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	-267.951792
Energy at 298.15K	-267.961138
Nuclear repulsion energy	193.030917

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3496	3338	11.44
2	A	3180	3036	9.29
3	A	3172	3028	14.35
4	A	3167	3024	33.04
5	A	3157	3014	6.75
6	A	3097	2957	16.17
7	A	3086	2946	9.32
8	A	3082	2942	10.26
9	A	1583	1511	13.24
10	A	1561	1490	1.78
11	A	1554	1484	6.97
12	A	1544	1474	3.91
13	A	1460	1394	14.89
14	A	1439	1374	25.23
15	A	1418	1353	12.91
16	A	1370	1308	1.78
17	A	1320	1260	71.24
18	A	1234	1178	18.68
19	A	1185	1131	24.14
20	A	1164	1112	12.89
21	A	1030	983	1.92
22	A	995	950	1.94
23	A	968	924	1.05
24	A	917	876	3.61
25	A	828	791	1.84
26	A	486	464	7.47
27	A	453	433	3.45
28	A	350	334	2.77
29	A	282	269	5.00
30	A	267	255	7.88
31	A	217	207	22.12
32	A	202	192	113.71
33	A	141	135	12.06

Atom	x (Å)	y (Å)	z (Å)
O1	-1.910	-0.160	-0.207
H2	-2.374	-0.049	0.667
O3	-0.627	-0.753	0.319
C4	1.704	-0.717	0.026
H5	1.830	-0.697	1.113
H6	1.651	-1.758	-0.303
H7	2.568	-0.235	-0.440
C8	0.403	1.467	0.125
H9	0.604	1.501	1.200
H10	1.156	2.063	-0.399
H11	-0.587	1.884	-0.070
C12	0.426	0.022	-0.355
H13	0.253	-0.030	-1.434

	O1	H2	O3	C4	H5	H6	H7	C8	H9	H10	H11	C12	H13
O1		0.9964	1.5089	3.6649	4.0027	3.9045	4.4850	2.8474	3.3260	3.7922	2.4393	2.3481	2.4905
H2	0.9964		1.9162	4.1825	4.2772	4.4793	5.0683	3.2101	3.3995	4.2497	2.7342	2.9819	3.3646
O3	1.5089	1.9162		2.3493	2.5822	2.5657	3.3239	2.4543	2.7149	3.4087	2.6660	1.4704	2.0903
C4	3.6649	4.1825	2.3493		1.0939	1.0928	1.0936	2.5443	2.7404	2.8652	3.4683	1.5252	2.1708
H5	4.0027	4.2772	2.5822	1.0939		1.7782	1.7805	2.7740	2.5183	3.2177	3.7289	2.1547	3.0692
H6	3.9045	4.4793	2.5657	1.0928	1.7782		1.7830	3.4841	3.7385	3.8537	4.2814	2.1616	2.4940
H7	4.4850	5.0683	3.3239	1.0936	1.7805	1.7830		2.8112	3.0924	2.6971	3.8189	2.1590	2.5277
C8	2.8474	3.2101	2.4543	2.5443	2.7740	3.4841	2.8112		1.0948	1.0938	1.0919	1.5221	2.1664
H9	3.3260	3.3995	2.7149	2.7404	2.5183	3.7385	3.0924	1.0948		1.7823	1.7828	2.1533	3.0673
H10	3.7922	4.2497	3.4087	2.8652	3.2177	3.8537	2.6971	1.0938	1.7823		1.7829	2.1675	2.5036
H11	2.4393	2.7342	2.6660	3.4683	3.7289	4.2814	3.8189	1.0919	1.7828	1.7829		2.1390	2.4967
C12	2.3481	2.9819	1.4704	1.5252	2.1547	2.1616	2.1590	1.5221	2.1533	2.1675	2.1390		1.0946
H13	2.4905	3.3646	2.0903	2.1708	3.0692	2.4940	2.5277	2.1664	3.0673	2.5036	2.4967	1.0946

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
O1	O3	C12	104.019	H2	O1	O3	97.693
O3	C12	C4	103.283	O3	C12	C8	110.183
O3	C12	H13	108.268	C4	C12	C8	113.215
C4	C12	H13	110.841	H5	C4	H6	108.816
H5	C4	H7	108.957	H5	C4	C12	109.602
H6	C4	H7	109.269	H6	C4	C12	110.210
H7	C4	C12	109.960	C8	C12	H13	110.712
H9	C8	H10	109.054	H9	C8	H11	109.237
H9	C8	C12	109.657	H10	C8	H11	109.319
H10	C8	C12	110.844	H11	C8	C12	108.707

All results from a given calculation for C₃H₈O₂ (Hydroperoxide, 1-methylethyl)

using model chemistry: mPW1PW91/3-21G

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	O	-0.366
2	H	0.376
3	O	-0.303
4	C	-0.632
5	H	0.226
6	H	0.236
7	H	0.220
8	C	-0.634
9	H	0.214
10	H	0.209
11	H	0.231
12	C	-0.012
13	H	0.233

	x	y	z	Total
	0.543	1.097	0.801	1.463
CHELPG
AIM
ESP

	x	y	z
x	0.000	0.000	0.000
y	0.000	0.000	0.000
z	0.000	0.000	0.000

<r²>	133.115
(<r²>)^1/2	11.538

All results from a given calculation for C3H8O2 (Hydroperoxide, 1-methylethyl)

using model chemistry: mPW1PW91/3-21G

States and conformations

All results from a given calculation for C₃H₈O₂ (Hydroperoxide, 1-methylethyl)