The author of 《Synthesis, crystal structure, vibrational, optical properties, and a theoretical study of a new Pb(II) complex with bis(1-methylpiperazine-1,4-diium): [C5H14N2]2PbCl6·3H2O》 were Mrad, Mohamed Lahbib; Belhajsalah, Souhir; Abdelbaky, Mohammed Said M.; Garcia-Granda, Sergio; Essalah, Khaled; Ben Nasr, C.. And the article was published in Journal of Coordination Chemistry in 2019. Name: 1-Methylpiperazine The author mentioned the following in the article:
A study of the solid-state x-ray structure of the new organic-inorganic compound [C5H14N2]2PbCl6·3H2O shows a layered organization of the (PbCl6)4- anions, with (R2NH2)+ groups and water mols. developed in the [001] plane at x = (2n + 1)/4. The crystal structure is stabilized by N – H···Cl, N – H···O, O – H···Cl, O – H···O, and C – H···Cl hydrogen bonds. The powder x-ray diffraction and X-ray photoelectron spectroscopic (XPS) analyses confirm the phase purity of the crystal sample. The intermol. contacts are quantified using the Hirshfeld surfaces computational method. The major inter-contacts contributing to the Hirshfeld surfaces are H…Cl, H…H, and O…H. The vibrational modes were identified and assigned by IR and Raman spectroscopies. The optical properties were studied by UV-visible and photoluminescence spectroscopic studies. The compound was characterized by thermal anal. to determine its thermal behavior with respect to the temperature Finally, XPS anal. is reported for analyzing the surface chem. of [C5H14N2]2PbCl6·3H2O. In the experiment, the researchers used 1-Methylpiperazine(cas: 109-01-3Name: 1-Methylpiperazine)
1-Methylpiperazine(cas: 109-01-3) can be used as mimic template in the preparation of molecularly imprinted microspheres (MIMs). It was also used to prepare the difunctional strong anion-exchange stationary phase from a 1,4-diazacyclohexane derivative..Name: 1-Methylpiperazine
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics