Classical structural formulas often convey the impression only those relationships between
the atoms are of importance which hold a molecule together as symbolized by the chemical …

A series of substituted poly (p-phenylenediyne) s (1a− f) was synthesized by the palladium-
catalyzed cross-coupling condensation of terminal dialkynylalkanes with substituted …

Photoelectron spectra and bonding in small ring hydrocarbons Page 1 Photoelectron Spectra
and Bonding in Small Ring Hydrocarbons Rolf Gleiter Institut f'tir Organische Chemie der …

The conformation of organic molecules may be determined by means of photoelectron (PE)
spectroscopy if there are orbital interactions present which depend on a dihedral angle …

Die Reaktivität von Cyclopentadien und cis‐fixierten Di‐exo‐methylenverbindungen in Diels‐
Alder‐Reaktionen wird im Rahmen des Grenzorbitalmodells untersucht. Es wird gezeigt …

Um das Ausmaß der Konjugation zwischen π‐Elektronen der CC‐Doppelbindung und
freien Elektronenpaaren am O‐Atom α, β‐ungesättigter Ether zu ermitteln, wurden die …

Abstract Die Konformation organischer Moleküle läßt sich durch Photoelektronen‐(PE‐)
Spektroskopie bestimmen, wenn vom Diederwinkel abhängige Orbitalwechselwirkungen …

Strained pentacyclicketones (5a-d) were prepared in high yields by photoinduced [4+ 2]
cycloadduct of 7V-(ethoxycarbonyl) azepine with substitutedcyclopentadienones. The …

A number of cyclobutane derivatives containing one or more double bonds in endo‐or
exocyclic positions have been studied by the molecular mechanics method within the …

The 2, 4-dimethylenecyclobutane-1, 3-diyl negative ion 2 has been generated in the gas
phase from the reaction of atomic oxygen anion with 1, 3-dimethylenecyclobutane 3. This …