Chen, Xiao-Xian’s team published research in Inorganic Chemistry in 2022 | CAS: 109-01-3

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

In 2022,Chen, Xiao-Xian; Liu, De-Xuan; Gong, Ya-Ping; Wang, Sha-Sha; Zhang, Wei-Xiong; Chen, Xiao-Ming published an article in Inorganic Chemistry. The title of the article was 《Above-Room-Temperature Ferroelastic Phase Transitions in Two Tetrafluoroborate-Based Hexagonal Molecular Perovskites》.Name: 1-Methylpiperazine The author mentioned the following in the article:

ABX3-type mol. perovskites provide an important platform to tune phase transitions, via judiciously choosing A-, B-, and X-site components, to approach advanced functional materials for applications. Although tetrafluoroborate can act as X-site component to assemble ten instances of ABX3 mol. perovskites, only two of them possess hexagonal perovskite structures. Herein, we report two tetrafluoroborate-based hexagonal mol. perovskites, A[Na(BF4)3], by judiciously choosing two different A-site cations: 1-methyl-1,4-diazabicyclo[2.2.2]octane-1,4-diium (Hmdabco2+) for 1 and 1-methylpiperazine-1,4-diium (H2mpz2+) for 2. They have high-temperature phases in the same space group (P63/mmc) revealing highly disordered A-site cations. Upon cooling, 1 undergoes two-step P63/mmc ↔ P3̅c1 ↔ P21/n transitions at 344 and 338 K, resp., including a ferroelastic one (3̅mF2/m) accompanied by a spontaneous strain of 0.013. In contrast, the smaller H2mpz2+ cation with more adoptable conformations induces a one-step sharp P63/mmc ↔ P21/c ferroelastic transition (6/mmmF2/m(s)) at 418 K in 2, leading to more significant symmetry breaking and a considerable spontaneous strain of 0.129. This study provides important clues to modulate structural phase transitions by tuning diverse components for the multicomponent dense hybrid crystals. In the experiment, the researchers used many compounds, for example, 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