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

State	Conformation	minimum conformation	conformer description	state description
1	1	yes	CS trans	¹A^'
1	2	no	CS cis	¹A^'

	hartrees
Energy at 0K	-191.686308
Energy at 298.15K
HF Energy	-190.831145
Nuclear repulsion energy	103.078718

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A'	3242	3242
2	A'	3197	3197
3	A'	3140	3140
4	A'	2919	2919
5	A'	1767	1767
6	A'	1660	1660
7	A'	1448	1448
8	A'	1398	1398
9	A'	1291	1291
10	A'	1175	1175
11	A'	923	923
12	A'	566	566
13	A'	288	288
14	A"	1026	1026
15	A"	1016	1016
16	A"	977	977
17	A"	609	609
18	A"	164	164

Atom	x (Å)	y (Å)
C1	-0.153	-0.744
C2	0.000	0.722
C3	1.219	1.276
O4	-1.220	-1.316
H5	0.798	-1.312
H6	-0.910	1.311
H7	1.365	2.348
H8	2.108	0.655

	C1	C2	C3	O4	H5	H6	H7	H8
C1		1.4733	2.4417	1.2115	1.1073	2.1892	3.4438	2.6582
C2	1.4733		1.3394	2.3753	2.1847	1.0836	2.1230	2.1091
C3	2.4417	1.3394		3.5597	2.6225	2.1292	1.0814	1.0844
O4	1.2115	2.3753	3.5597		2.0178	2.6449	4.4842	3.8681
H5	1.1073	2.1847	2.6225	2.0178		3.1293	3.7037	2.3635
H6	2.1892	1.0836	2.1292	2.6449	3.1293		2.5000	3.0881
H7	3.4438	2.1230	1.0814	4.4842	3.7037	2.5000		1.8488
H8	2.6582	2.1091	1.0844	3.8681	2.3635	3.0881	1.8488

All results from a given calculation for CH₂CHCHO (Acrolein)

using model chemistry: CCSD(T)=FULL/6-311+G(3df,2p)

States and conformations

Conformer 1 (CS trans)

Conformer 2 (CS cis)

	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

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	120.398	C1	C2	H6	116.964
C2	C1	O4	124.149	C2	C1	H5	114.949
C2	C3	H7	122.197	C2	C3	H8	120.586
C3	C2	H6	122.638	O4	C1	H5	120.903
H7	C3	H8	117.217

	hartrees
Energy at 0K	-191.683004
Energy at 298.15K
HF Energy	-190.827155
Nuclear repulsion energy	104.627177

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A'	3258	3258
2	A'	3185	3185
3	A'	3158	3158
4	A'	2957	2957
5	A'	1767	1767
6	A'	1661	1661
7	A'	1440	1440
8	A'	1430	1430
9	A'	1307	1307
10	A'	1067	1067
11	A'	938	938
12	A'	677	677
13	A'	285	285
14	A"	1023	1023
15	A"	1011	1011
16	A"	988	988
17	A"	556	556
18	A"	137	137

Atom	x (Å)	y (Å)
C1	-0.891	-0.289
C2	0.000	0.898
C3	1.333	0.769
O4	-0.496	-1.435
H5	-1.975	-0.076
H6	-0.474	1.873
H7	1.987	1.630
H8	1.782	-0.217

	C1	C2	C3	O4	H5	H6	H7	H8
C1		1.4845	2.4627	1.2118	1.1046	2.2024	3.4595	2.6738
C2	1.4845		1.3388	2.3847	2.2021	1.0844	2.1175	2.1017
C3	2.4627	1.3388		2.8633	3.4138	2.1173	1.0819	1.0832
O4	1.2118	2.3847	2.8633		2.0086	3.3080	3.9444	2.5826
H5	1.1046	2.2021	3.4138	2.0086		2.4604	4.3137	3.7593
H6	2.2024	1.0844	2.1173	3.3080	2.4604		2.4725	3.0750
H7	3.4595	2.1175	1.0819	3.9444	4.3137	2.4725		1.8587
H8	2.6738	2.1017	1.0832	2.5826	3.7593	3.0750	1.8587

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	121.365	C1	C2	H6	117.196
C2	C1	O4	124.055	C2	C1	H5	115.764
C2	C3	H7	121.673	C2	C3	H8	120.024
C3	C2	H6	121.440	O4	C1	H5	120.180
H7	C3	H8	118.304

All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: CCSD(T)=FULL/6-311+G(3df,2p)

States and conformations

Conformer 1 (CS trans)

Conformer 2 (CS cis)

All results from a given calculation for CH₂CHCHO (Acrolein)