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Updated: Jun 1, 2026
Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
1,4-Bis(carb-oxy-meth-yl)piperazine-1,4-diium bis-(dihydrogen phosphate) dihydrate
Lin Cheng1, Li-Min Zhang, Jian-Quan Wang
1Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
Abstract:
In the title salt, C(8)H(16)N(2)O(4) (2+)·2H(2)PO(4) (-)·2H(2)O, the piperazine ring is located around an inversion center and adopts a chair conformation. The dihydrogen phosphate anions and free water mol-ecules are linked via O-H⋯O hydrogen bonds into two-dimensional hydrogen-bonding layers, which are further connected through O-H⋯O and N-H⋯O hydrogen bonds involving the protonated piperazine into a three-dimensional supra-molecular network.
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