Lattice-water tweaked Cis-Trans isomerism of a copper(II)-dipyridylamine-azide complex and their aggregation features

AIE active fluorescent organic nanoparticles based optical detection of Cu2+ ions in pure water: a case of aggregation–disaggregation reversibility

“…8b, ESI†) indicating the existence of bivalent copper with a spin of . 77,78 Furthermore, FE-SEM images of the copper complex were recorded to assess the loss of the aggregated-nature of the FONs (Fig. 9).…”

“…When the metal ion is copper, contamination is obvious due to consistent use of the metal in plumbing and industrial usage. 1–5 Hence, recognition of Cu 2+ ions particularly in a 100% water medium has become an intriguing topic over recent decades. 1–4 Now, among common Cu 2+ ion detection techniques like inductively coupled plasma mass spectroscopy (ICP-MS), 6 atomic absorption spectrometry, 7 inductively coupled plasma atomic emission spectrometry (ICP-AES), 8 anodic stripping voltammetry (ASV), 9 and voltammetry, 10 fluorescent detection has shown some additional benefits like low-cost and reusable chemosensors, excellent selectivity, sufficient sensitivity, ease of operation, and biocompatible in vivo detection.…”

Chelation therapy-inspired design of a water-stable fluorescent probe for the effectual monitoring of copper(ii) ions in real water

“…The higher energy electronic band at 271 nm probably originated from π–π* electronic transitions, while the lower energetic electronic bands at 333 and 381 nm are due to the n–π* electronic transition. 53,54 The n–π* transition may occur due to the conjugation between a lone pair on the N atom of the imine bond and the π-bond of the benzene ring.…”

Electrocatalytic hydrogen production activity with a copper(ii)-dipyridylamine complex in acidic water

“…The copper( ii ) complex was synthesized by the reported procedure. 56 Hydrated copper( ii ) chloride and dpa were mixed, followed by the addition of solid sodium azide in 1 : 2 : 1 stoichiometry under a stirring condition in a MeOH–H 2 O for 20 minutes (Scheme 1). The green-coloured reaction mixture was filtered and left undisturbed for slow evaporation to obtain the crystalline product.…”