Copper(I)-mediated quaternisation of 1,4-diazabicyclo[2.2.2]octane (DABCO). Crystal structure of bis (1-chloromethyl-4-aza-1-azoniabicyclo[2.2.2]octane)-μ-chloro-chlorocopper(I)
Artikel i vetenskaplig tidskrift, 2005

Copper(I)-mediated quaternisation of 1,4-diazabicyclo[2.2.2]octane (DABCO) in dichloromethane solvent affords the dichloromethylated ligand, which has been isolated as the copper(I) complex bis (1-chloromethyl-4-aza-1-azoniabicyclo[2.2.2]octane)-μ-chloro-chlorocopper(I) . The crystal structure of the product, a discrete dimer [Cu2(μ-Cl)2Cl2(N(C2H4)3NCH2Cl)2], has been determined. A similar reaction in a mixture of diiodomethane and dichloromethane yields [C6H12N2(CH2I)]2(I3)I, the identity of which was also established by means of crystal-structure determination. The dimeric units of [Cu2(μ-Cl)2Cl2(N(C2H4)3NCH2Cl)2] are interconnected by short ClH interactions of 2.6 to form layers. This ClH interaction, which is the sole intermolecular contact of this magnitude, involves the terminal chloride bonded to copper(I).

Copper(I)

Hydrogen bond acceptors

Chloride

Diiodomethane

1

Dichloromethane

Methylation

4-Diazabicyclo[2.2.2]octane

Bromide

Författare

Björn Gustafsson

Chalmers, Kemi- och bioteknik, Oorganisk kemi

Mikael Håkansson

Göteborgs universitet

Susan Elisabeth Jagner

Göteborgs universitet

Chalmers, Kemi- och bioteknik, Oorganisk kemi

Inorganica Chimica Acta

0020-1693 (ISSN)

Vol. 358 1309-1312

Ämneskategorier

Kemi

DOI

10.1016/j.ica.2004.10.026