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The Preparation and Characterization of 5-Substituted-4-chloro-1,2,3-dithiazolium Salts and their Conversion into 4-Substituted-3-chloro-1,2,5-thiadiazoles
Molecules 2005, 10(2), 360-366; doi:10.3390/10020360

Synthesis and X-ray Structure of a New Pyrrolo[1,2-b]-pyridazine Derivative

1,* , 2, 2, 2 and 2
1 Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa 2 Centre of Organic Chemistry “C. D. Nenitzescu”, Romanian Academy, Spl. Independentei 202B,Bucharest 060023, Romania
* Author to whom correspondence should be addressed.
Received: 26 November 2004 / Accepted: 16 December 2004 / Published: 28 February 2005
(This article belongs to the Special Issue Sulfur-Nitrogen Heterocycles)
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The synthesis, characterization and X-ray crystal structure of 2-(4-chloro-phenyl)-7-methylpyrrolo[1,2-b]pyridazine are reported. The compound crystallizes in thespace group P21/c (No.14) with a =3.8568(1), b = 11.0690(3), c = 26.4243(7) å, β =92.777(1)° and Z = 4. Accurate molecular parameters for the novel heterocyclic systemwere obtained from intensity data collected at 113K. The molecule assumes a planarconformation in the crystal and the packing is based on π-π stacking with interplanarspacing 3.400 å, typical of aromatic molecules with potential for displaying usefuloptical properties.
Keywords: Pyrrolo[1; 2-b]pyridazine; crystal structure; π-π stacking Pyrrolo[1; 2-b]pyridazine; crystal structure; π-π stacking
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Caira, M.R.; Dumitrascu, F.; Draghici, C.; Dumitrescu, D.; Cristea, M. Synthesis and X-ray Structure of a New Pyrrolo[1,2-b]-pyridazine Derivative. Molecules 2005, 10, 360-366.

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