Models for intramolecular exchange in organic. pi.-conjugated open-shell systems. A comparison of 1, 1-ethenediyl and carbonyl linked bis (arylnitrenes)

…, M Minato, PM Lahti, H Van Willigen

Index: Ling, Chris; Minato, Masaki; Lahti, Paul M.; Van Willigen, Hans Journal of the American Chemical Society, 1992 , vol. 114, # 25 p. 9959 - 9969

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Citation Number: 61

Abstract

Abstract: Linkage of two phenylnitrene electron-spin-bearing units by exchange coupling linker groups leads to model open-shell a-conjugated systems of the general structure: N-Ph- X-Ph-N: of various possible connectivity types. Use of variabletemperature electron spin resonance (ESR) spectroscopy of the dinitrenes with cross-conjugating linker groups-X- allowed study of the ground-state spin multiplicities of open-shell systems that are related ...