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Titolo:
Construction of various supramolecules by pi-pi interactions: Self-assembly of nickel(II) macrocyclic complexes containing pyridine pendant arms withbidentate ligands
Autore:
Min, KS; Suh, MP;
Indirizzi:
Seoul Natl Univ, Sch Chem, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Chem, Seoul 151742, South Korea Seoul Natl Univ, Ctr Mol Catalysis, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 ysis, Seoul 151742, South Korea
Titolo Testata:
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
fascicolo: 2, , anno: 2001,
pagine: 449 - 455
SICI:
1434-1948(200102):2<449:COVSBP>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
AROMATIC-AROMATIC INTERACTIONS; MOLECULAR RECOGNITION; HYDROGEN-BONDS; SPIN-CROSSOVER; BINDING-SITES; STACKING; CONSEQUENCES; BENZENE; WATER; DIMER;
Keywords:
macrocyclic ligands; nickel; self-assembly; pi-pi interactions; supramolecular chemistry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Suh, MP Seoul Natl Univ, Sch Chem, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 oul 151742, South Korea
Citazione:
K.S. Min e M.P. Suh, "Construction of various supramolecules by pi-pi interactions: Self-assembly of nickel(II) macrocyclic complexes containing pyridine pendant arms withbidentate ligands", EUR J INORG, (2), 2001, pp. 449-455

Abstract

The supramolecular compounds, [Ni(C20H32N8)(en)](ClO4)(2) . 2 H2O (1), [Ni(C20H32N8)(isonicotinate)(2)] (2), and [Ni(C20H32N8)(BQDC)] . 3 H2O (3), have been constructed by the self-assembly of a nickel(IT) macrocyclic complex containing pyridyl pendant rings, [Ni(C20H32N8)](ClO4)(2) . 2 H2O, with ethylenediamine thereafter noted en), isonicotinic acid, and potassium 2,2'-biquinoline-4,4'-dicarboxylate, (K(2)BQDC . 3 H2O), respectively, in MeCN/H2O. The X-ray crystal structure of 1 indicates that one en coordinates a nickel(II) macrocyclic complex to form a folded macrocyclic complex, which ends up with a stacking dimer via C--H . . . pi and offset face-to-face pi-piinteractions between the pyridine pendant groups. The X-ray crystal structure of 2 indicates that two isonicotinate ions coordinate a nickel(II) macrocyclic complex at the axial positions and the pyridine groups of the coordinated isonicotinates are involved in offset face-to-face pi-pi interactions, which gives rise to a 1D chain. The 1D chains are linked together via the offset face-to-face pi-pi interactions between the pyridine groups of themacrocycle to generate a 2D network. The X-ray crystal structure of 3 indicates that each BQDC(2-) ion coordinates two nickel(II) macrocyclic complexes and each nickel(II) macrocyclic unit binds two BQDC(2-) ions at the axial positions to form a 1D chain. The 1D chains experience the intramolecularhydrogen bonding as well as the interchain offset face-to-face pi-pi interactions between the pyridyl pendant rings of the macrocycle and the BQDC(2-) ions, which gives rise to a 2D sheet. Between the 2D sheets herringbone pi-pi interactions exist, which results in a 3D framework.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/01/20 alle ore 06:57:21