Synthesis, crystal structure and optical limiting property of a novel octanuclear silver cluster complex with an aryl selenolate ligand

Citation
Kl. Tang et al., Synthesis, crystal structure and optical limiting property of a novel octanuclear silver cluster complex with an aryl selenolate ligand, J CHEM S DA, (8), 2001, pp. 1374-1377
Citations number
23
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
8
Year of publication
2001
Pages
1374 - 1377
Database
ISI
SICI code
1472-7773(2001):8<1374:SCSAOL>2.0.ZU;2-E
Abstract
The homoleptic silver aryl selenolate complex [Ag-8(2,4,6-(Pr3C6H2Se)-C-i)( 8)] 1 was synthesized by the reaction of AgNO3 with an equivalent amount of 2,4,6-triisopropylbenzeneselenol (2,4,6-(Pr3C6H2SeH)-C-i) in MeCN in the p resence of triethylamine at room temperature for 4 h. Recrystallization by slow diffusion of CH3OH into a CH2Cl2 solution gave yellow block crystals. The crystal structure determination indicates that the structure of the Ag8 Se8 core of complex 1 consists of a compressed distorted Ag-8 hexagonal bip yramid embedded in a distorted rhombohedron formed by eight selenium atoms of the aryl selenolate ligands. The cluster exhibits a strong optical limit ing effect with threshold of 0.2 J cm(-2), which is about 2.5 times lower t han that of C-60 in toluene under identical experimental conditions.