Using highly reactive tellurium precursors to synthesize organic hybrid indium-tellurides

• Published in: Journal of solid state chemistry 2021-06, Vol.298, p.122109, Article 122109
• Main Authors: Xiao, Lu-Lu, Wang, Ning, Zheng, Bing, Yu, Ji-Ming, Yu, Ji-Peng, Wang, Huan, Xu, Qi, Cheng, Fang-Fang, Xiong, Wei-Wei
• Format: Article
• Language: English
• Subjects: Highly reactive tellurium precursors; One-dimensional chains; Organic hybrid indium-tellurides
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/j.jssc.2021.122109

By using two highly reactive tellurium precursors Te-DMF and Te-DMAC (DMF ​= ​N,N-dimethylformamide, DMAC ​= ​N,N-dimethylacetamide) as tellurium sources, three organic hybrid indium-tellurides featuring one-dimensional chains were solvothermally synthesized, namely [Hpip]2 [In(en)3][In5Te10] (1), [HDBU][InTe(Te2)] (2), [Hmd][InTe2] (3) (en ​= ​ethylenediamine, pip ​= ​piperazine, DBU ​= ​1,8-diazabicyclo-[5.4.0]undec-7-ene, md ​= ​2-methyl-1,3-diazinane). In particular, compound 1 shows an unique right-handed double helical [In5Te10]n5n- chain. It is worth noting that the two highly reactive tellurium precursors Te-DMF and Te-DMAC are crucial to the synthesis of 1–3, since no crystals can be isolated when replacing Te-DMF and Te-DMAC with tellurium powder. We believe that these soluble tellurium precursors could act as ideal tellurium sources for the preparation of new organic hybrid metal tellurides. [Display omitted] •Three indium-tellurides were synthesized in the solutions of Te-DMF and Te-DMAC.•Compound 1 shows an unique right-handed double helical [In5Te10]n5n- chain.•The two highly reactive tellurium precursors are crucial to the synthesis of 1–3.