Two crystal structures of copper(II) complexes and adducts based on the neutral N1,N1-dimethyl-N2-(pyridin-2-ylmethyl)ethane-1,2-diamine ligand

From the reaction of copper(II) chloride dihydrate with N1,N1-dimethyl-N2-(pyridin-2-ylmethyl)ethane-1,2-diamine (denoted N^N^N) a new species comprising three distinct complexes crystallized, namely, aquachlorido[N1,N1-dimethyl-N2-(pyridin-2-ylmethyl)ethane-1,2-diamine-κ3N,N′,N′′]copper(II) chlorid...

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Bibliographic Details
Main Authors: Basam M. Alzoubi, Carola Schulzke
Format: Article
Language:English
Published: International Union of Crystallography 2025-08-01
Series:Acta Crystallographica Section E: Crystallographic Communications
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Online Access:https://journals.iucr.org/paper?S2056989025006000
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Summary:From the reaction of copper(II) chloride dihydrate with N1,N1-dimethyl-N2-(pyridin-2-ylmethyl)ethane-1,2-diamine (denoted N^N^N) a new species comprising three distinct complexes crystallized, namely, aquachlorido[N1,N1-dimethyl-N2-(pyridin-2-ylmethyl)ethane-1,2-diamine-κ3N,N′,N′′]copper(II) chlorido[N1,N1-dimethyl-N2-(pyridin-2-ylmethyl)ethane-1,2-diamine-κ3N,N′,N′′]copper(II) tetrachloridocuprate(II), [CuCl(C10H17N3)(H2O)][CuCl(C10H17N3)][CuCl4] or [Cu(N^N^N)(H2O)Cl][Cu(N^N^N)Cl2][CuCl4], the latter two of which form an adduct. This complex was reacted with ammonium thiocyanate to form [Cu(N^N^N)(NCS)2], which crystallized with two independent molecules and a partial water in the asymmetric unit very similarly to the already reported structure of this compound. Both crystal structures show a rather complex set of intermolecular interactions including hydrogen bonding and what may be described as chalcogen bonding, pnictogen bonding and/or coinage bonding. The molecular structures, intramolecular interactions and packing patterns are discussed in detail and the more unusual ones are set into the context of structures available in the literature.
ISSN:2056-9890