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	-307.460683
Energy at 298.15K
HF Energy	-307.460683
Nuclear repulsion energy	242.378900

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A'	3104	3066	5.25	63.04	0.67	0.80
2	A'	3054	3017	18.60	77.75	0.68	0.81
3	A'	2992	2955	2.81	155.32	0.01	0.01
4	A'	2981	2945	18.45	10.35	0.75	0.85
5	A'	2979	2943	13.16	279.96	0.00	0.01
6	A'	1740	1719	234.11	4.58	0.23	0.38
7	A'	1465	1447	6.58	1.10	0.67	0.81
8	A'	1445	1428	2.94	11.11	0.75	0.86
9	A'	1419	1402	14.60	8.10	0.63	0.77
10	A'	1370	1354	6.07	2.97	0.68	0.81
11	A'	1348	1332	32.35	0.31	0.61	0.76
12	A'	1333	1317	23.21	2.43	0.63	0.77
13	A'	1213	1198	362.50	0.86	0.32	0.48
14	A'	1102	1088	6.39	6.49	0.11	0.19
15	A'	1034	1021	117.27	2.15	0.73	0.84
16	A'	975	964	13.32	1.07	0.13	0.23
17	A'	924	913	9.30	2.22	0.08	0.15
18	A'	829	819	7.48	7.54	0.26	0.41
19	A'	621	614	3.98	8.00	0.27	0.42
20	A'	417	412	0.80	0.36	0.62	0.77
21	A'	358	353	8.22	3.52	0.27	0.43
22	A'	188	185	5.08	0.43	0.61	0.75
23	A"	3059	3022	28.87	28.04	0.75	0.86
24	A"	3056	3019	3.38	55.63	0.75	0.86
25	A"	3016	2980	7.99	78.72	0.75	0.86
26	A"	1435	1417	6.87	8.34	0.75	0.86
27	A"	1424	1407	8.66	6.98	0.75	0.86
28	A"	1248	1233	0.84	5.84	0.75	0.86
29	A"	1135	1121	3.27	0.73	0.75	0.86
30	A"	1021	1009	4.91	0.05	0.75	0.86
31	A"	783	774	1.26	0.16	0.75	0.86
32	A"	587	580	2.78	0.86	0.75	0.86
33	A"	256	253	0.90	0.03	0.75	0.86
34	A"	152	150	4.06	0.04	0.75	0.86
35	A"	58	57	0.39	0.24	0.75	0.86
36	A"	11i	11i	0.37	0.10	0.75	0.86

Atom	x (Å)	y (Å)	z (Å)
C1	-2.319	0.040	0.000
C2	-0.917	-0.517	0.000
O3	0.000	0.488	0.000
O4	-0.624	-1.696	0.000
C5	1.389	0.064	0.000
C6	2.250	1.308	0.000
H7	-3.038	-0.784	0.000
H8	-2.475	0.673	0.884
H9	-2.475	0.673	-0.884
H10	1.565	-0.563	0.886
H11	1.565	-0.563	-0.886
H12	3.311	1.023	0.000
H13	2.059	1.922	-0.891
H14	2.059	1.922	0.891

	C1	C2	O3	O4	C5	C6	H7	H8	H9	H10	H11	H12	H13	H14
C1		1.5087	2.3617	2.4267	3.7075	4.7416	1.0935	1.0983	1.0983	4.0290	4.0290	5.7153	4.8480	4.8480
C2	1.5087		1.3604	1.2150	2.3776	3.6553	2.1377	2.1505	2.1505	2.6356	2.6356	4.5001	3.9497	3.9497
O3	2.3617	1.3604		2.2714	1.4519	2.3949	3.2933	2.6342	2.6342	2.0830	2.0830	3.3542	2.6629	2.6629
O4	2.4267	1.2150	2.2714		2.6734	4.1576	2.5810	3.1339	3.1339	2.6189	2.6189	4.7834	4.5916	4.5916
C5	3.7075	2.3776	1.4519	2.6734		1.5136	4.5069	4.0096	4.0096	1.0997	1.0997	2.1489	2.1669	2.1669
C6	4.7416	3.6553	2.3949	4.1576	1.5136		5.6867	4.8483	4.8483	2.1811	2.1811	1.0987	1.0981	1.0981
H7	1.0935	2.1377	3.2933	2.5810	4.5069	5.6867		1.7947	1.7947	4.6925	4.6925	6.6013	5.8392	5.8392
H8	1.0983	2.1505	2.6342	3.1339	4.0096	4.8483	1.7947		1.7678	4.2245	4.5803	5.8634	5.0265	4.7028
H9	1.0983	2.1505	2.6342	3.1339	4.0096	4.8483	1.7947	1.7678		4.5803	4.2245	5.8634	4.7028	5.0265
H10	4.0290	2.6356	2.0830	2.6189	1.0997	2.1811	4.6925	4.2245	4.5803		1.7723	2.5205	3.0947	2.5338
H11	4.0290	2.6356	2.0830	2.6189	1.0997	2.1811	4.6925	4.5803	4.2245	1.7723		2.5205	2.5338	3.0947
H12	5.7153	4.5001	3.3542	4.7834	2.1489	1.0987	6.6013	5.8634	5.8634	2.5205	2.5205		1.7795	1.7795
H13	4.8480	3.9497	2.6629	4.5916	2.1669	1.0981	5.8392	5.0265	4.7028	3.0947	2.5338	1.7795		1.7812
H14	4.8480	3.9497	2.6629	4.5916	2.1669	1.0981	5.8392	4.7028	5.0265	2.5338	3.0947	1.7795	1.7812

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	O3	110.695	C1	C2	O4	125.644
C2	C1	H7	109.437	C2	C1	H8	110.165
C2	C1	H9	110.165	C2	O3	C5	115.392
O3	C2	O4	123.662	O3	C5	C6	107.706
O3	C5	H10	108.651	O3	C5	H11	108.651
C5	C6	H12	109.673	C5	C6	H13	111.140
C5	C6	H14	111.140	C6	C5	H10	112.184
C6	C5	H11	112.184	H7	C1	H8	109.936
H7	C1	H9	109.936	H8	C1	H9	107.176
H10	C5	H11	107.370	H12	C6	H13	108.200
H12	C6	H14	108.200	H13	C6	H14	108.390

All results from a given calculation for C₄H₈O₂ (Ethyl acetate)

using model chemistry: PBEPBE/Def2TZVPP

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	-0.255
2	C	0.237
3	O	-0.201
4	O	-0.293
5	C	-0.004
6	C	-0.234
7	H	0.108
8	H	0.102
9	H	0.102
10	H	0.092
11	H	0.092
12	H	0.081
13	H	0.086
14	H	0.086

	x	y	z	Total
	0.317	1.984	0.000	2.009
CHELPG
AIM
ESP

	x	y	z
x	10.608	0.631	0.000
y	0.631	8.849	0.000
z	0.000	0.000	6.911

<r²>	203.198
(<r²>)^1/2	14.255

All results from a given calculation for C4H8O2 (Ethyl acetate)

using model chemistry: PBEPBE/Def2TZVPP

States and conformations

All results from a given calculation for C₄H₈O₂ (Ethyl acetate)