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	-286.472501
Energy at 298.15K	-286.481396
HF Energy	-286.113287
Nuclear repulsion energy	241.306956

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3183	3054	4.45
2	A'	3085	2960	52.78
3	A'	3071	2946	13.17
4	A'	3070	2945	34.89
5	A'	1731	1660	131.88
6	A'	1543	1481	1.99
7	A'	1520	1458	0.09
8	A'	1492	1432	10.81
9	A'	1429	1371	34.77
10	A'	1386	1330	12.78
11	A'	1343	1288	8.77
12	A'	1257	1206	106.51
13	A'	1087	1043	1.25
14	A'	1010	969	91.91
15	A'	984	944	0.36
16	A'	953	914	26.34
17	A'	912	875	21.96
18	A'	758	727	6.41
19	A'	664	638	2.02
20	A'	351	337	5.74
21	A"	3135	3008	37.45
22	A"	3131	3004	7.91
23	A"	3100	2974	5.62
24	A"	1492	1431	8.04
25	A"	1261	1210	0.10
26	A"	1225	1176	2.44
27	A"	1131	1085	0.04
28	A"	1074	1030	2.22
29	A"	837	803	0.33
30	A"	602	578	4.20
31	A"	239	230	10.25
32	A"	137	132	0.75
33	A"	43	42	0.02

Atom	x (Å)	y (Å)	z (Å)
C1	0.335	2.125	0.000
C2	0.542	-1.501	0.000
C3	-0.987	-1.288	0.000
N4	-1.164	0.171	0.000
O5	1.081	-0.158	0.000
C6	0.000	0.678	0.000
H7	0.909	-2.013	0.886
H8	0.909	-2.013	-0.886
H9	-1.467	-1.717	0.879
H10	-1.467	-1.717	-0.879
H11	0.930	2.370	0.878
H12	0.930	2.370	-0.878
H13	-0.578	2.709	0.000

	C1	C2	C3	N4	O5	C6	H7	H8	H9	H10	H11	H12	H13
C1		3.6318	3.6598	2.4631	2.4018	1.4851	4.2708	4.2708	4.3335	4.3335	1.0889	1.0889	1.0841
C2	3.6318		1.5441	2.3885	1.4467	2.2455	1.0875	1.0875	2.2035	2.2035	3.9886	3.9886	4.3565
C3	3.6598	1.5441		1.4689	2.3561	2.1997	2.2152	2.2152	1.0892	1.0892	4.2223	4.2223	4.0176
N4	2.4631	2.3885	1.4689		2.2686	1.2699	3.1388	3.1388	2.1038	2.1038	3.1615	3.1615	2.6052
O5	2.4018	1.4467	2.3561	2.2686		1.3665	2.0631	2.0631	3.1131	3.1131	2.6810	2.6810	3.3125
C6	1.4851	2.2455	2.1997	1.2699	1.3665		2.9758	2.9758	2.9428	2.9428	2.1213	2.1213	2.1116
H7	4.2708	1.0875	2.2152	3.1388	2.0631	2.9758		1.7729	2.3943	2.9745	4.3837	4.7256	5.0297
H8	4.2708	1.0875	2.2152	3.1388	2.0631	2.9758	1.7729		2.9745	2.3943	4.7256	4.3837	5.0297
H9	4.3335	2.2035	1.0892	2.1038	3.1131	2.9428	2.3943	2.9745		1.7571	4.7382	5.0535	4.5990
H10	4.3335	2.2035	1.0892	2.1038	3.1131	2.9428	2.9745	2.3943	1.7571		5.0535	4.7382	4.5990
H11	1.0889	3.9886	4.2223	3.1615	2.6810	2.1213	4.3837	4.7256	4.7382	5.0535		1.7568	1.7779
H12	1.0889	3.9886	4.2223	3.1615	2.6810	2.1213	4.7256	4.3837	5.0535	4.7382	1.7568		1.7779
H13	1.0841	4.3565	4.0176	2.6052	3.3125	2.1116	5.0297	5.0297	4.5990	4.5990	1.7779	1.7779

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C6	N4	126.598	C1	C6	O5	114.698
C2	C3	N4	104.856	C2	C3	H9	112.453
C2	C3	H10	112.453	C2	O5	C6	105.887
C3	C2	O5	103.910	C3	C2	H7	113.520
C3	C2	H8	113.520	C3	N4	C6	106.643
N4	C3	H9	109.764	N4	C3	H10	109.764
N4	C6	O5	118.703	O5	C2	H7	108.162
O5	C2	H8	108.162	C6	C1	H11	110.049
C6	C1	H12	110.049	C6	C1	H13	109.560
H7	C2	H8	109.193	H9	C3	H10	107.529
H11	C1	H12	107.550	H11	C1	H13	109.804
H12	C1	H13	109.804

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

using model chemistry: B2PLYP/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	C	-0.276
2	C	0.004
3	C	-0.080
4	N	-0.262
5	O	-0.308
6	C	0.215
7	H	0.091
8	H	0.091
9	H	0.092
10	H	0.092
11	H	0.109
12	H	0.109
13	H	0.123

	x	y	z
x	8.143	0.617	0.000
y	0.617	9.780	0.000
z	0.000	0.000	6.276

<r²>	148.368
(<r²>)^1/2	12.181

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

using model chemistry: B2PLYP/cc-pVTZ

States and conformations

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