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	-414.829217
Energy at 298.15K	-414.836265
HF Energy	-414.829217
Nuclear repulsion energy	357.859770

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3686	3520	110.30
2	A'	3646	3482	69.43
3	A'	3282	3134	1.78
4	A'	3240	3094	2.29
5	A'	1855	1772	604.89
6	A'	1824	1742	863.61
7	A'	1715	1637	86.07
8	A'	1527	1458	116.67
9	A'	1440	1375	19.51
10	A'	1434	1370	118.40
11	A'	1407	1343	29.49
12	A'	1250	1194	4.27
13	A'	1221	1166	116.45
14	A'	1109	1059	7.50
15	A'	1003	957	7.20
16	A'	983	939	9.47
17	A'	782	747	3.75
18	A'	570	545	3.66
19	A'	555	530	8.11
20	A'	529	505	20.30
21	A'	397	379	22.33
22	A"	962	919	0.77
23	A"	807	771	66.22
24	A"	764	729	45.54
25	A"	726	694	11.64
26	A"	669	639	93.04
27	A"	562	537	41.55
28	A"	387	369	24.92
29	A"	160	152	0.05
30	A"	145	138	1.39

Atom	x (Å)	y (Å)
C1	1.265	0.392
C2	1.231	-1.062
N3	0.000	0.989
C4	0.056	-1.701
O5	2.263	1.078
N6	-1.133	-1.021
C7	-1.222	0.358
O8	-2.281	0.943
H9	2.172	-1.589
H10	-0.029	1.998
H11	-0.026	-2.779
H12	-2.015	-1.505

	C1	C2	N3	C4	O5	N6	C7	O8	H9	H10	H11	H12
C1		1.4539	1.3984	2.4166	1.2111	2.7831	2.4870	3.5876	2.1787	2.0626	3.4230	3.7887
C2	1.4539		2.3919	1.3382	2.3751	2.3652	2.8350	4.0439	1.0780	3.3094	2.1281	3.2767
N3	1.3984	2.3919		2.6900	2.2643	2.3073	1.3753	2.2810	3.3707	1.0096	3.7676	3.2064
C4	2.4166	1.3382	2.6900		3.5483	1.3696	2.4233	3.5279	2.1189	3.6997	1.0811	2.0799
O5	1.2111	2.3751	2.2643	3.5483		3.9921	3.5584	4.5451	2.6685	2.4698	4.4844	4.9970
N6	2.7831	2.3652	2.3073	1.3696	3.9921		1.3820	2.2743	3.3535	3.2144	2.0776	1.0060
C7	2.4870	2.8350	1.3753	2.4233	3.5584	1.3820		1.2090	3.9129	2.0278	3.3573	2.0251
O8	3.5876	4.0439	2.2810	3.5279	4.5451	2.2743	1.2090		5.1218	2.4861	4.3513	2.4625
H9	2.1787	1.0780	3.3707	2.1189	2.6685	3.3535	3.9129	5.1218		4.2085	2.4989	4.1875
H10	2.0626	3.3094	1.0096	3.6997	2.4698	3.2144	2.0278	2.4861	4.2085		4.7767	4.0269
H11	3.4230	2.1281	3.7676	1.0811	4.4844	2.0776	3.3573	4.3513	2.4989	4.7767		2.3619
H12	3.7887	3.2767	3.2064	2.0799	4.9970	1.0060	2.0251	2.4625	4.1875	4.0269	2.3619

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	119.820	C1	C2	H9	117.985
C1	N3	C7	127.438	C1	N3	H10	116.942
C2	C1	N3	113.971	C2	C1	O5	125.809
C2	C4	N6	121.725	C2	C4	H11	122.844
N3	C1	O5	120.220	N3	C7	N6	113.599
N3	C7	O8	123.792	C4	C2	H9	122.195
C4	N6	C7	123.446	C4	N6	H12	121.462
N6	C4	H11	115.431	N6	C7	O8	122.609
C7	N3	H10	115.620	C7	N6	H12	115.092

All results from a given calculation for C₄H₄N₂O₂ (Uracil)

using model chemistry: wB97X-D/TZVP

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	0.216
2	C	-0.210
3	N	-0.250
4	C	-0.008
5	O	-0.338
6	N	-0.235
7	C	0.291
8	O	-0.367
9	H	0.180
10	H	0.293
11	H	0.142
12	H	0.286

	x	y	z	Total
	-1.175	-4.363	0.000	4.519
CHELPG
AIM
ESP

	x	y	z
x	12.710	0.489	0.000
y	0.489	9.845	0.000
z	0.000	0.000	5.109

<r²>	230.972
(<r²>)^1/2	15.198

All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: wB97X-D/TZVP

States and conformations

All results from a given calculation for C₄H₄N₂O₂ (Uracil)