Anion-Directed Self-Assembly in Coordination Networks: Architectural Control via Cooperative Noncovalent Interactions
摘要:
The self-assembly of a new flexible tritopic pyrazine-pyridine ligand (pz-3-py) with HgX2 (X = Cl, Br) was investigated. The results show that coordinated chloride and bromide anions play different roles, and two architecturally different coordination polymers were obtained with the anions used. Where X = Cl, in [Hg(mu(3)-pz-3-py)Cl-2](n) (1), the 2D network is isolated, while for X = Br, in [Hg(mu-pz-3-py)Br-2](n) (2), a 1D zigzag chain is constructed. Our results show that noncovalent interactions such as hydrogen bond, halogen center dot center dot center dot halogen, and halogen center dot center dot center dot pi interactions, when acting cooperatively, are driving forces for the selection of different structures.
Anion-Directed Self-Assembly in Coordination Networks: Architectural Control via Cooperative Noncovalent Interactions
摘要:
The self-assembly of a new flexible tritopic pyrazine-pyridine ligand (pz-3-py) with HgX2 (X = Cl, Br) was investigated. The results show that coordinated chloride and bromide anions play different roles, and two architecturally different coordination polymers were obtained with the anions used. Where X = Cl, in [Hg(mu(3)-pz-3-py)Cl-2](n) (1), the 2D network is isolated, while for X = Br, in [Hg(mu-pz-3-py)Br-2](n) (2), a 1D zigzag chain is constructed. Our results show that noncovalent interactions such as hydrogen bond, halogen center dot center dot center dot halogen, and halogen center dot center dot center dot pi interactions, when acting cooperatively, are driving forces for the selection of different structures.
[EN] DIARYLAMINE-SUBSTITUTED QUINOLONES USEFUL AS INDUCIBLE NITRIC OXIDE SYNTHASE INHIBITORS<br/>[FR] QUINOLONES SUBSTITUÉES PAR DIARYLAMINE UTILES COMME INHIBITEURS DE L'OXYDE NITRIQUE SYNTHASE INDUCTIBLE.
申请人:KALYPSYS INC
公开号:WO2009029617A1
公开(公告)日:2009-03-05
Novel diarylamine-substituted quinolone compounds and pharmaceutical compositions, certain of which have been found to inhibit inducible NOS synthase have been discovered, together with methods of synthesizing and using the compounds including methods for the treatment of iNOS-mediated diseases in a patient by administering the compounds.
The self-assembly of a new flexible tritopic pyrazine-pyridine ligand (pz-3-py) with HgX2 (X = Cl, Br) was investigated. The results show that coordinated chloride and bromide anions play different roles, and two architecturally different coordination polymers were obtained with the anions used. Where X = Cl, in [Hg(mu(3)-pz-3-py)Cl-2](n) (1), the 2D network is isolated, while for X = Br, in [Hg(mu-pz-3-py)Br-2](n) (2), a 1D zigzag chain is constructed. Our results show that noncovalent interactions such as hydrogen bond, halogen center dot center dot center dot halogen, and halogen center dot center dot center dot pi interactions, when acting cooperatively, are driving forces for the selection of different structures.