Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where James C. Barborak is active.

Publication


Featured researches published by James C. Barborak.


Journal of the American Chemical Society | 2011

Preparation and characterization of conjugated polymers made by postpolymerization reactions of alternating polyketones.

Chen Cheng; Damien Guironnet; James C. Barborak; Maurice Brookhart

Conjugated polymers possessing a poly(2,5-dimethylene-2,5-dihydrofuran) backbone were prepared through postpolymerization reaction of styrenic polyketones with bromine in one-pot reactions. The modification is proposed to proceed via condensation of two repeating units to form a fully characterized polymer with a poly(2,5-dimethylenetetrahydrofuran) backbone. Subsequent bromination and elimination of HBr yield a polymer with a fully conjugated carbon backbone. The new conjugated polymers were characterized by NMR, IR, and UV-vis spectroscopies and by CV. These polymers have strong absorption in the visible region, with the absorption peaks shifted to the NIR region upon doping with acids. The ease of the synthesis of the starting polyketone and of the modifications allows large-scale preparation of those conjugated polymers.


Magnetic Resonance in Chemistry | 2000

Correlated rotation in a conformationally restricted amide

Eric R. Johnston; Robin Fortt; James C. Barborak

Dynamic two‐dimensional 1H and 13C NMR studies of the conformationally restricted amide N‐(1‐naphthoyl)‐cis‐2,6‐dimethylpiperidine reveal correlated rotation about the aryl–CO and amide bonds. The naphthalene and piperidine rings are tightly meshed and their rotation is virtually entirely (>99%) concerted, as evidenced by separate NMR measurement of the much slower rates of rotation about the individual aryl–CO and amide bonds. A disrotatory cogwheeling mechanism for the concerted rotation is proposed. Copyright


Journal of the American Chemical Society | 1992

Palladium(II) catalysts for living alternating copolymerization of olefins and carbon monoxide

Maurice Brookhart; Francis C. Rix; Joseph M. DeSimone; James C. Barborak


Journal of the American Chemical Society | 1966

A Convenient Synthesis of the Cubane System

James C. Barborak; L. Watts; R. Pettit


Journal of the American Chemical Society | 1971

Thermal bicyclo[6.1.0]nonatrienyl chloride-dihydroindenyl chloride rearrangement

Paul von Ragué Schleyer; James C. Barborak; Tah Mun Su; Gernot Boche; G. Schneider


Journal of the American Chemical Society | 1967

Stereospecific rearrangements in the homocubyl cation

James C. Barborak; R. Pettit


Journal of Organic Chemistry | 1979

Correlation of structure and transannular interactions in a series of cage compounds

James C. Barborak; Diana Khoury; Wilhelm F. Maier; Paul von Ragué Schleyer; Edward C. R. Smith; William F. Smith; Christopher Wyrick


Journal of the American Chemical Society | 1995

Site-selective photochemistry in an alternating 2-norbornyl-CO copolymer: Importance of stereoelectronic effects

Malcolm D. E. Forbes; Shiyamalie R. Ruberu; Dana Nachtigallova; Kenneth D. Jordan; James C. Barborak


Journal of the American Chemical Society | 1969

Degenerate Rearrangements of the 9-Barbaralyl Cation

James C. Barborak; J. Daub; D. M. Follweiler; P. Von Rague Schleyer


Dalton Transactions | 2009

Palladium(II)-catalyzed copolymerization of styrenes with carbon monoxide: mechanism of chain propagation and chain transfer

Francis C. Rix; Michael J. Rachita; Mark I. Wagner; Maurice Brookhart; Barbara Milani; James C. Barborak

Collaboration


Dive into the James C. Barborak's collaboration.

Top Co-Authors

Avatar

Paul von Ragué Schleyer

University of Erlangen-Nuremberg

View shared research outputs
Top Co-Authors

Avatar

P. Von R. Schleyer

Lawrence Berkeley National Laboratory

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Maurice Brookhart

University of North Carolina at Chapel Hill

View shared research outputs
Top Co-Authors

Avatar

Francis C. Rix

University of North Carolina at Chapel Hill

View shared research outputs
Top Co-Authors

Avatar

J. Daub

Princeton University

View shared research outputs
Top Co-Authors

Avatar

James W. Herndon

New Mexico State University

View shared research outputs
Top Co-Authors

Avatar

R. Pettit

University of Texas at Austin

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge