A novel supramolecular synthon for H-bonded coordination networks: syntheses and structures of extended 2-dimensional cadmium(II) arenedisulfonates

Citation
Jw. Cai et al., A novel supramolecular synthon for H-bonded coordination networks: syntheses and structures of extended 2-dimensional cadmium(II) arenedisulfonates, J CHEM S DA, (16), 2001, pp. 2370-2375
Citations number
40
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
ISSN journal
1472-7773 → ACNP
Issue
16
Year of publication
2001
Pages
2370 - 2375
Database
ISI
SICI code
1472-7773(20010821):16<2370:ANSSFH>2.0.ZU;2-F
Abstract
Four cadmium(II) arenedisulfonate polymers, namely [Cd(N,N'-meen)(2)](2,6nd s) (1), [Cd(N,N'-meen)(2)](1,5nds) (2), [Cd(N,N'-meen)(2)](bpds) (3), and [ Cd(N-meen)(2)](2,6nds). 2H(2)O (4), where nds = naphthalenedisulfonate, bpd s = 4,4'-biphenyldisulfonate, N,N'-meen = N,N'-dimethylethylenediamine and N-meen = N-methylethylenediamine, have been synthesized in aqueous solution and structurally characterized by X-ray single crystal diffraction and IR spectroscopy. In all four crystalline materials, the arenedisulfonate anion s act as bifunctional spacers to coordinate the CdN4 complex cations. gener ating stepwise I-dimensional strings. Due to the inherent multiple H-bondin g donors/acceptors on their neutral polymeric backbones the same pattern of inter-chain H-bonding interactions described as C(6)R-2(2)(12) are formed by the amino H-atoms and sulfonate O-atoms. Hence, the driving forces for t he assembly of these 1-dimensional polymers into 2-dimensional networks hav e been rationalized and a unique supramolecular synthon identified. It repr esents a novel strategy that leads to predictable 2-dimensional coordinatio n networks sustained by direct H-bonding interactions between the 1-dimensi onal polymeric backbones.