This work describes the fabrication of a carbazole derivative 1 namely (E)-5-(diethylamino)-2-((9-ethyl-9H-carbazol-3-yl)imino)methyl)phenol(1) based colorimetric probe for the selective detection of copper (II) ions. The as-prepared carbazole derivative was characterized using various spectral techniques including UV–visible absorption, Emission, FT-IR, ¹H NMR, ¹³C NMR and mass spectra. The colorimetric chemosensing potential of the synthesized carbazole derivative 1 to detect Cu²⁺ ions in a solution of different cations at different emission wavelengths based on photo-induced electron transfer (PET) mechanism was undertaken. In addition, the probe 1 showed significant DPPH scavenging activity. Antimicrobial and anti-inflammatory activities of the carbazole derivative 1 were also assessed. The selectivity of probe 1 towards Cu²⁺ ions could be exploited to reduce copper induced toxicity.

这项工作描述了基于 (E)-5-(二乙氨基)-2-((9-乙基-9H-咔唑-3-基)亚氨基)甲基)苯酚(1) 的咔唑衍生物 1 的比色探针的制备选择性检测铜 (II) 离子。使用各种光谱技术对所制备的咔唑衍生物进行了表征，包括紫外-可见吸收、发射、FT-IR、¹ H NMR、¹³ C NMR 和质谱。基于光诱导电子转移（PET）机制，对合成的咔唑衍生物1的比色化学传感电位进行了检测不同阳离子溶液中不同发射波长的Cu ^2+离子。另外，探头1表现出显着的 DPPH 清除活性。还评估了咔唑衍生物1的抗菌和抗炎活性。可以利用探针1对Cu ²⁺离子的选择性来降低铜诱导的毒性。