Building hydrogen-bonded networks from metal complexes containing the heterotopic (N or O) ligand 4, 4′-bipyridine-N-monoxide. Issue 1 (1st February 2016)

• Record Type: Journal Article
• Authors: Vukotic, V. Nicholas; Loeb, Stephen J.
• Is Part Of: Supramolecular chemistry. Volume 28:Issue 1/2(2016)
• Page Start: 151
• Page End: 160
• Publication Date: 2016-02-01
• Subjects: coordination polymer -- hydrogen-bonded networks; Macromolecules -- Periodicals; Supramolecular chemistry -- Periodicals; 547.005
• DOI: 10.1080/10610278.2015.1115865
• Languages: English
• ISSNs: 1061-0278

Abstract

Abstract : The heterotopic ligand 4, 4′-bipyridine- N -monoxide (BIPYMO ) has a rigid, linear structure and contains both a pyridine N-donor and a pyridine- N -oxide O-donor which are capable of coordinating to a metal centre or alternatively acting as a hydrogen bond acceptor. The hydrogen bonding capacity ofBIPYMO is first demonstrated by the formation of hydrogen-bonded networks with water and some simple dicarboxylic acids (fumaric = FUM, terephthalic = TPA). It is then shown thatBIPYMO can coordinate through the pyridine N-donor to Pd(II) and through the pyridine- N -oxide O-donor to Fe(II), Co(II) and Mn(II). In each case, the peripheral, uncoordinated N- or O-atoms act as a hydrogen bond acceptors and interact with a metal-bound and hydrogen bond donor (H2 O, fumarate = FUM, malonate = MAL, iso phthalate = IPA) to form a solid-state, network through a combination of metal–ligand coordination and hydrogen bonding. Single-crystal X-ray structures of {(BIPYMO )(H2 O)2 }n, {(BIPYMO )(FUM)}n, {(BIPYMO )(TPA)}n, {[Pd(BIPYMO )2 (MAL)2 ](H2 O)}n, {[Pd(BIPYMO )2 (IPA)2 ](H2 O)2 }n and {[M(BIPYMO )2 (FUM)2 (H2 O)2 ]}n (M = Mn, Fe, Co), show how the individual building blocks are organised via hydrogen bonding through uncoordinated pyridine N-atoms or pyridine- N -oxide O-atoms to form supramolecular networks.