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Article info. : 2008; 5(2) (pp 184~227)
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A
Brief Review on Structural Concepts of Novel Supramolecular Proton
Transfer Compounds and Their Metal Complexes
H. Aghabozorga,*, F. Manteghi and S.
Sheshmani
aFaculty of
Chemistry, Tarbiat Moallem University, Tehran, Iran
bFaculty of Chemistry, Iran University of Science and
Technology, Tehran, Iran
cDepartment of Chemistry, Islamic Azad University, Shahr-e
Rey Branch, Tehran, Iran
(Received 3 January 2008, Accepted 12 February 2008)
Our research group has been interested in synthesis
of proton transfer compounds as new supramolecular synthons for the
one-pot preparation of self-assembled transition metal complex-organo-networks
since 2000. We have focused on the proton delivery from acids, which are
considered as suitable proton donors, to amines as proton acceptors. The
results were production of several proton transfer ion pairs possessing
some remaining donor sites applied for coordination to metallic centers
in preparation of metal-organic structures. Some of the complexes showed
contributions of both cationic and anionic fragments of the starting ion
pair, while some others contained only one of these species as ligand.
Much of the investigations on reviewed compounds focused on the concept
of supramolecular systems, co-crystallization, stereochemically active
lone pairs, coordination polyhedron and mainly on various interactions
involve including van der Waals, ion pairing, hydrogen bondings, face to
face π-π stackings and edge to face C-H···π, C-O···π, N-H···π, S-O···π,
Ti···π and Hg-Cl···π interactions. The mentioned interactions are the
most commonly used strategies in the extension of supramolecular
structures.
Keywords: Proton transfer compounds,
Supramolecular systems, Hydrogen bonds and π-π stacking,
Stereochemically active lone pair, Coordination polyhedron, Crystal
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