A Zn(II)-Coordination Polymer for the Instantaneous Cleavage of C_sp³–C_sp³ Bond and Simultaneous Reduction of Ketone to Alcohol

Abstract

Two coordination polymers of Zn­(II) and Cu­(II) with n-butylmalonic acid have been achieved in this work. The crystallographic structural descriptions along with the sedimentary rock-type microstructural morphology of these two coordination polymers (CPs) have been explored. The reactivity of β-hydroxy ketones with these two CPs has also been investigated. The Zn­(II)-CP shows a specific reactivity with β-hydroxy ketone at room temperature and in open air conditions. Through a microcolumn-based filtration technique, the Zn­(II)-CP shows the capability to break the Csp3 –Csp3 σ bonds of β-hydroxy ketone and simultaneously reduce the associated ketone to alcohol. Such conversion has been progressed without the use of any additional external reducing agent and any chemical workup or column chromatographic purification protocol. Other similar type CPs of Cu­(II) and Mn­(II) with n-butylmalonic acid completely failed to show similar reactivity with β-hydroxy ketone. On the basis of much experimental evidence, the most possible mechanistic pathway of the reactivity between β-hydroxy ketone and Zn­(II)-CP has also been proposed through this work.

An Encyclopedic Compendium on Chemosensing Supramolecular Metal‐Organic Gels

“…The fabrication of metal‐based supramolecular gels [43,52] has tremendous potential to develop nanosized soft material that exhibits many functionalities including CO 2 utilization [53] or adsorption, [54] antibiotic degradation, [55] resistive switching, [56,57] rheoreversiblity, [58] moisture harvesting, [56] guest sequestration, [56,59] anti‐pathogenic [57,60–62] or cancer [63] activity, semiconductor application, [64] diode fabrication, [65] designing nonvolatile memory, [64] energy storage devices such as supercapacitors, [66] electrode development, [20] self‐drug delivery, [67] wound healing, [68,69] usage in rechargeable aqueous batteries, [70] apoptosis, [71] metathesis, [72] third‐order nonlinearity, [73] porogen, [74] rechargeable organic batteries, [75] nonlinear optical materials, [73] separation of organic compounds, [76] dye [54] or drug [77] adsorption, gas sensing [78] or separations, [79] protein delivery, [80,81] electrocatalysts for a highly efficient oxygen evolution reaction [82] or enhancing the photocatalysis, [83] cargo releasing system, [84] reversible thixotropy, [85] structural modulator [86] or templates for a porous organic polymer, [87] copolymerization, [88] composite polymer nanowires [89] or nanoparticle [90] . Even a coordination polymer is reported for catalytic cleavage of even C(sp 3 )−C(sp 3 ) bond [91] and can possess chemo‐mechanical potential [92] for high‐tech applications.…”