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	-307.365581
Energy at 298.15K	-307.376907
HF Energy	-307.365581
Nuclear repulsion energy	265.586338

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3171	3028	25.18
2	A'	3142	3000	25.07
3	A'	3129	2987	24.26
4	A'	3073	2934	19.92
5	A'	2997	2862	111.17
6	A'	2948	2815	83.11
7	A'	1514	1445	5.61
8	A'	1500	1432	1.06
9	A'	1470	1404	7.27
10	A'	1414	1350	17.20
11	A'	1324	1264	6.58
12	A'	1223	1167	152.83
13	A'	1196	1142	48.16
14	A'	1118	1068	10.59
15	A'	1020	974	39.52
16	A'	932	890	11.88
17	A'	860	822	11.68
18	A'	655	625	4.74
19	A'	494	471	0.75
20	A'	438	419	10.66
21	A'	269	257	2.24
22	A"	3140	2998	37.05
23	A"	2991	2855	19.85
24	A"	1497	1429	8.14
25	A"	1441	1376	13.56
26	A"	1392	1329	2.45
27	A"	1370	1308	0.43
28	A"	1339	1278	2.27
29	A"	1263	1205	34.31
30	A"	1234	1178	0.10
31	A"	1106	1056	67.20
32	A"	1048	1000	73.33
33	A"	932	890	25.07
34	A"	903	862	0.23
35	A"	466	444	7.29
36	A"	267	255	2.33

Atom	x (Å)	y (Å)	z (Å)
C1	-0.608	-1.214	0.000
O2	0.015	-0.759	1.163
O3	0.015	-0.759	-1.163
C4	0.015	0.652	1.237
C5	0.015	0.652	-1.237
C6	0.676	1.256	0.000
H7	-0.542	-2.302	0.000
H8	-1.670	-0.892	0.000
H9	0.553	0.924	2.149
H10	-1.018	1.031	1.329
H11	0.553	0.924	-2.149
H12	-1.018	1.031	-1.329
H13	1.739	0.996	0.000
H14	0.579	2.348	0.000

	C1	O2	O3	C4	C5	C6	H7	H8	H9	H10	H11	H12	H13	H14
C1		1.3956	1.3956	2.3232	2.3232	2.7841	1.0907	1.1093	3.2454	2.6410	3.2454	2.6410	3.2238	3.7541
O2	1.3956		2.3260	1.4123	2.7836	2.4188	2.0113	2.0512	2.0227	2.0735	3.7532	3.2374	2.7213	3.3646
O3	1.3956	2.3260		2.7836	1.4123	2.4188	2.0113	2.0512	3.7532	3.2374	2.0227	2.0735	2.7213	3.3646
C4	2.3232	1.4123	2.7836		2.4736	1.5274	3.2506	2.5978	1.0931	1.1047	3.4387	2.7917	2.1499	2.1736
C5	2.3232	2.7836	1.4123	2.4736		1.5274	3.2506	2.5978	3.4387	2.7917	1.0931	1.1047	2.1499	2.1736
C6	2.7841	2.4188	2.4188	1.5274	1.5274		3.7615	3.1807	2.1777	2.1653	2.1777	2.1653	1.0943	1.0957
H7	1.0907	2.0113	2.0113	3.2506	3.2506	3.7615		1.8061	4.0277	3.6204	4.0277	3.6204	4.0104	4.7833
H8	1.1093	2.0512	2.0512	2.5978	2.5978	3.1807	1.8061		3.5849	2.4264	3.5849	2.4264	3.8966	3.9432
H9	3.2454	2.0227	3.7532	1.0931	3.4387	2.1777	4.0277	3.5849		1.7757	4.2972	3.8174	2.4554	2.5778
H10	2.6410	2.0735	3.2374	1.1047	2.7917	2.1653	3.6204	2.4264	1.7757		3.8174	2.6575	3.0613	2.4597
H11	3.2454	3.7532	2.0227	3.4387	1.0931	2.1777	4.0277	3.5849	4.2972	3.8174		1.7757	2.4554	2.5778
H12	2.6410	3.2374	2.0735	2.7917	1.1047	2.1653	3.6204	2.4264	3.8174	2.6575	1.7757		3.0613	2.4597
H13	3.2238	2.7213	2.7213	2.1499	2.1499	1.0943	4.0104	3.8966	2.4554	3.0613	2.4554	3.0613		1.7813
H14	3.7541	3.3646	3.3646	2.1736	2.1736	1.0957	4.7833	3.9432	2.5778	2.4597	2.5778	2.4597	1.7813

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O2	C4	111.666	C1	O3	C5	111.666
O2	C1	O3	112.888	O2	C1	H7	107.359
O2	C1	H8	109.415	O2	C4	C6	110.670
O2	C4	H9	106.982	O2	C4	H10	110.344
O3	C1	H7	107.359	O3	C1	H8	109.415
O3	C5	C6	110.670	O3	C5	H11	106.982
O3	C5	H12	110.344	C4	C6	C5	108.142
C4	C6	H13	109.060	C4	C6	H14	110.842
C5	C6	H13	109.060	C5	C6	H14	110.842
C6	C4	H9	111.326	C6	C4	H10	109.659
C6	C5	H11	111.326	C6	C5	H12	109.659
H7	C1	H8	110.362	H9	C4	H10	107.793
H11	C5	H12	107.793	H13	C6	H14	108.858

All results from a given calculation for C₄H₈O₂ (1,3-Dioxane)

using model chemistry: HSEh1PBE/6-31+G**

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	0.055
2	O	-0.331
3	O	-0.331
4	C	-0.184
5	C	-0.184
6	C	-0.286
7	H	0.157
8	H	0.122
9	H	0.166
10	H	0.147
11	H	0.166
12	H	0.147
13	H	0.189
14	H	0.166

	x	y	z
x	7.423	0.396	0.000
y	0.396	8.244	0.000
z	0.000	0.000	7.888

<r²>	139.033
(<r²>)^1/2	11.791

All results from a given calculation for C4H8O2 (1,3-Dioxane)

using model chemistry: HSEh1PBE/6-31+G**

States and conformations

All results from a given calculation for C₄H₈O₂ (1,3-Dioxane)