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Dive into the research topics where Harald Berger is active.

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Featured researches published by Harald Berger.


Acta Crystallographica Section E: Crystallographic Communications | 2004

10‐Phenyl‐10‐phenylethynyl‐9‐methylenefluorene

Peter G. Jones; Harald Berger; Peter Bubenitschek; Henning Hopf

In the title compound [systematic name: 9-(1,3-diphenylprop-2-ynylidene)fluorene], C28H18, the two halves of the fluorene moiety subtend an angle of 7.84 (9)°; the interplanar angle about the exocyclic double bond is 12.3 (1)°. The packing involves three C—H⋯π contacts.


Acta Crystallographica Section E: Crystallographic Communications | 2004

1,3‐Di‐tert‐butyl‐6‐(phenyl­ethynyl)fulvene

Peter G. Jones; Harald Berger; Peter Bubenitschek; Henning Hopf

In the title compound [systematic name: 1,3-di-tert-butyl-5-(3-phenylprop-2-ynylidene)cyclopenta-1,3-diene], C22H26, the rings subtend an interplanar angle of 15.7 (1)°. The triple bond length is 1.205 (3) A.


Angewandte Chemie | 1997

Formation of Isobenzenes by Thermal Isomerization of 1,3‐hexadiene‐5‐yne Derivatives

Henning Hopf; Harald Berger; Gerhard Zimmermann; Uta Nüchter; Peter G. Jones; Ina Dix


Journal of the American Chemical Society | 2002

Anionic cyclization of a cross-conjugated enediyne.

Lior Eshdat; Harald Berger; Henning Hopf; Mordecai Rabinovitz


Angewandte Chemie | 1997

Bildung von Isobenzolen durch thermische Isomerisierung von 1,3-Hexadien-5-in-Derivaten†

Henning Hopf; Harald Berger; Gerhard Zimmermann; Uta Nüchter; Peter G. Jones; Ina Dix


European Journal of Organic Chemistry | 2004

A New Route for the Thermal Isomerization of a Highly Substituted Hexadienyne Derivative

Harald Berger; Henning Hopf; Ina Dix; Peter G. Jones


Acta Crystallographica Section E: Crystallographic Communications | 2005

1,3-Di-tert-butyl-6-(tri­methyl­silyl­ethynyl)­fulvene

Harald Berger; Peter Bubenitschek; Henning Hopf; Peter G. Jones


Acta Crystallographica Section E: Crystallographic Communications | 2005

9‐Methyl­ene‐10,10‐bis­(phenyl­ethyn­yl)fluorene–tetra­cyano‐para‐quinodimethane (2/3)

Peter G. Jones; Peter Bubenitschek; Henning Hopf; Harald Berger


Acta Crystallographica Section E: Crystallographic Communications | 2005

9-Methyl­ene-10,10-bis­(phenyl­ethyn­yl)fluorene

Henning Hopf; Harald Berger; Peter G. Jones; Peter Bubenitschek


Acta Crystallographica Section E: Crystallographic Communications | 2004

10,10‐Bis­(tri­methyl­silyl­ethynyl)‐9‐methyl­enefluorene–tetra­cyano‐para‐quinodi­methane (2/1)

Peter G. Jones; Harald Berger; Peter Bubenitschek; Henning Hopf

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Henning Hopf

Braunschweig University of Technology

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Peter G. Jones

Braunschweig University of Technology

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Peter Bubenitschek

Braunschweig University of Technology

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Ina Dix

Braunschweig University of Technology

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Lior Eshdat

Hebrew University of Jerusalem

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Mordecai Rabinovitz

Hebrew University of Jerusalem

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