Synthesis route and structural, magnetic, optical, and non-linear optical properties of triboluminescent [Cu(NCS)(py)2(PPh3)] complex

Abstract

Transition-metal coordination compounds exhibit many unique properties, which can be used in a broad range of state-of-the-art technologies. One of these interesting complexes is copper(I) thiocyanate bipyridine triphenylphosphine [Cu(NCS)(py)2(PPh3)]. Herein, we report detailed structural, magnetic, spectroscopic, and nonlinear optical properties, as well as the optimized synthesis route of the [Cu(NCS)(py)2(PPh3)] complex. Performed Raman, infrared (IR), X-ray photoelectron (XPS), and X-ray diffraction (XRD) spectroscopy provide valuable data about the synthesis time dependence and general structural characteristics. Optical studies describe in detail the photoluminescence properties and emission temperature dependence behavior. For the first time, the magnetic and third-order nonlinear optical measurements of the [Cu(NCS)(py)2(PPh3)] complex were performed. Additionally, thermogravimetric analysis was conducted to detail the thermal stability of the complex. The results constitute a detailed description of the physical properties of the [Cu(NCS)(py)2(PPh3)] complex, which is an essential tool for designing sensing solutions based on the triboluminescent properties of the investigated compound.