Spectroscopic analysis of the complex compound formed by cobalt(ii) chloride with the 2-AMINO-5-CHLOROBENZOXAZOLE ligand

USMANOVA, Maftuna, ABDULLAEVA, Gulchehra, RAZZOQOVA, Surayyo, KADIROVA, Shaxnoza

Ўзбекистон Миллий университети хабарлари · 2026-yil

Annotatsiya

This study developed a targeted method for the synthesis of a new coordination compound with the composition [CoL2Cl2] basedon cobalt(II) chloride and the 2-amino-5-chlorobenzoxazole ligand in an ethanolic medium (at a molar ratio of 1:2) (reaction yield76%, Tm.p. = 115–117 °C. The composition, structure, and physicochemical properties of the synthesized complex werecomprehensively investigated using infrared (IR) spectroscopy, thermal analysis (TGA/DTA), scanning electron microscopy, andenergy-dispersive X-ray spectroscopy (SEM-EDS). According to the results of the IR spectral analysis, the stretching vibrationfrequency of the azomethine C=N group was found to shift toward the lower-frequency region compared with the free ligand,indicating coordination of the ligand to the central Co(II) ion through the endocyclic nitrogen atom. The thermal analysis(TGA/DTA) data demonstrated the thermal stability of the complex up to 200 °C, as well as the multistage nature of itsdecomposition. The SEM-EDS microanalysis results confirmed the homogeneous distribution of all elements (Co, Cl, C, N, O) inthe sample and indicated that the investigated sample represents a new coordination compound rather than a mechanical mixture

Maqola ma’lumotlari
MualliflarUSMANOVA, Maftuna, ABDULLAEVA, Gulchehra, RAZZOQOVA, Surayyo, KADIROVA, Shaxnoza
JurnalЎзбекистон Миллий университети хабарлари
NashriyotЎзбекистон Миллий университети
ISSN2181-7324, 3093-8996
Nashr sanasi2026-09-24
Jild3
Son3.3
Betlar382-385
TilIngliz
Ilmiy sohaKimyo
Indeksga qo‘shilgan2026-09-25

Maqolaning asl sahifasi

Kalit so‘zlar

coordination compounds, cobalt(II), 2-amino-5-chlorobenzoxazole, IR spectroscopy, TGA/DTA, SEM-EDS, surface morphology, координационные соединения, кобальт(II), 2-амино-5-хлорбензоксазол, ИК-спектроскопия, TGA/DTA, SEM-EDS, морфология поверхности, Koordinatsion birikmalar, kobalt(II), 2-amino-5-xlorbenzoksazol, IQ-spektroskopiya, TGA/DTA, SEM-EDS, sirt morfologiyasi.

Ilmiy soha

Kimyo

Iqtibos keltirish

APAUSMANOVA, Maftuna, ABDULLAEVA, Gulchehra, RAZZOQOVA, Surayyo, & KADIROVA, Shaxnoza (2026). SPECTROSCOPIC ANALYSIS OF THE COMPLEX COMPOUND FORMED BY COBALT(II) CHLORIDE WITH THE 2-AMINO-5-CHLOROBENZOXAZOLE LIGAND. Ўзбекистон Миллий университети хабарлари, 3(3.3), 382-385. https://journals.nuu.uz/index.php/actanuuz/article/view/15068
GOST (OAK)USMANOVA, Maftuna va b. SPECTROSCOPIC ANALYSIS OF THE COMPLEX COMPOUND FORMED BY COBALT(II) CHLORIDE WITH THE 2-AMINO-5-CHLOROBENZOXAZOLE LIGAND // Ўзбекистон Миллий университети хабарлари. – 2026. – T. 3, № 3.3. – P. 382-385.
MLAUSMANOVA, Maftuna, ABDULLAEVA, Gulchehra, RAZZOQOVA, Surayyo, and KADIROVA, Shaxnoza. “SPECTROSCOPIC ANALYSIS OF THE COMPLEX COMPOUND FORMED BY COBALT(II) CHLORIDE WITH THE 2-AMINO-5-CHLOROBENZOXAZOLE LIGAND.” Ўзбекистон Миллий университети хабарлари, 3(3.3), 382-385, 2026. https://journals.nuu.uz/index.php/actanuuz/article/view/15068
ChicagoUSMANOVA, Maftuna, ABDULLAEVA, Gulchehra, RAZZOQOVA, Surayyo, and KADIROVA, Shaxnoza. “SPECTROSCOPIC ANALYSIS OF THE COMPLEX COMPOUND FORMED BY COBALT(II) CHLORIDE WITH THE 2-AMINO-5-CHLOROBENZOXAZOLE LIGAND.” Ўзбекистон Миллий университети хабарлари, 3(3.3), 382-385 (2026). https://journals.nuu.uz/index.php/actanuuz/article/view/15068
HarvardUSMANOVA, Maftuna, ABDULLAEVA, Gulchehra, RAZZOQOVA, Surayyo, and KADIROVA, Shaxnoza (2026) ‘SPECTROSCOPIC ANALYSIS OF THE COMPLEX COMPOUND FORMED BY COBALT(II) CHLORIDE WITH THE 2-AMINO-5-CHLOROBENZOXAZOLE LIGAND’, Ўзбекистон Миллий университети хабарлари, 3(3.3), 382-385. https://journals.nuu.uz/index.php/actanuuz/article/view/15068
BibTeX
@article{usmanovamaftuna2026,
  title = {SPECTROSCOPIC ANALYSIS OF THE COMPLEX COMPOUND FORMED BY COBALT(II) CHLORIDE WITH THE 2-AMINO-5-CHLOROBENZOXAZOLE LIGAND},
  author = {USMANOVA, Maftuna and ABDULLAEVA, Gulchehra and RAZZOQOVA, Surayyo and KADIROVA, Shaxnoza},
  journal = {Ўзбекистон Миллий университети хабарлари},
  year = {2026},
  volume = {3},
  number = {3.3},
  pages = {382-385},
  url = {https://journals.nuu.uz/index.php/actanuuz/article/view/15068}
}

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