Category: piperazinesOn October 31, 2014 ,《Crystal growth, thermal and magnetic characterizations of a new ferromagnetic Ni(II) dimer》 appeared in Monatshefte fuer Chemie. The author of the article were Ben Salah, Assila Maatar; Walha, Sondra; Yahyaoui, Samia; Abdalrahman, Mahmoud; Turnbull, Mark M.; Mhiri, Tahar; Naili, Houcine. The article conveys some information:
Abstract: Single crystals of 1-methylpiperazine-1,4-diium hexaaquatetrachlorodinickel(II) dichloride, (C5H14N2)[Ni2Cl4(H2O)6]Cl2, were grown by hydrothermal techniques in aqueous solution The compound was characterized by DTA (TG-TDXD), single crystal x-ray diffraction, and variable temperature magnetic susceptibility. The compound crystallizes in the triclinic system (space group P1̅, Z = 2) with the following unit cell dimensions: a 6.611(3), b 8.776(4), c 17.457(8) Å, α 101.34(2), β 96.31(2), and γ 105.38(2)°. The structure was solved using 4,243 independent reflections and refined to R = 0.024. The structure of (C5H14N2)[Ni2Cl4(H2O)6]Cl2 can be described as mixed organic-inorganic layers along the [-101] direction. The Ni dimers show ferromagnetic exchange (J ∼ 15 K), while the interactions between the dimers are antiferromagnetic (J approx. -3 K). The 3-dimensional network is further linked by three types of H bonds (N-H···Cl, OW-H···Cl, and N-H···O), to build cation-anion cohesion. Dehydration of the precursor proceeds through three stages, leading to crystalline intermediary hydrate phases and an anhydrous compound Crystallog. data are given. In the part of experimental materials, we found many familiar compounds, such as 1-Methylpiperazine dihydrochloride(cas: 34352-59-5Category: piperazines)
1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Category: piperazines
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics