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	-307.500957
Energy at 298.15K	-307.510600
Nuclear repulsion energy	250.363325

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3259	3094	0.82
2	A₁	3198	3036	22.45
3	A₁	3057	2902	7.40
4	A₁	1748	1659	241.58
5	A₁	1554	1475	1.11
6	A₁	1513	1436	13.86
7	A₁	1449	1376	9.84
8	A₁	1262	1198	3.51
9	A₁	1217	1155	1.17
10	A₁	919	872	40.57
11	A₁	514	488	0.24
12	A₁	290	276	4.41
13	A₂	3124	2966	0.00
14	A₂	1531	1454	0.00
15	A₂	1196	1136	0.00
16	A₂	687	652	0.00
17	A₂	314	298	0.00
18	A₂	139	132	0.00
19	B₁	3125	2966	74.47
20	B₁	1531	1453	14.40
21	B₁	1201	1140	1.60
22	B₁	730	693	97.87
23	B₁	687	652	0.47
24	B₁	335	318	0.02
25	B₁	105	100	9.14
26	B₂	3341	3172	5.17
27	B₂	3198	3036	17.38
28	B₂	3056	2901	62.77
29	B₂	1546	1468	29.80
30	B₂	1525	1447	50.64
31	B₂	1396	1325	498.65
32	B₂	1242	1179	9.88
33	B₂	1110	1054	93.33
34	B₂	973	924	0.62
35	B₂	568	539	0.17
36	B₂	407	386	7.53

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	1.409
C2	0.000	0.000	0.069
H3	0.000	0.921	1.969
H4	0.000	-0.921	1.969
O5	0.000	1.076	-0.736
O6	0.000	-1.076	-0.736
C7	0.000	2.334	-0.107
C8	0.000	-2.334	-0.107
H9	0.000	3.072	-0.907
H10	0.000	-3.072	-0.907
H11	-0.892	2.466	0.515
H12	0.892	2.466	0.515
H13	0.892	-2.466	0.515
H14	-0.892	-2.466	0.515

	C1	C2	H3	H4	O5	O6	C7	C8	H9	H10	H11	H12	H13	H14
C1		1.3400	1.0786	1.0786	2.3990	2.3990	2.7831	2.7831	3.8471	3.8471	2.7701	2.7701	2.7701	2.7701
C2	1.3400		2.1122	2.1122	1.3433	1.3433	2.3411	2.3411	3.2233	3.2233	2.6597	2.6597	2.6597	2.6597
H3	1.0786	2.1122		1.8429	2.7093	3.3624	2.5112	3.8614	3.5915	4.9215	2.3012	2.3012	3.7925	3.7925
H4	1.0786	2.1122	1.8429		3.3624	2.7093	3.8614	2.5112	4.9215	3.5915	3.7925	3.7925	2.3012	2.3012
O5	2.3990	1.3433	2.7093	3.3624		2.1518	1.4070	3.4679	2.0035	4.1515	2.0714	2.0714	3.8602	3.8602
O6	2.3990	1.3433	3.3624	2.7093	2.1518		3.4679	1.4070	4.1515	2.0035	3.8602	3.8602	2.0714	2.0714
C7	2.7831	2.3411	2.5112	3.8614	1.4070	3.4679		4.6690	1.0884	5.4655	1.0951	1.0951	4.9216	4.9216
C8	2.7831	2.3411	3.8614	2.5112	3.4679	1.4070	4.6690		5.4655	1.0884	4.9216	4.9216	1.0951	1.0951
H9	3.8471	3.2233	3.5915	4.9215	2.0035	4.1515	1.0884	5.4655		6.1441	1.7848	1.7848	5.7864	5.7864
H10	3.8471	3.2233	4.9215	3.5915	4.1515	2.0035	5.4655	1.0884	6.1441		5.7864	5.7864	1.7848	1.7848
H11	2.7701	2.6597	2.3012	3.7925	2.0714	3.8602	1.0951	4.9216	1.7848	5.7864		1.7842	5.2439	4.9311
H12	2.7701	2.6597	2.3012	3.7925	2.0714	3.8602	1.0951	4.9216	1.7848	5.7864	1.7842		4.9311	5.2439
H13	2.7701	2.6597	3.7925	2.3012	3.8602	2.0714	4.9216	1.0951	5.7864	1.7848	5.2439	4.9311		1.7842
H14	2.7701	2.6597	3.7925	2.3012	3.8602	2.0714	4.9216	1.0951	5.7864	1.7848	4.9311	5.2439	1.7842

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	O5	126.780	C1	C2	O6	126.780
C2	C1	H3	121.320	C2	C1	H4	121.320
C2	O5	C7	116.665	C2	O6	C8	116.665
H3	C1	H4	117.360	O5	C2	O6	106.440
O5	C7	H9	106.104	O5	C7	H11	111.144
O5	C7	H12	111.144	O6	C8	H10	106.104
O6	C8	H13	111.144	O6	C8	H14	111.144
H9	C7	H11	109.646	H9	C7	H12	109.646
H10	C8	H13	109.646	H10	C8	H14	109.646
H11	C7	H12	109.109	H13	C8	H14	109.109

All results from a given calculation for C₄H₈O₂ (Ethene, 1,1-dimethoxy-)

using model chemistry: B1B95/6-31G*

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

Number	Element	Mulliken
1	C	-0.544
2	C	0.633
3	H	0.160
4	H	0.160
5	O	-0.471
6	O	-0.471
7	C	-0.260
8	C	-0.260
9	H	0.188
10	H	0.188
11	H	0.169
12	H	0.169
13	H	0.169
14	H	0.169

<r²>	184.542
(<r²>)^1/2	13.585

All results from a given calculation for C4H8O2 (Ethene, 1,1-dimethoxy-)

using model chemistry: B1B95/6-31G*

States and conformations

All results from a given calculation for C₄H₈O₂ (Ethene, 1,1-dimethoxy-)