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	-49.732977
Energy at 298.15K	-49.743701
HF Energy	-48.946860
Nuclear repulsion energy	133.421796

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3199	3037	26.87
2	A	3194	3032	25.67
3	A	3190	3028	47.44
4	A	3179	3018	38.02
5	A	3142	2983	22.15
6	A	3094	2937	20.32
7	A	3085	2929	22.73
8	A	3079	2923	39.30
9	A	3076	2921	24.38
10	A	2972	2822	120.38
11	A	1754	1665	127.70
12	A	1538	1461	3.36
13	A	1528	1451	13.59
14	A	1523	1446	7.79
15	A	1521	1444	7.52
16	A	1510	1433	0.86
17	A	1455	1382	6.87
18	A	1445	1372	3.72
19	A	1415	1343	3.09
20	A	1403	1332	2.25
21	A	1387	1317	3.33
22	A	1336	1268	1.37
23	A	1290	1225	1.06
24	A	1217	1156	1.61
25	A	1190	1129	2.68
26	A	1131	1073	3.08
27	A	1072	1018	0.17
28	A	1040	988	10.15
29	A	993	942	10.99
30	A	946	898	12.17
31	A	928	881	6.26
32	A	803	762	4.24
33	A	787	747	3.35
34	A	664	630	7.70
35	A	406	386	0.90
36	A	381	362	0.83
37	A	301	286	3.19
38	A	258	245	1.84
39	A	235	224	3.44
40	A	203	193	0.11
41	A	92	87	2.86
42	A	75	71	5.03

Atom	x (Å)	y (Å)	z (Å)
C1	-1.388	-0.688	0.246
C2	-0.081	0.081	0.436
C3	1.041	-0.714	-0.286
C4	2.455	-0.146	-0.025
C5	-0.209	1.539	-0.040
O6	-2.403	-0.244	-0.309
H7	-1.378	-1.739	0.634
H8	0.137	0.052	1.525
H9	1.010	-1.769	0.052
H10	0.831	-0.716	-1.373
H11	3.222	-0.794	-0.486
H12	2.568	0.866	-0.449
H13	2.658	-0.091	1.061
H14	-0.366	1.575	-1.132
H15	-1.075	2.028	0.438
H16	0.699	2.114	0.209

	C1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13	H14	H15	H16
C1		1.5280	2.4868	3.8902	2.5357	1.2387	1.1206	2.1227	2.6375	2.7472	4.6689	4.3063	4.1696	2.8396	2.7407	3.4936
C2	1.5280		1.5536	2.5875	1.5392	2.4598	2.2437	1.1106	2.1814	2.1772	3.5391	2.9010	2.8141	2.1846	2.1863	2.1895
C3	2.4868	1.5536		1.5460	2.5889	3.4758	2.7839	2.1645	1.1079	1.1069	2.1915	2.2032	2.1947	2.8171	3.5390	2.8920
C4	3.8902	2.5875	1.5460		3.1526	4.8669	4.2029	2.7954	2.1737	2.1862	1.1046	1.1031	1.1056	3.4852	4.1717	2.8722
C5	2.5357	1.5392	2.5889	3.1526		2.8398	3.5449	2.1863	3.5265	2.8185	4.1731	2.8867	3.4763	1.1040	1.1031	1.1031
O6	1.2387	2.4598	3.4758	4.8669	2.8398		2.0425	3.1462	3.7552	3.4369	5.6543	5.0949	5.2445	2.8524	2.7360	3.9306
H7	1.1206	2.2437	2.7839	4.2029	3.5449	2.0425		2.5092	2.4583	3.1554	4.8280	4.8507	4.3804	3.8892	3.7846	4.3979
H8	2.1227	1.1106	2.1645	2.7954	2.1863	3.1462	2.5092		2.4987	3.0772	3.7784	3.2354	2.5671	3.1035	2.5605	2.5101
H9	2.6375	2.1814	1.1079	2.1737	3.5265	3.7552	2.4583	2.4987		1.7816	2.4764	3.1012	2.5585	3.8049	4.3488	3.8984
H10	2.7472	2.1772	1.1069	2.1862	2.8185	3.4369	3.1554	3.0772	1.7816		2.5515	2.5242	3.1065	2.5958	3.8003	3.2449
H11	4.6689	3.5391	2.1915	1.1046	4.1731	5.6543	4.8280	3.7784	2.4764	2.5515		1.7841	1.7902	4.3476	5.2231	3.9124
H12	4.3063	2.9010	2.2032	1.1031	2.8867	5.0949	4.8507	3.2354	3.1012	2.5242	1.7841		1.7890	3.0947	3.9252	2.3421
H13	4.1696	2.8141	2.1947	1.1056	3.4763	5.2445	4.3804	2.5671	2.5585	3.1065	1.7902	1.7890		4.0893	4.3368	3.0696
H14	2.8396	2.1846	2.8171	3.4852	1.1040	2.8524	3.8892	3.1035	3.8049	2.5958	4.3476	3.0947	4.0893		1.7812	1.7952
H15	2.7407	2.1863	3.5390	4.1717	1.1031	2.7360	3.7846	2.5605	4.3488	3.8003	5.2231	3.9252	4.3368	1.7812		1.7903
H16	3.4936	2.1895	2.8920	2.8722	1.1031	3.9306	4.3979	2.5101	3.8984	3.2449	3.9124	2.3421	3.0696	1.7952	1.7903

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	107.605	C1	C2	C5	111.521
C1	C2	H8	106.044	C2	C1	O6	125.198
C2	C1	H7	114.938	C2	C3	C4	113.190
C2	C3	H9	108.942	C2	C3	H10	108.672
C2	C5	H14	110.397	C2	C5	H15	110.583
C2	C5	H16	110.828	C3	C2	C5	113.659
C3	C2	H8	107.505	C3	C4	H11	110.435
C3	C4	H12	111.448	C3	C4	H13	110.627
C4	C3	H9	108.866	C4	C3	H10	109.883
C5	C2	H8	110.139	O6	C1	H7	119.850
H9	C3	H10	107.104	H11	C4	H12	107.831
H11	C4	H13	108.192	H12	C4	H13	108.191
H14	C5	H15	107.617	H14	C5	H16	108.848
H15	C5	H16	108.478

All results from a given calculation for C₅H₁₀O (2-methylbutyraldehyde)

using model chemistry: MP2/CEP-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 C5H10O (2-methylbutyraldehyde)

using model chemistry: MP2/CEP-31G*

States and conformations

All results from a given calculation for C₅H₁₀O (2-methylbutyraldehyde)