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	-271.128467
Energy at 298.15K	-271.139357
HF Energy	-270.050117
Nuclear repulsion energy	241.557348

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3226	3032	12.19
2	A	3219	3026	10.49
3	A	3218	3025	17.11
4	A	3208	3015	16.89
5	A	3154	2965	13.19
6	A	3125	2937	9.91
7	A	3118	2930	14.33
8	A	3100	2914	17.91
9	A	3080	2894	10.31
10	A	2946	2769	102.80
11	A	1797	1689	106.14
12	A	1553	1459	3.48
13	A	1544	1452	7.27
14	A	1537	1445	8.12
15	A	1534	1442	7.50
16	A	1521	1429	0.21
17	A	1454	1366	7.48
18	A	1441	1354	2.47
19	A	1428	1342	4.50
20	A	1398	1314	5.70
21	A	1389	1306	1.31
22	A	1336	1256	1.65
23	A	1293	1216	0.90
24	A	1217	1144	2.37
25	A	1197	1125	2.42
26	A	1140	1071	2.90
27	A	1078	1013	0.27
28	A	1044	981	12.92
29	A	997	937	7.35
30	A	964	906	6.86
31	A	941	884	12.22
32	A	818	769	4.62
33	A	798	750	2.75
34	A	677	636	8.05
35	A	413	388	0.80
36	A	392	368	0.45
37	A	304	286	3.63
38	A	273	257	0.40
39	A	244	230	3.52
40	A	215	202	0.33
41	A	100	94	2.47
42	A	79	75	2.94

Atom	x (Å)	y (Å)	z (Å)
C1	-1.360	-0.684	0.241
C2	-0.079	0.080	0.429
C3	1.028	-0.686	-0.299
C4	2.420	-0.144	-0.011
C5	-0.227	1.514	-0.042
O6	-2.356	-0.252	-0.293
H7	-1.330	-1.725	0.622
H8	0.146	0.048	1.502
H9	0.986	-1.739	-0.007
H10	0.828	-0.652	-1.373
H11	3.181	-0.749	-0.503
H12	2.533	0.878	-0.366
H13	2.625	-0.154	1.059
H14	-0.411	1.540	-1.115
H15	-1.073	1.995	0.445
H16	0.667	2.095	0.172

	C1	C2	C3	C4	C5	O6	H7	H8	H9	H10	H11	H12	H13	H14	H15	H16
C1		1.5030	2.4485	3.8265	2.4882	1.2100	1.1097	2.0959	2.5847	2.7187	4.6019	4.2377	4.1021	2.7721	2.7014	3.4401
C2	1.5030		1.5312	2.5477	1.5158	2.4114	2.2048	1.0968	2.1530	2.1462	3.4908	2.8442	2.7864	2.1507	2.1570	2.1638
C3	2.4485	1.5312		1.5211	2.5458	3.4119	2.7365	2.1356	1.0930	1.0927	2.1633	2.1714	2.1626	2.7741	3.4867	2.8439
C4	3.8265	2.5477	1.5211		3.1234	4.7853	4.1184	2.7382	2.1442	2.1556	1.0891	1.0879	1.0899	3.4744	4.1212	2.8495
C5	2.4882	1.5158	2.5458	3.1234		2.7769	3.4853	2.1613	3.4715	2.7523	4.1164	2.8501	3.4822	1.0890	1.0882	1.0878
O6	1.2100	2.4114	3.4119	4.7853	2.7769		2.0158	3.0939	3.6694	3.3854	5.5631	5.0177	5.1619	2.7689	2.6900	3.8551
H7	1.1097	2.2048	2.7365	4.1184	3.4853	2.0158		2.4688	2.4002	3.1283	4.7504	4.7614	4.2775	3.8112	3.7331	4.3341
H8	2.0959	1.0968	2.1356	2.7382	2.1613	3.0939	2.4688		2.4850	3.0362	3.7235	3.1421	2.5261	3.0636	2.5289	2.4962
H9	2.5847	2.1530	1.0930	2.1442	3.4715	3.6694	2.4002	2.4850		1.7522	2.4581	3.0607	2.5164	3.7328	4.2878	3.8512
H10	2.7187	2.1462	1.0927	2.1556	2.7523	3.3854	3.1283	3.0362	1.7522		2.5107	2.5026	3.0645	2.5318	3.7314	3.1560
H11	4.6019	3.4908	2.1633	1.0891	4.1164	5.5631	4.7504	3.7235	2.4581	2.5107		1.7567	1.7613	4.3033	5.1499	3.8550
H12	4.2377	2.8442	2.1714	1.0879	2.8501	5.0177	4.7614	3.1421	3.0607	2.5026	1.7567		1.7619	3.1089	3.8604	2.2911
H13	4.1021	2.7864	2.1626	1.0899	3.4822	5.1619	4.2775	2.5261	2.5164	3.0645	1.7613	1.7619		4.1006	4.3208	3.1108
H14	2.7721	2.1507	2.7741	3.4744	1.0890	2.7689	3.8112	3.0636	3.7328	2.5318	4.3033	3.1089	4.1006		1.7539	1.7683
H15	2.7014	2.1570	3.4867	4.1212	1.0882	2.6900	3.7331	2.5289	4.2878	3.7314	5.1499	3.8604	4.3208	1.7539		1.7643
H16	3.4401	2.1638	2.8439	2.8495	1.0878	3.8551	4.3341	2.4962	3.8512	3.1560	3.8550	2.2911	3.1108	1.7683	1.7643

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	107.596	C1	C2	C5	111.023
C1	C2	H8	106.399	C2	C1	O6	125.104
C2	C1	H7	114.264	C2	C3	C4	113.166
C2	C3	H9	109.113	C2	C3	H10	108.605
C2	C5	H14	110.232	C2	C5	H15	110.791
C2	C5	H16	111.355	C3	C2	C5	113.336
C3	C2	H8	107.559	C3	C4	H11	110.871
C3	C4	H12	111.589	C3	C4	H13	110.763
C4	C3	H9	109.125	C4	C3	H10	110.038
C5	C2	H8	110.610	O6	C1	H7	120.621
H9	C3	H10	106.577	H11	C4	H12	107.598
H11	C4	H13	107.867	H12	C4	H13	107.999
H14	C5	H15	107.335	H14	C5	H16	108.654
H15	C5	H16	108.353

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

using model chemistry: MP2=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)

States and conformations

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