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	-49.339759
Energy at 298.15K	-49.350361
HF Energy	-48.815561
Nuclear repulsion energy	131.265742

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3149	3043	39.84
2	A	3143	3037	49.62
3	A	3138	3032	83.39
4	A	3128	3022	61.89
5	A	3091	2986	31.88
6	A	3039	2937	23.49
7	A	3031	2929	26.78
8	A	3027	2925	42.16
9	A	3025	2923	65.00
10	A	2970	2870	123.00
11	A	1578	1524	72.02
12	A	1538	1486	2.99
13	A	1528	1476	11.38
14	A	1523	1472	2.95
15	A	1523	1471	9.94
16	A	1509	1459	0.02
17	A	1458	1409	8.15
18	A	1451	1402	5.51
19	A	1413	1365	1.40
20	A	1398	1351	2.30
21	A	1364	1318	1.53
22	A	1331	1287	1.94
23	A	1301	1257	0.60
24	A	1223	1182	1.13
25	A	1174	1134	2.71
26	A	1123	1085	3.53
27	A	1058	1022	0.21
28	A	1034	1000	9.00
29	A	995	962	11.53
30	A	916	885	14.61
31	A	911	880	4.66
32	A	799	772	4.35
33	A	771	745	3.24
34	A	645	623	8.55
35	A	401	388	0.88
36	A	374	362	1.00
37	A	291	282	4.01
38	A	243	235	3.10
39	A	222	215	2.51
40	A	182	176	0.21
41	A	88	85	4.44
42	A	70	68	5.24

Atom	x (Å)	y (Å)	z (Å)
C1	-1.408	-0.710	0.236
C2	-0.083	0.069	0.429
C3	1.074	-0.728	-0.297
C4	2.502	-0.139	-0.013
C5	-0.207	1.557	-0.043
O6	-2.473	-0.230	-0.288
H7	-1.395	-1.778	0.576
H8	0.137	0.042	1.526
H9	1.046	-1.790	0.043
H10	0.874	-0.724	-1.394
H11	3.285	-0.788	-0.462
H12	2.612	0.878	-0.444
H13	2.687	-0.076	1.082
H14	-0.337	1.605	-1.146
H15	-1.089	2.043	0.421
H16	0.701	2.131	0.236

	C1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13	H14	H15	H16
C1		1.5494	2.5384	3.9593	2.5808	1.2805	1.1211	2.1491	2.6881	2.8037	4.7453	4.3754	4.2294	2.9012	2.7779	3.5383
C2	1.5494		1.5819	2.6309	1.5658	2.5133	2.2708	1.1191	2.2097	2.2064	3.5880	2.9461	2.8497	2.2145	2.2155	2.2141
C3	2.5384	1.5819		1.5708	2.6321	3.5817	2.8216	2.1901	1.1155	1.1145	2.2182	2.2287	2.2204	2.8559	3.5884	2.9325
C4	3.9593	2.6309	1.5708		3.1965	4.9835	4.2686	2.8277	2.2022	2.2136	1.1113	1.1099	1.1125	3.5195	4.2249	2.9087
C5	2.5808	1.5658	2.6321	3.1965		2.8962	3.5943	2.2082	3.5753	2.8628	4.2270	2.9273	3.5085	1.1110	1.1094	1.1099
O6	1.2805	2.5133	3.5817	4.9835	2.8962		2.0753	3.1905	3.8636	3.5589	5.7877	5.2067	5.3412	2.9438	2.7542	3.9904
H7	1.1211	2.2708	2.8216	4.2686	3.5943	2.0753		2.5619	2.4987	3.1842	4.8954	4.9145	4.4515	3.9413	3.8367	4.4486
H8	2.1491	1.1191	2.1901	2.8277	2.2082	3.1905	2.5619		2.5270	3.1074	3.8148	3.2718	2.5912	3.1316	2.5938	2.5188
H9	2.6881	2.2097	1.1155	2.2022	3.5753	3.8636	2.4987	2.5270		1.7971	2.5049	3.1319	2.5907	3.8543	4.4044	3.9413
H10	2.8037	2.2064	1.1145	2.2136	2.8628	3.5589	3.1842	3.1074	1.7971		2.5860	2.5479	3.1365	2.6371	3.8479	3.2923
H11	4.7453	3.5880	2.2182	1.1113	4.2270	5.7877	4.8954	3.8148	2.5049	2.5860		1.7962	1.8022	4.3947	5.2848	3.9603
H12	4.3754	2.9461	2.2287	1.1099	2.9273	5.2067	4.9145	3.2718	3.1319	2.5479	1.7962		1.8009	3.1176	3.9758	2.3845
H13	4.2294	2.8497	2.2204	1.1125	3.5085	5.3412	4.4515	2.5912	2.5907	3.1365	1.8022	1.8009		4.1153	4.3805	3.0874
H14	2.9012	2.2145	2.8559	3.5195	1.1110	2.9438	3.9413	3.1316	3.8543	2.6371	4.3947	3.1176	4.1153		1.7926	1.8064
H15	2.7779	2.2155	3.5884	4.2249	1.1094	2.7542	3.8367	2.5938	4.4044	3.8479	5.2848	3.9758	4.3805	1.7926		1.8018
H16	3.5383	2.2141	2.9325	2.9087	1.1099	3.9904	4.4486	2.5188	3.9413	3.2923	3.9603	2.3845	3.0874	1.8064	1.8018

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	108.316	C1	C2	C5	111.875
C1	C2	H8	106.168	C2	C1	O6	125.010
C2	C1	H7	115.561	C2	C3	C4	113.126
C2	C3	H9	108.772	C2	C3	H10	108.580
C2	C5	H14	110.492	C2	C5	H15	110.660
C2	C5	H16	110.519	C3	C2	C5	113.474
C3	C2	H8	107.110	C3	C4	H11	110.420
C3	C4	H12	111.324	C3	C4	H13	110.521
C4	C3	H9	108.942	C4	C3	H10	109.872
C5	C2	H8	109.536	O6	C1	H7	119.421
H9	C3	H10	107.383	H11	C4	H12	107.935
H11	C4	H13	108.274	H12	C4	H13	108.263
H14	C5	H15	107.671	H14	C5	H16	108.855
H15	C5	H16	108.563

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)