Convenient synthesis of copper (I) thiolates and related compounds
作者:Lynda M. Nguyen、Megan E. Dellinger、Jeffrey T. Lee、Ronald A. Quinlan、Arnold L. Rheingold、Robert D. Pike
DOI:10.1016/j.ica.2004.11.030
日期:2005.3
Copper (I) salts of various anions including thiolates, diethyl dithiocarbamate, diethyl dithiophosphate, trithiocyanurate, 1cyano-3-methylisothiourea, 2-aminothiazole, and tetrakis(1-imidazolyl)borate are conveniently synthesized by reducing copper (II) sulfate in aqueous ammonia. The addition of phosphine ligands to several of the products is demonstrated, and the crystalstructure of [Cu2(MBT)2(DPPE)3]
Supramolecular Precursors for the Synthesis of Anisotropic Cu<sub>2</sub>S Nanocrystals
作者:Whitney Bryks、Melissa Wette、Nathan Velez、Su-Wen Hsu、Andrea R. Tao
DOI:10.1021/ja500786p
日期:2014.4.30
Copper alkanethiolates are organometallic precursors that have been used to form Cu2S nanodisks upon thermal decomposition. Here, we demonstrate that molecular assembly of Cu alkanethiolates into an ordered liquid crystalline mesophase plays an essential role in templating the disk morphology of the solid-state product. To examine this templating effect, we synthesize Cu alkanethiolate precursors with alkane tails of varying chain length and sterics. We demonstrate that short chain precursors produce two-dimensional (2D) nanosheets of Cu2S, while longer-chained variants produce Cu2S nanodisks exclusively. This work provides new insights into the use of liquid crystalline phases as templates for nanocrystal synthesis and as a potential route for achieving highly anisotropic inorganic nanostructures.
The self-assembly of a layered material: metal-alkanethiolate bilayers
Layered materials composed of metal-alkanethiolate units have been synthesized and characterized. The self-assembly occurs at the interface between a metal-ion-containing aqueous phase and an alkanethiol-containing organic phase. Key features of the structure have been determined from X-ray diffraction and infrared spectroscopy measurements. The highly ordered bilayers are characterized by tilted, all-trans alkyl chains. A new model for the inplane structure has been presented, which is based on a hexagonal arrangement of metal atoms in the central plane.
Naphthalocyanine derivatives and their use in optical recording medium