Water Tetramer Confinement and Photosensitive Schottky Behavior of a 2D Coordination Polymer

Abstract

A mixed‐ligand divalent coordination polymer (CP) [Cu2(muco)2(py)4]⋅4H2O⋅2EtOH (1) has been synthesized by the reaction of Cu(ClO4)2⋅6H2O and pyridine (py) with trans, trans‐muconic acid (H2muco). The compound 1 has two‐dimensional (2D) sheet structure with approximately a square‐grid network containing one‐dimensional (1D) channels. Lattice water molecules are located in the void spaces and form discrete Z‐type water tetramer cluster. Interestingly, the compound 1 formed a Schottky interface with Al material which is supported from the impedance spectroscopy (IS) based network analysis. The photosensing parameters show that the material is well responsive to the illumination with sound detectivity power and rectification ratio. Therefore, this material has potential to be used as a Schottky diode as well as a photosensing device.

Supramolecular Aggregate of Cadmium(II)-Based One-Dimensional Coordination Polymer for Device Fabrication and Sensor Application

“…Not only their structural stability but also their thermal and chemical stability make them desirable for researchers working in the field of materials chemistry. Our group is able to design a number of CPs for application in device fabrication and electrical conductivity. − …”

Halogen⋅⋅⋅π Interactions in Supramolecular Architecture of 1D Coordination Polymers and Their Electrical Conductance

“…The value of R 1 faces a phenomenal variation with the applied bias voltage for both the diodes. The reduction of R 1 with the applied bias voltage signifies the presence of Schottky contact formation by the synthesized compound and Al metal ,. For a Schottky diode, the charge transfer mechanism is considerably influenced by the applied bias voltage in forward bias regime.…”

“…Here, the resistance varies for both the diodes within the minimal range. It may be due to the presence of junction defects at the concerned interface ,…”

Room-Temperature FTIR Spectra of the Cyclic S4 (H2O)4 Cluster in Crystalline Li2(H2O)4(B12F12): Observation of B and E ν(OH) Bands and Coupling of Strong O–H···O and Weak O–H···F Vibrations

“…Chemists and physicists have studied small water clusters for decades. − This includes calculations of their structures, stabilities, and vibrational spectra by theorists and experimental vibrational spectroscopic studies of (H 2 O) n clusters in low-temperature matrices, generated by cold jet expansion, or confined in metal–organic frameworks or crystalline organic or inorganic compounds. − Reasons for studying (H 2 O) n clusters range from understanding cloud and ice formation as well as other atmospheric phenomena (including the radiation balance of the earth), a variety of biochemical processes, as a bridge from the gas phase to condensed phases, as a bridge from single-molecule adsorption to monolayer and bilayer adsorption of H 2 O to solid surfaces, , as models for bulk phenomena such as proton transport and solvation, and as an easily accessable experimental platform for studying isotope effects …”