Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 1049026-49-4, Name is 2-Bromo-5-(methylthio)pyrazine, molecular formula is , belongs to Pyrazines compound. In a document, author is Zhang, Dan, Formula: C5H5BrN2S.
Synthesis, crystal structures, fluorescence, and magnetic properties of 1,3,5-benzenetricarboxylate coordination polymers
Four new coordination polymers, {[Mn-3(BTC)(2)(4-pp)(6)(H2O)(2)]center dot(4-pp)(2)(H2O)(2)}(n) 1, [Cu-3(BTC)(2)(dpa)(2)](n) 2, {[Zn-3(BTC)(2)(4-pp)(6)]center dot(H2O)}(n) 3, and [Ag-2(HBTC)(Pz)(1/2)](n) 4, were synthesized under pH-controlled solvothermal conditions with symmetrical polycarboxylic acid of 1,3,5-benzenetricarboxylic acid (H3BTC) and nitrogen-containing heterocyclic compounds, pyrazine (pz), 4-phenylpyridine (4-pp), and 4,4 ‘-dipyridylamine (dpa). Complexes 1-4 were characterized by single-crystal X-ray diffraction, elemental analysis, IR spectra, powder X-ray diffraction, thermal gravimetric analysis, photoluminescence, and magnetic susceptibility. Complexes 1 and 3 show two-dimensional (2-D) layered structures, 2 exhibits a three-dimensional (3-D) network structure, and 4 is a one-dimensional (1-D) polymeric chain structure. Magnetic susceptibility measurements indicate that 1 shows weak antiferromagnetic coupling between Mn-II ions and 2 exhibits ferromagnetic interaction between Cu-II ions. The photoluminescence properties of 3 and 4 are similar to the ligand H3BTC.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1049026-49-4, in my other articles. Formula: C5H5BrN2S.