Synthesis of “Porphyrin-Linker-Thiol” Molecules with Diverse Linkers for Studies of Molecular-Based Information Storage
作者:Daniel T. Gryko、Christian Clausen、Kristian M. Roth、Narasaiah Dontha、David F. Bocian、Werner G. Kuhr、Jonathan S. Lindsey
DOI:10.1021/jo000487u
日期:2000.11.1
efficient synthesis of 1-(S-acetylthio)-4-iodobenzene also has been developed. A set of porphyrins, each bearing one S-acetyl-derivatized linker at one mesoposition and mesityl moieties at the three remaining mesopositions, has been synthesized. Altogether seven new aldehydes, eight free base porphyrins and eight zinc porphyrins have been prepared. The zinc porphyrins bearing the different linkers
Synthesis of porphyrins designed for attachment to electroactive surfaces via one or more carbon tethers
申请人:Lindsey S. Jonathan
公开号:US20060009638A1
公开(公告)日:2006-01-12
Porphyrin compounds having a surface attachment group coupled thereto at the 5 position are described. The surface attachment group has the formula:
wherein R is —CHCH
2
or —CCH and Ar is an aromatic group. Methods and intermediates useful for making such compounds are also described.
A (preferably nonaqueous) method of making a dipyrromethane is described. The comprises the steps of: (a) providing a reaction system consisting essentially of an aldehyde or acetal, excess pyrrole and a catalyst; (b) reacting the aldehyde or acetal with the pyrrole in the reaction system to form the dipyrromethane therein; (c) quenching the reaction system by adding a base thereto (preferably without simultaneously or concurrently adding water and/or an organic solvent thereto); (d) separating the catalyst from the reaction system; and then (e) separating the pyrrole from the reaction system to produce the dipyrromethane as a residual
This invention provides novel high density memory devices that are electrically addressable permitting effective reading and writing, that provide a high memory density (e.g., 10
15
bits/cm
3
), that provide a high degree of fault tolerance, and that are amenable to efficient chemical synthesis and chip fabrication. The devices are intrinsically latchable, defect tolerant, and support destructive or non-destructive read cycles. In a preferred embodiment, the device comprises a fixed electrode electrically coupled to a storage medium having a multiplicity of different and distinguishable oxidation states wherein data is stored in said oxidation states by the addition or withdrawal of one or more electrons from said storage medium via the electrically coupled electrode.
SYNTHESIS OF PORPHYRINS DESIGNED FOR ATTACHMENT TO ELECTROACTIVE SURFACES VIA ONE OR MORE CARBON TETHERS
申请人:Lindsey Jonathan S.
公开号:US20080194839A1
公开(公告)日:2008-08-14
Porphyrin compounds having a surface attachment group coupled thereto at the 5 position are described. The surface attachment group has the formula:
wherein R is —CHCH
2
or —CCH and Ar is an aromatic group. Methods and intermediates useful for making such compounds are also described.