@article{AlbertBerningBurschkaetal.1981,
  author    = {Albert, Bernhard and Berning, Wilfried and Burschka, Christian and H{\"u}nig, Siegfried and Martin, Hans-Dieter and Prokschy, Frank,},
  title     = {Transanulare Wechselwirkung des Azo-Chromophors inisodrinanalogen Systemen},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31328},
  year      = {1981},
  abstract  = {No abstract available},
  subject      = {Chemie},
  language  = {de}
}
@article{AlbertBerningBurschkaetal.1984,
  author    = {Albert, Bernhard and Berning, Wilfried and Burschka, Christian and H{\"u}nig, Siegfried and Prokschy, Frank},
  title     = {Azobr{\"u}cken aus Azinen, IV. Intramolekulare [2 + 2]-Photocycloaddition zwischen parallelen C = C- und N = N-Bindungen},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31314},
  year      = {1984},
  abstract  = {In den starren Molek{\"u}len 1- 10 reagieren die benachbarten parallelen C = C- und N = N-Bindungen nahezu quantitativ unter Photocyclisierung lU den l,2-Diazetidinen 11-10, deren Struktur spektroskopisch und f{\"u}r 13 durch Kristallstrukturanalyse bewiesen wird. Die in Abwesenheit der C = C-Bindung beobachtete Photo-Denitrogenierung unterbleibt selbst bei den empfindlichen Derivaten des 2,3-Diazabicyclo[2.2.11heptens. Photocyclisierung von 6 mit lwei zur N=N· Bindung benachbarten C=C-Bindungen tritt nur mit der Norbornendoppelbindung ein.},
  subject      = {Chemie},
  language  = {de}
}
@misc{HuenigWehner1989,
  author    = {H{\"u}nig, Siegfried and Wehner, Ingeborg},
  title     = {A convenient synthesis of 2,2',6,6'-Tetramethyl-4,4'-bipyridine and its oxidation to 2,2',6,6'-Tetracarboxy-4,4'-bipyridine},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32005},
  year      = {1989},
  abstract  = {No abstract available},
  language  = {en}
}
@article{HuenigWehner1989,
  author    = {H{\"u}nig, Siegfried and Wehner, Ingeborg},
  title     = {Two Step Redox Systems LII: 2,2'-Bipyridylboronium Salts},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44853},
  year      = {1989},
  abstract  = {Dications 1 derived from 2,2-bipyridine are found to exist as fully reversible two step redox systems with persistent radical ions (SEM) of high thermodynamic stability, if the bridge X forces the two pyridine rings into co planar positions. The well known derivative 1a (Diquat R) is now complemented by the boronium ions 1c and 1e -1g., as shown by voltammetry and the uv spectra of the corresponding radicals.},
  language  = {de}
}
@article{HuenigWehner1989,
  author    = {H{\"u}nig, Siegfried and Wehner, Ingeborg},
  title     = {Mehrstufige reversible Redoxsysteme, LIII: 4,4'-Bipyridin-1-1'-diylbisborane},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44866},
  year      = {1989},
  abstract  = {No abstract available},
  language  = {de}
}