Synthesis, Crystal Structure and Fluorescent Property of Cis-bis[N,N-diethyl-N'-(p-nitrobenzoyl)thiourea-kS,O] Platinum(II) Complex

IF 0.4 4区化学 Q4 CRYSTALLOGRAPHY

Journal of Chemical Crystallography Pub Date : 2022-12-23 DOI:10.1007/s10870-022-00976-8

Xing-hong Duan, Bi-quan Su, Liang Xian, Li Sheng, Rong Tan

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引用次数: 2

Abstract

The reaction of the N,N-diethyl-N'-(p-nitrobenzoyl)thiourea with K₂[PtCl₄] results in the complex of configurational cis-[Pt(L-kS,O)₂], and structurally characterized by elemental analyses, FT-IR, ¹H NMR, ¹³H NMR, UV–Vis spectroscopy, and cis-[Pt(L-kS,O)₂] complex have been also characterized by a single-crystal X-ray diffraction study. The cis-[Pt(L-kS,O)₂] crystallizes in the monoclinic crystal system, space group P2₁/c, with Z = 4, and unit cell parameters, a = 15.09299(15) Å, b = 15.26600(14) Å, c = 14.39268(14) Å, α = 90°, β = 107.6347(11)° and γ = 90°. The single-crystal diffraction analysis of the complex shows that the molecular configuration of cis-[Pt(L-kS,O)₂] is a slightly distorted square-planar geometry, and both deprotonated ligands (L) contribute one O atom and one S atom coordinate with a central Pt(II) ion. The intermolecular interactions in the cis-[Pt(L-kS,O)₂] complex were analyzed using the Hirshfeld surface method, including 2D fingerprint plots. In addition, the fluorescence properties of the compounds at room temperature were also studied. The results show that both ligands and complexes have good fluorescence properties, and the fluorescence intensity of the coordination compound enhances.

Graphical Abstract

In this paper, single-crystal X-ray analysis shows cis-[Pt(L-kS,O)₂] belongs to monoclinic crystal system, space group P2₁/c. The connectivity of the ligand to the metal as 2:1 and the platinum atom is coordinated with two N,N-diethyl-N'-(p-nitrobenzoyl)thiourea ligands in a distorted square-planar geometry.

Abstract Image

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顺式双[N,N-二乙基-N'-(对硝基苯甲酰)硫脲- ks,O]铂(II)配合物的合成、晶体结构和荧光性能

N,N-二乙基-N′-(对硝基苯甲酰基)硫脲与K2[PtCl4]反应生成构型顺式-[Pt(L-kS,O)2]配合物，并通过元素分析、FT-IR、1H NMR、13H NMR、UV-Vis光谱和顺式-[Pt(L-kS,O)2]配合物进行了结构表征，并用单晶x射线衍射研究对其进行了表征。顺式-[Pt(L-kS,O)2]在空间群P21/c单斜晶系中结晶，Z = 4，晶胞参数a = 15.09299(15) Å， b = 15.26600(14) Å， c = 14.39268(14) Å， α = 90°，β = 107.6347(11)°，γ = 90°。配合物的单晶衍射分析表明，顺式-[Pt(L- ks,O)2]的分子构型是一个轻微扭曲的方平面几何，两个去质子配体(L)都有一个O原子和一个S原子与中心的Pt(II)离子配位。采用Hirshfeld表面法分析了顺式-[Pt(L-kS,O)2]配合物的分子间相互作用，包括二维指纹图谱。此外，还研究了化合物在室温下的荧光性质。结果表明，配体和配合物均具有良好的荧光性质，配位化合物的荧光强度增强。单晶x射线分析表明，顺式-[Pt(L-kS,O)2]属于单斜晶系，空间群P21/c。配体与金属的连度为2:1，铂原子与两个N,N-二乙基-N'-(对硝基苯甲酰)硫脲配体在扭曲的方形平面几何结构中配位。

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来源期刊

Journal of Chemical Crystallography 化学-光谱学

CiteScore

1.50

自引率

12.50%

发文量

审稿时长

6.3 months

期刊介绍： Journal of Chemical Crystallography is an international and interdisciplinary publication dedicated to the rapid dissemination of research results in the general areas of crystallography and spectroscopy. Timely research reports detail topics in crystal chemistry and physics and their relation to problems of molecular structure; structural studies of solids, liquids, gases, and solutions involving spectroscopic, spectrometric, X-ray, and electron and neutron diffraction; and theoretical studies.