Synthetic Route of C6H5Cl2NO. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Picolinoyl chloride hydrochloride, is researched, Molecular C6H5Cl2NO, CAS is 39901-94-5, about Homochiral crystallization of helical coordination chains bridged by achiral ligands: can it be controlled by the ligand structure?. Author is Wang, Yong-Tao; Tong, Ming-Liang; Fan, Hai-Hua; Wang, He-Zhou; Chen, Xiao-Ming.
Homochiral/heterochiral crystallizations of helical chiral polymer chains bridged by achiral poly-pyridyl ligands dependent on the structures of the bridging ligands and independent on the solvent are described, implying a possible strategy to design achiral crystals of helical chains using chiral bridging ligands. Prepared and characterized crystallog. are the 1:1 adjacent right- and left-handed helical chains of [CdI2(L1)]n (L1 = 2-(2-pyridinyl)-5-(3-pyridinyl)-1,3,4-oxadiazole), and homochiral (P)-right-handed helical chains of [CdI2(L2)]n, and of {[CdI2(L2)(H2O)]·2DMF}n (L2 = 2-(2-pyridinyl)-5-(4-pyridinyl)-1,3,4-oxadiazole). The latter two complexes display modest powder SHG (second harmonic generation) efficiencies approx. 0.4 and 0.5 times than that of potassium dihydrogen phosphate, resp.
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