Phổ 1H NMR của dãy phức chất [PtCI(eugenol-1H)(amin)| (amin: pyridin, 4-Me-pyridin, quinolin, p-cloanilin, p-toluidin)

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Tác giả: Thị Thanh Chi Nguyễn, Thúy Hằng Trương

Ngôn ngữ: vie

Ký hiệu phân loại: 547.8 Other organic substances

Thông tin xuất bản: Tạp chí khoa học & công nghệ Việt Nam, 2020

Mô tả vật lý: 45296

Bộ sưu tập: Metadata

ID: 492149

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Chủ đề

Phổ 1H NIR của năm phức chất có công thức [PICI(eugenol-1H)(amin) [amin: pyridin (2), 4-Me-pyridin (3), quinolin (4), p-cloanilin (5), p-toluidin (6) trong dung môi d-axeton và CDCI đã đưoc nghiên cứu. Kết quả cho thấy, trong dung môi d,-cloroform các phức chất 2+5 cho hai bộ tín hiệu ổn định theo thời gian ứng với hai tương tác liên phân tử mạnh (liên kết hydro Cl,C-H... CIP((II) và liên kết halogen Cl,HC-C...Pt(II)) đối với 2, 3, 4 và hai liên kết hydro mạnh (liên kết nội phân tử NH,...CI-Pt(II) và liên kết liên phân tử CIC-H...Cl-anilin) đối với phức chất 5. Trong khi đó, trong dung môi d-axeton phức chất 5 và 6 có chứa các dẫn xuất của anilin, xảy ra sự đồng phân hóa nhóm amin chuyển từ vị trí cis sang vị trí trans so với nhánh allyl của eugenol. Quá trình chuyển đổi này đạt đến trạng thái cân bằng sau 48 giờ.The 1H NMR spectra of five complexes of the genenal formula [PtCl(eugenol-1H)(amine)] (amine: pyridine (2), 4-Me-pyridine (3), quinoline (4), p-cloaniline (5), p-toluidine (6)) in d6-acetone and CDCl3 solvents were studied. The result showed that in d1-chloroform, complexes 2÷5 gave two stable over time sets of signals which corresponded with two existence forms of the complexes in the solution: two strong intermolecular interactions (Cl3C-H...ClPt(II) hydrogen bond and Cl2HC-Cl...Pt(II) halogen bond) for 2, 3, 4
and two strong hydrogen bonds (NH2...Cl-Pt(II) intramolecular bond and Cl3C-H...Cl-aniline intermolecular bond) for 5. Meanwhile, in d6-acetone solvent, complexes containing aniline derivatives, 5 and 6, revealed an isomerization, that was, the amine group transferred from cis position to trans position compared with the allyl group of eugenol. This conversion process reached an equilibrium after 48 hours.

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