Douglas J. DeFrees - Concepedia

Concepedia

Author

Douglas J. DeFrees

IBM Research - Almaden

Also Known As

Douglas DeFrees, Douglas J. DeFrees, Douglas J. Defrees

23

Publications

9.2K

Citations

17

H-Index

50

Concepts

All Affiliations

IBM Research - Almaden Carnegie Mellon University

DJ

About

Douglas J. DeFrees is an author at IBM Research - Almaden specializing in chemistry, natural sciences, and engineering.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Engineering	13	13	9K
2	Natural Sciences	13	13	8.9K
3	Arts	1	1	82
4	Public Health	1	1	42
5	Applied Physics	1	1	8.1K

Douglas J. DeFrees

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16

Publications

9.2K

Citations

16

H-Index

	Year	Citations
Self-consistent molecular orbital methods. XXIII. A polarization-type basis set for second-row elements Michelle Francl, William J. Pietro, Warren J. Hehre, The Journal of Chemical Physics Large DeviationsEngineeringTheoretical Inorganic ChemistryComputational ChemistryChemistry	1982	8.1K
Effect of electron correlation on theoretical equilibrium geometries Douglas J. DeFrees, Beverly A. Levi, Steven K. Pollack, Journal of the American Chemical Society Electron DensityElectron CorrelationEngineeringPhysicsPhysicochemical Analysis	1979	210
Heats of formation of gaseous free radicals via ion cyclotron double resonance spectroscopy Douglas J. DeFrees, Robert T. McIver, Warren J. Hehre Journal of the American Chemical Society Radical EmissionEngineeringAltmetric Attention ScoreBibliometricsOrganic Chemistry	1980	149
Structures of C4 Robert A. Whiteside, R. Krishnan, Douglas J. DeFrees, Chemical Physics Letters Crystal StructureCrystallographyStructure ElucidationLinear Chain Compound	1981	124
Effect of electron correlation of theoretical equilibrium geometries. 2. Comparison of third-order perturbation and configuration interaction results with experiment Douglas J. DeFrees, Krishnan Raghavachari, H. Bernhard Schlegel, Journal of the American Chemical Society Electron CorrelationExperimental Nuclear PhysicsEngineeringPhysicsElectron Spectroscopy	1982	122
Theoretical approach to substituent effects. Structures and stabilities of carbanions XCH2 Addy Pross, Douglas J. DeFrees, Beverly A. Levi, The Journal of Organic Chemistry Quantitative MethodsEngineeringAltmetric Attention ScoreBibliometricsOrganic Chemistry	1981	82
Molecular orbital theory of the properties of inorganic and organometallic compounds. 2. STO-NG basis sets for fourth-row main-group elements William J. Pietro, Edward S. Blurock, Robert F. Hout, Inorganic Chemistry Materials ScienceInorganic ChemistryChemical EngineeringOrganometallic CompoundsEngineering	1981	67
The C4H7+ cation. A theoretical investigation Wolfram Koch, Bowen Liu, Douglas J. DeFrees Journal of the American Chemical Society Stable IsomersEngineeringPhysicsBiochemistryElectronic Correlation	1988	65
In support of anionic hyperconjugation. The versatile methyl group Douglas J. DeFrees, John E. Bartmess, Jhong K. Kim, Journal of the American Chemical Society Chemical BiologyChemical MeasurementEngineeringChemical AnalysisBiochemistry	1977	48
The proton affinities of phenol Douglas J. DeFrees, Robert T. McIver, Warren J. Hehre Journal of the American Chemical Society EngineeringChemical AnalysisProton-coupled Electron TransferAltmetric Attention ScoreBibliometrics	1977	48

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