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Hierarchical multicomponent assembly utilizing sequential metal-ligand and hydrogen-bonding interactions

Constable, Edwin C. and Zhang, Guoqi and Housecroft, Catherine E. and Neuburger, Markus and Schaffner, Silvia. (2009) Hierarchical multicomponent assembly utilizing sequential metal-ligand and hydrogen-bonding interactions. CrystEngComm, 11 (4). pp. 657-662.

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Official URL: http://edoc.unibas.ch/dok/A5251518

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Abstract

The solid state structures of the copper(II) Schiff base complexes [{Cu(1)}(H2O)], [Cu(1)(OH2)]center dot MeCN and [({Cu(1)}(H2O))(2)(2)] (H(2)1 = N,N'-(1R,2R)-(-)-1,2-cyclohexylenebis(3-ethoxysalicylideneamine) and 2 naphthalene-2,6-dicarboxylic acid) exhibit two recurring structural motifs: host-guest, hydrogen-bonded recognition of H2O in the O,O',O '',O'''-cavity of [Cu(1)], and face-to-face stacking of [Cu(1)] units with non-bonded Cu center dot center dot center dot Cu separations of 3.54-4.89 angstrom. In [{Cu(1)}(H2O)], the H2O molecule is non-coordinated to the copper(II) centre whereas in [Cu(1)(OH2)]center dot MeCN it is axially bound to the copper(II) atom while retaining its role as a hydrogen-bonded guest in the O,O',O '',O'''-cavity of an adjacent [Cu(1)] molecule. The guest H2O molecule in [{Cu(1)}(H2O)] can function as a hydrogen bond donor as illustrated by the assembly of [({Cu(1)}(H2O))(2)(2)]. Solution (in THF) electronic spectroscopic data for the complexes are consistent with dissociation of the building blocks including the cleavage of the Cu-OH2 coordination bond. The self-assembly and structural diversity are discussed in terms of a series of hierarchical events.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
UniBasel Contributors:Constable, Edwin Charles
Item Type:Article, refereed
Publisher:Royal Society of Chemistry
e-ISSN:1466-8033
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:08 May 2017 08:51
Deposited On:22 Mar 2012 14:07

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