These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Tetrakis(mu(2)-1,8-naphthyridine)-1:2kappa(4)N:N';3:4kappa(4)N:N'-bis(mu(2)-salicylato)-1:4kappa(2)O:O';2:3kappa(2)O:O'-tetrakis(salicylic acid)-1kappaO,2kappaO,3kappaO,4kappaO-tetrasilver(I)(4 Ag-Ag).
    Author: Wang Y, Okabe N.
    Journal: Acta Crystallogr C; 2005 Jun; 61(Pt 6):m263-5. PubMed ID: 15930659.
    Abstract:
    The title complex, [Ag4(C7H5O3)2(C8H6N2)4(C7H6O3)4], lies about an inversion centre and has a unique tetranuclear structure consisting of four Ag(I) atoms bridged by four N atoms from two 1,8-naphthyridine (napy) ligands to form an N:N'-bridge and four O atoms from two salicylate (SA) ligands to form an O:O'-bridge. The Ag atoms have distorted octahedral coordination geometry. The centrosymmetric Ag4 ring has Ag-Ag separations of 2.772 (2) and 3.127 (2) A, and Ag-Ag-Ag angles of 107.70 (4) and 72.30 (4) degrees . All SA hydroxy groups take part in intramolecular O-H...O hydrogen bonding. In the crystal packing, the napy rings are oriented parallel and overlap one another. These pi-pi interactions, together with weak intermolecular C-H...O contacts, stabilize the crystal structure.
    [Abstract] [Full Text] [Related] [New Search]