Abstract
In the title compound, (C(6)H(8)N(4))[AuCl(4)]Cl, the 4,4'-bi(1H-pyrazol-2-ium) dication, denoted [H(2)bpz](2+), is situated across a centre of inversion, the [AuCl(4)](-) anion lies across a twofold axis passing through Cl-Au-Cl, and the Cl(-) anion resides on a twofold axis. Conventional N-H···Cl hydrogen bonding [N···Cl = 3.109 (3) and 3.127 (3) Å, and N-H···Cl = 151 and 155°] between [H(2)bpz](2+) cations (square-planar node) and chloride anions (tetrahedral node), as complementary donors and acceptors of four hydrogen bonds, leads to a three-dimensional binodal four-connected framework with cooperite topology (three-letter notation pts). The framework contains channels along the c axis housing one-dimensional stacks of square-planar [AuCl(4)](-) anions [Au-Cl = 2.2895 (10)-2.2903 (16) Å; interanion Au···Cl contact = 3.489 (2) Å], which are excluded from primary hydrogen bonding with the [H(2)bpz](2+) tectons.
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More From: Acta Crystallographica Section C Crystal Structure Communications
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