178	3.9918	3.9918	4.3618
C3	3.6662	1.5551		1.4673	2.3597	2.1989	2.2286	2.2286	1.0940	1.0940	4.2320	4.2320	4.0239
N4	2.4733	2.3949	1.4673		2.2744	1.2742	3.1505	3.1505	2.1070	2.1070	3.1750	3.1750	2.6140
O5	2.4048	1.4413	2.3597	2.2744		1.3659	2.0660	2.0660	3.1212	3.1212	2.6873	2.6873	3.3183
C6	1.4924	2.2425	2.1989	1.2742	1.3659		2.9803	2.9803	2.9475	2.9475	2.1319	2.1319	2.1198
H7	4.2791	1.0927	2.2286	3.1505	2.0660	2.9803		1.7769	2.4099	2.9899	4.3924	4.7358	5.0417
H8	4.2791	1.0927	2.2286	3.1505	2.0660	2.9803	1.7769		2.9899	2.4099	4.7358	4.3924	5.0417
H9	4.3451	2.2178	1.0940	2.1070	3.1212	2.9475	2.4099	2.9899		1.7626	4.7522	5.0688	4.6102
H10	4.3451	2.2178	1.0940	2.1070	3.1212	2.9475	2.9899	2.4099	1.7626		5.0688	4.7522	4.6102
H11	1.0932	3.9918	4.2320	3.1750	2.6873	2.1319	4.3924	4.7358	4.7522	5.0688		1.7642	1.7848
H12	1.0932	3.9918	4.2320	3.1750	2.6873	2.1319	4.7358	4.3924	5.0688	4.7522	1.7642		1.7848
H13	1.0886	4.3618	4.0239	2.6140	3.3183	2.1198	5.0417	5.0417	4.6102	4.6102	1.7848	1.7848

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C6	N4	126.582	C1	C6	O5	114.492
C2	C3	N4	104.779	C2	C3	H9	112.528
C2	C3	H10	112.528	C2	O5	C6	106.007
C3	C2	O5	103.845	C3	C2	H7	113.488
C3	C2	H8	113.488	C3	N4	C6	106.444
N4	C3	H9	109.835	N4	C3	H10	109.835
N4	C6	O5	118.926	O5	C2	H7	108.458
O5	C2	H8	108.458	C6	C1	H11	110.120
C6	C1	H12	110.120	C6	C1	H13	109.436
H7	C2	H8	108.798	H9	C3	H10	107.326
H11	C1	H12	107.583	H11	C1	H13	109.780
H12	C1	H13	109.780

All results from a given calculation for C₄H₇NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: B2PLYP=FULLultrafine/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

All results from a given calculation for C4H7NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: B2PLYP=FULLultrafine/6-31G*

States and conformations

All results from a given calculation for C₄H₇NO (Oxazole, 4,5-dihydro-2-methyl-)