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	-269.045954
Energy at 298.15K	-269.056941
HF Energy	-268.516477
Nuclear repulsion energy	238.967514

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3218	3007	17.93
2	A	3209	2999	20.85
3	A	3204	2993	35.30
4	A	3190	2981	30.53
5	A	3156	2949	12.99
6	A	3144	2938	8.85
7	A	3129	2924	14.85
8	A	3117	2913	28.73
9	A	3108	2904	8.39
10	A	3020	2822	99.18
11	A	1804	1685	84.91
12	A	1631	1524	4.24
13	A	1626	1519	11.00
14	A	1619	1513	4.35
15	A	1618	1512	9.79
16	A	1605	1500	0.14
17	A	1532	1431	10.58
18	A	1522	1422	6.81
19	A	1506	1407	1.53
20	A	1460	1365	3.73
21	A	1431	1337	1.87
22	A	1399	1308	2.99
23	A	1372	1282	0.36
24	A	1273	1189	1.10
25	A	1215	1135	3.50
26	A	1191	1113	7.66
27	A	1081	1010	5.72
28	A	1068	998	3.15
29	A	1041	973	15.52
30	A	995	930	0.29
31	A	929	868	16.46
32	A	842	786	5.62
33	A	805	753	4.33
34	A	694	648	7.98
35	A	426	398	0.67
36	A	408	381	0.83
37	A	312	291	7.63
38	A	276	258	0.97
39	A	241	225	2.31
40	A	204	191	0.64
41	A	102	96	2.54
42	A	86	80	3.50

Atom	x (Å)	y (Å)	z (Å)
C1	-1.369	-0.717	0.199
C2	-0.079	0.060	0.411
C3	1.071	-0.681	-0.322
C4	2.468	-0.120	0.025
C5	-0.256	1.514	-0.058
O6	-2.413	-0.236	-0.229
H7	-1.299	-1.783	0.465
H8	0.138	0.035	1.486
H9	1.039	-1.742	-0.054
H10	0.899	-0.611	-1.399
H11	3.246	-0.697	-0.478
H12	2.561	0.920	-0.287
H13	2.641	-0.175	1.102
H14	-0.432	1.535	-1.135
H15	-1.119	1.966	0.430
H16	0.627	2.110	0.167

	C1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13	H14	H15	H16
C1		1.5209	2.4951	3.8868	2.5062	1.2263	1.1004	2.1197	2.6289	2.7766	4.6641	4.2852	4.1456	2.7799	2.7049	3.4609
C2	1.5209		1.5516	2.5819	1.5378	2.4383	2.2106	1.0969	2.1704	2.1640	3.5235	2.8628	2.8157	2.1653	2.1718	2.1818
C3	2.4951	1.5516		1.5448	2.5781	3.5132	2.7291	2.1568	1.0945	1.0933	2.1805	2.1876	2.1790	2.7978	3.5168	2.8679
C4	3.8868	2.5819	1.5448		3.1774	4.8886	4.1406	2.7542	2.1628	2.1754	1.0914	1.0900	1.0921	3.5344	4.1691	2.8949
C5	2.5062	1.5378	2.5781	3.1774		2.7828	3.4967	2.1736	3.5034	2.7653	4.1626	2.8882	3.5482	1.0910	1.0896	1.0894
O6	1.2263	2.4383	3.5132	4.8886	2.7828		2.0280	3.0857	3.7695	3.5323	5.6827	5.1071	5.2262	2.8075	2.6383	3.8607
H7	1.1004	2.2106	2.7291	4.1406	3.4967	2.0280		2.5324	2.3947	3.1107	4.7663	4.7717	4.3022	3.7835	3.7536	4.3533
H8	2.1197	1.0969	2.1568	2.7542	2.1736	3.0857	2.5324		2.5181	3.0531	3.7483	3.1299	2.5405	3.0725	2.5347	2.5063
H9	2.6289	2.1704	1.0945	2.1628	3.5034	3.7695	2.3947	2.5181		1.7628	2.4780	3.0752	2.5212	3.7503	4.3173	3.8798
H10	2.7766	2.1640	1.0933	2.1754	2.7653	3.5323	3.1107	3.0531	1.7628		2.5229	2.5192	3.0792	2.5387	3.7495	3.1515
H11	4.6641	3.5235	2.1805	1.0914	4.1626	5.6827	4.7663	3.7483	2.4780	2.5229		1.7667	1.7704	4.3518	5.1931	3.8926
H12	4.2852	2.8628	2.1876	1.0900	2.8882	5.1071	4.7717	3.1299	3.0752	2.5192	1.7667		1.7706	3.1711	3.8924	2.3155
H13	4.1456	2.8157	2.1790	1.0921	3.5482	5.2262	4.3022	2.5405	2.5212	3.0792	1.7704	1.7706		4.1675	4.3787	3.1858
H14	2.7799	2.1653	2.7978	3.5344	1.0910	2.8075	3.7835	3.0725	3.7503	2.5387	4.3518	3.1711	4.1675		1.7621	1.7743
H15	2.7049	2.1718	3.5168	4.1691	1.0896	2.6383	3.7536	2.5347	4.3173	3.7495	5.1931	3.8924	4.3787	1.7621		1.7716
H16	3.4609	2.1818	2.8679	2.8949	1.0894	3.8607	4.3533	2.5063	3.8798	3.1515	3.8926	2.3155	3.1858	1.7743	1.7716

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	108.593	C1	C2	C5	110.041
C1	C2	H8	107.017	C2	C1	O6	124.783
C2	C1	H7	114.019	C2	C3	C4	112.986
C2	C3	H9	108.990	C2	C3	H10	108.564
C2	C5	H14	109.741	C2	C5	H15	110.339
C2	C5	H16	111.147	C3	C2	C5	113.124
C3	C2	H8	107.804	C3	C4	H11	110.426
C3	C4	H12	111.077	C3	C4	H13	110.267
C4	C3	H9	108.865	C4	C3	H10	109.914
C5	C2	H8	110.050	O6	C1	H7	121.197
H9	C3	H10	107.365	H11	C4	H12	108.169
H11	C4	H13	108.351	H12	C4	H13	108.468
H14	C5	H15	107.816	H14	C5	H16	108.930
H15	C5	H16	108.792

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

using model chemistry: CISD/3-21G*

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: CISD/3-21G*

States and conformations

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