Sonochemical synthesis of a trinuclear Cu(ii) complex with open coordination sites for the differentiable optical detection of volatile amines

Abstract

A trinuclear Cu(ii) complex with open coordination sites for the differentiable optical detection of volatile amines.

Synthesis, X-ray structures, and magnetic properties of seven polynuclear Cu(ii) complexes containing pyrazole-3,5-dicarboxylate with various ancillary ligands

“…The Cu1 and Cu2 display a square pyramidal geometry (t 5 = 0.022 for Cu1 and t 5 = 0.053 for Cu2, Addison's parameter t 5 = 0 for square pyramid and t 5 = 1 for trigonal bipyramid). 48,49 Each Cu(II) center is occupied by two carboxylate oxygen atoms and two pyrazole nitrogen atoms from two different pzdc 3À ligands in the basal position as well as one coordinated water molecule in the apical site (Fig. 1a).…”

Variations in the structural composition of pyrazole-3,5-dicarboxylato Cu(ii) complexes with 1,2-di(4-pyridyl)ethane synthesized under different conditions

“…Cu1 and Cu2 are five-coordinated, adopting a distorted square pyramidal geometry (τ 5 = 0.044 (0.011 for 2) for Cu1 and τ 5 = 0.060 (0.061 for 2) for Cu2; Addison's parameter τ 5 = 0 for square pyramidal and τ 5 = 1 for trigonal bipyramidal). 39,40 Each Cu(II) ion is surrounded by two carboxylate oxygen atoms and two pyrazole nitrogen atoms from two different pzdc 3− ligands in the equatorial plane. The axial position is occupied by a coordinated water molecule.…”

Luminescence turn-on sensor for the selective detection of trace water and methanol based on a Zn(ii) coordination polymer with 2,5-dihydroxyterephthalate

“…[4][5][6] The reversible structural transformation with chromotropism of CPs has been attracting great attention due to their vital importance for application in thermo-sensors, chemical sensors, optical sensors, color indicators, and molecular switches. [7][8][9][10] There are three main categories of structural changes: solid-state, solution-based, and solvent-mediated. [11][12][13] The solvent-mediated structural transformation in CPs is rarely reported, owing to the dissolverecrystallize process of crystallization, which commonly induces signicant changes in their structures and properties.…”