Bis(4-aminopyridinium) dichromate(VI)
نویسندگان
چکیده
The asymmetric unit of the title salt, (C5H7N2)2[Cr2O7], contains four independent cations and two independent dichromate anions. The crystal structure consists of discrete dichromate anions with an eclipsed conformation stacked in layers parallel to (010) at y = 1/4 and y = 3/4. These layers are linked via 4-amino-pyridinium cations by N-H⋯O and weak C-H⋯O hydrogen bonds, forming a three-dimensional supra-molecular network. In addition, π-π inter-actions are present in this structure; the shortest distance separating mean planes through 4-amino-pyridinium cations is 3.679 (6) Å.
منابع مشابه
Bis(benzyltrimethylammonium) dichromate(VI)
The asymmetric part of the title compound, (C(10)H(16)N)(2)[Cr(2)O(7)], contains one cation and a half of the dichromate dianion, which has a staggered conformation and exhibits disorder of the bridging O atom around the inversion center over two positions in a 1:1 ratio. Weak inter-molecular C-H⋯O hydrogen bonds link cations and anions into a three-dimensional structure.
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