An effective strategy to synthesize multifunctional materials is the incorporation of functional organic moieties and metal oxide clusters via self-assembly. A rare multifunctional radical-doped zinc-based host-guest crystalline material was synthesized with a fast-responsive reversible ultraviolet visible light photochromism, photocontrolled tunable luminescence, and highly selective photocatalytic oxidation of benzylic alcohols as a result of blending of distinctively different functional components, naphthalenediimide tectons, and polyoxometalates (POMs). It is highly unique to link π-electron-deficient organic tectons and POMs by unusual POMs anion-π interactions, which are not only conducive to keeping the independence of each component but also effectively promoting the charge transfer or exchange among the components to realize the fast-responsive photochromism, photocontrolled tunable luminescence, and photocatalytic activity.
As the second leading cause of death in the world, the total number caused by cancer in 2008 is 1.4 million. The great cancer incidence worldwide increases the search for new, safer and efficient anticancer agents (especially to find the new structures and more active anticancer drugs from the natural products) aiming the prevention or the cure of such illness. For a century, matrine (an alkaloid isolated from sophorae flavescens Ait.) has been widely studied in the field of cancer. This review briefly describes the progress of matrine, its derivatives and their anticancer activity.
Two rare copper-based host–guest
crystalline compounds were
synthesized with different photoresponsive reversible visible light
photochromism as a result of blending of distinctively different functional
components, naphthalenediimides (NDIs) tectons and polyoxometalates.
A slight adjustment of the substituent of the diimide nitrogens, from
rigid to semirigid ligands, will result in different modes of anion−π
interactions, which eventually lead to different structures and different
sensitivities to visible light. The unique anion−π interactions
impart significant impacts on the structures of the compounds and,
to some extent, the ability to gain or lose electrons of the NDIs
of the compounds, which is evident from subtle changes in photochromic
sensitivity and reduction potentials; if compounds bear more and stronger
anion−π interactions, this might dramatically enhance
the compounds’ stability and diminish the π-electron-deficient
property of the core naphthalene ring of the NDIs.
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