Synthesis and Characterization of Two Novel Naphthalenediimide/ Zinc Phosphonate Crystalline Materials Precipitated from Different Solvents

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Tác giả chính:	Poly-Anna Vera Melo, Barbra
Ngày xuất bản:	2024
Tác giả khác:	Fernando Gregório Junior, Denis, Troilo de Oliveira, Matheus, de Jesus Trindade, Fabiane, van de Streek, Jacco, Furlan Ferreira, Fabio, Brochsztain, Sergio
Định dạng:	Article
Ngôn ngữ:	eng
Nguồn:	Repositório Comum do Brasil - Deposita
Download full:	https://deposita.ibict.br/handle/deposita/690
Tóm tắt:	Hybrid naphthalenediimide/zinc phosphonate materials (NDI/Zn) were prepared by mixing solutions of N,N′-bis(2- phosphonoethyl)-1,4,5,8-naphthalenediimide (PNDI) and zinc nitrate, resulting in the precipitation of the desired compounds. Samples precipitated from water and N,N-dimethylformamide (DMF) were produced. The obtained samples had the expected elemental composition, and the presence of naphthalenediimides (NDI) was ascertained by infrared and UV−visible spectroscopy. All the samples were crystalline, according to powder X-ray diffraction. Nitrogen adsorption isotherms showed the presence of porosity in the NDI/Zn samples. Mesopores with a diameter = 4.1mm were present in the sample from DMF, with total pore volume reaching 0.13 cm3/g.