Electrografting of calix[4]arenediazonium salts to form versatile robust platforms for spatially controlled surface functionalization.

Abstract:

:An essential issue in the development of materials presenting an accurately functionalized surface is to achieve control of layer structuring. Whereas the very popular method based on the spontaneous adsorption of alkanethiols on metal faces stability problems, the reductive electrografting of aryldiazonium salts yielding stable interface, struggles with the control of the formation and organization of monolayers. Here we report a general strategy for patterning surfaces using aryldiazonium surface chemistry. Calix[4]tetra-diazonium cations generated in situ from the corresponding tetra-anilines were electrografted on gold and carbon substrates. The well-preorganized macrocyclic structure of the calix[4]arene molecules allows the formation of densely packed monolayers. Through adequate decoration of the small rim of the calixarenes, functional molecules can then be introduced on the immobilized calixarene subunits, paving the way for an accurate spatial control of the chemical composition of a surface at molecular level.

journal_name

Nat Commun

journal_title

Nature communications

authors

Mattiuzzi A,Jabin I,Mangeney C,Roux C,Reinaud O,Santos L,Bergamini JF,Hapiot P,Lagrost C

doi

10.1038/ncomms2121

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

1130

issn

2041-1723

pii

ncomms2121

journal_volume

3

pub_type

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