CHIRAL RECOGNITION AMONG TRISDIIMINE - METAL-COMPLEXES .1. STRUCTURES OF TRIS-(3,3'-BI-1,2,4-TRIAZINE)IRON(II) COMPLEXES

BREU, J and RANGE, KJ and HERDTWECK, E (1994) CHIRAL RECOGNITION AMONG TRISDIIMINE - METAL-COMPLEXES .1. STRUCTURES OF TRIS-(3,3'-BI-1,2,4-TRIAZINE)IRON(II) COMPLEXES. MONATSHEFTE FUR CHEMIE, 125 (2). pp. 119-140. ISSN 0026-9247,

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Abstract

By cyclo-condensation of beta-diketones with oxamiddihydrazone 3,3'-bi-triazines with different substituents in 5,5'-, 6,6'-position and their corresponding iron(II)-trischelates were synthesized. The structures of the complexes tris-(3,3'-bi-1,2,4-triazine, 5,5',6,6'-tetramethyl)iron(II) ditetrachloroferrate(III) and tris-(3,3'-bi-1,2,4-triazine, 5,5',6,6'-tetraphenyl)iron(II) ditetrachloroferrate(III) could be solved by means of single crystal X-ray-analysis. Both complexes crystallize from racemic solutions in an enantiomorphic space group (P2(1)3 and P2(1)2(1)2, respectively) with one molecule in the asymmetric unit, i.e. the rare phenomenon of spontaneous resolution by crystallization is observed. Hence, homochiral intermolecular interactions are strongly preferred over heterochiral ones.

Item Type: Article
Uncontrolled Keywords: 2,2'-BIPYRIDINE-5-SULFONIC ACID; SPECTROSCOPIC PROPERTIES; MOLECULAR-STRUCTURE; CRYSTAL-PACKING; D3 SYMMETRY; DISCRIMINATIONS; CATALYSTS; IONS; CHIRAL RECOGNITION; CHIRAL DISCRIMINATION; SPONTANEOUS RESOLUTION; TRISDIIMINE COMPLEXES; 3,3'-BI-TRIAZINES; CRYSTAL STRUCTURES
Depositing User: Dr. Gernot Deinzer
Last Modified: 19 Oct 2022 08:41
URI: https://pred.uni-regensburg.de/id/eprint/53487

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