Sinteza in karakterizacija bakrovih spojin s 4-aminobenzoatom

Kožuh, Dea (author), Kozlevčar, Bojan (mentor)

Sintetizirala sem štiri bakrove(II) spojine z anionom 4-aminobenzojske kisline (L–) iz vodne raztopine. Te so CuL2 1, Cu(L)2(nia)2 2, Cu(L)2(3OHpy)2 3 in Cu(L)2(2apy)2 4; nia - nikotinamid, 3OHpy - 3-hidroksipiridin, 2apy - 2-aminopiridin. V bazi podatkov kristalnih struktur (CSD) nisem našla takšnih ali podobnih spojin. Ponovljivost sintez, praškovnih difraktogramov in IR spektrov kaže na čistost izoliranih spojin. Z izmerjenimi masnimi deleži CHN analize sem določila njihove predvidene formule glede na teoretične vrednosti teh deležev. IR spektri se skladajo s prisotnostjo vezi v uporabljenih piridinskih ligandih in v osnovnem anionu L–. Elektronski spektri spojin 1-4 so si podobni. To se sklada s podobno komplementarno barvo in predvideno podobno koordinacijsko sfero v strukturah izoliranih spojin.

• Language: Slovenian
• Keywords: koordinacijske spojine, baker(II), 4-aminobenzojska kislina, elementna analiza, spektroskopija
• Work type: Bachelor thesis/paper
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Year: 2026
• PID: 20.500.12556/RUL-186920
• Publication date in RUL: 07.09.2026

Secondary language

• Language: English
• Title: Synthesis and Characterization of Copper Compounds with 4-Aminobenzoate

Abstract

Four copper(II) compounds with the 4-aminobenzoic acid anion (L–) were synthesized from aqueous solutions. These are CuL2 1, Cu(L)2(nia)2 2, Cu(L)2(3OHpy)2 3 and Cu(L)2(2apy)2 4; nia - nicotinamide, 3OHpy - 3-hydroxypyridine and 2apy - 2-aminopyridine. No such or similar compounds were found in the Cambridge Structural Database (CSD). The reproducibility of the syntheses, powder diffractograms, and IR spectra shows purity of the isolated compounds. With the measured mass fractions of the CHN analysis, their expected formulas based on the theoretical values were determined. The IR spectra are in accordance with a presence of the applied pyridine ligands as well as the principal anion L characteristic bonds. The electronic spectra of 1-4 do not differ significantly. This is in agreement with similar complementary color and the proposed similar coordination sphere of the isolated compounds' structures.

• Keywords: coordination compounds, copper(II), 4-aminobenzoic acid, elemental analysis, spectroscopy