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Robert D. Zehr

North Dakota State University

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Publication

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Journal of The Chemical Society D: Chemical Communications | 1971

Solvent effects on intersystem crossing in the photocyclization of methyl o-benzyloxyphenylglyoxylate

S. Peter Pappas; Robert D. Zehr; James E. Alexander; George L. Long

Solvent effects on the quantum yield of the phototransformation (1)→(2) may be attributed, in part, to diminished intersystem crossing efficiency with increasing solvent polarity.

Journal of the American Chemical Society | 1970

Photochemistry of o-benzyloxyphenylglyoxylates. A case of favored intramolecular hydrogen abstraction via a seven-membered cyclic transition state

Socrates P. Pappas; James E. Alexander; Robert D. Zehr

Journal of the American Chemical Society | 1971

Heavy-atom effects on the stereochemistry of photoabstraction-cyclization in a carbonyl system

S. Peter Pappas; Robert D. Zehr

Journal of Organic Chemistry | 1979

Structures of some Kepone photoproducts and related chlorinated pentacyclodecanes by carbon-13 and proton nuclear magnetic resonance

Nancy K. Wilson; Robert D. Zehr

Journal of Heterocyclic Chemistry | 1970

On vicinal H-H coupling constants in 3-hydroxy-2,3-dihydrobenzofuran derivatives

S. Peter Pappas; Robert D. Zehr; James E. Alexander

Journal of Organic Chemistry | 1982

Substituent parameter analysis of the carbon-13 nuclear magnetic resonance chemical shifts 4-substituted p-terphenyls

Nancy K. Wilson; Robert D. Zehr

ChemInform | 1978

Substituent effects and additivity in the carbon-13 nuclear magnetic resonance spectra of chlorinated naphthalenes and their chlorinated naphthol metabolites

Nancy K. Wilson; Robert D. Zehr

Journal of Organic Chemistry | 1972

Vinylogous Fries and photo-Fries rearrangements

S. Peter Pappas; James E. Alexander; George L. Long; Robert D. Zehr

ChemInform | 1972

UNTERSUCHUNGEN VINYLOGER FRIESSCHER UND PHOTO-FRIESSCHER UMLAGERUNGEN

S. P. Pappas; James E. Alexander; G. L. Long; Robert D. Zehr

ChemInform | 1972

SCHWERATOM-EINFLUSS AUF DIE STEREOCHEMIE VON PHOTOABSPALTUNG-CYCLISIERUNG IN EINEM CARBONYL-SYST.

S. Peter Pappas; Robert D. Zehr

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James E. Alexander

North Dakota State University

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S. Peter Pappas

North Dakota State University

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Nancy K. Wilson

Research Triangle Park

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