Photocurrent generation in metal bisphosphonate multilayer thin films

Metal Phosphonates Applied to Biotechnologies: A Novel Approach to Oligonucleotide Microarrays

“…[46] The zirconium phosphonate-modified surfaces can be prepared in different ways, but often involve binding of Zr 4 + ions to phosphorylated groups deposited onto silica [50,51,54,[56][57][58][59][60][61] or gold ( Figure 6). [52,54,56,57,62] Our experience is that exceptionally smooth and uniform films can be gener- Chem. Eur.…”

“…This chemistry has been used to prepare organized organic films for topics that include nonlinear optics, electron transfer, and electrochemical sensing. [34,[51][52][53][54] While multilayered structures can be achieved by cycling the alternate layer process, an active surface is generated by binding Zr 4 + ions to a phosphate or phosphonate monolayer, as indicated in the scheme in Figure 5. This surface can subsequently be used to adsorb another layer of an organophosphonate or phosphate that deposits as a type of self-assembled monolayer.…”

Spectroscopic and Photophysical Studies of Charge‐Transfer in a Cd8 Thiolate Cluster Complex Containing a Coordinated N‐Methyl‐4,4′‐bipyridinium Ligand

“…This is attributed to quenching effects caused by electron transfers from the excited state to the MeQ + ligand. Viologens are strong electron acceptors that readily engage in electron transfer reactions [17] and have been shown to form a variety of intra-and intermolecular charge-transfer (CT) complexes with a wide range of donors including halides, [18] ferrocyanide, [19] carboxylate anions, [20] amines, [21] phenols, arenes [22] and calixarenes. [23] Recently, methylviologen have also been used as electron acceptor for CdSe QDs and the fluorescence of QDs can be totally quenched.…”

A Low‐dimensional Viologen/Iodoargentate Hybrid [(BV)2­(Ag5I9)]n: Structure, Properties, and Theoretical Study

“…As a well‐known class of organic dications with excellent redox behavior, viologens ( N , N ′‐disubstituted 4,4′‐bipyridinium) have attracted great interests due to their wide applications such as solar energy storage,12 electrochromic display devices,13 organic electrical conductors,14 construction of supramolecular systems and charge transfer materials 15. On the other hand, viologens can also be used as the electron accepters to hybridize with the corresponding electron donors (including halides,16,17 ferrocyanides,18 carboxylate anions,19 amines,20 phenols and arenas21,22) to assemble charge transfer complexes with versatile structural chemistry and optoelectronic properties. Up to date, the simplest methyl viologen, 1,1′‐dimethyl‐4,4′‐dipyridinium ( M V 2+ ), has been widely studied,23–25 other viologen such as benzyl viologen (BV 2+ ), which possess larger conjugated systems, have been less explored 26,27.…”