title: catena-Poly[[tetra-kis-(1H-pyrazole-κN(2))copper(II)]-μ-hexa-fluoridosilicato-κ(2)F:F'].
abstract: In the title one-dimensional coordination polymer, [Cu(SiF(6))(C(3)H(4)N(2))(4)](n), the Cu(II) atom is coordinated by two hexafluoridosilicate F atoms and four pyrazole N atoms in a distorted trans-CuF(2)N(4) octa-hedral environment. The dihedral angle between the planes of the pyrazlole rings in the asymmetric unit is 74.4 (3)°. The hexa-fluoridosilicate dianion acts as a bridging ligand, connecting the Cu(II) atoms into a [1-10] chain. The Cu and Si atoms lie on special positions with 2/m site symmetry. In the crystal, intra-chain N-H⋯F hydrogen bonds occur and weak C-H⋯F inter-actions link the chains.
authors.affiliation: Department of Applied Chemistry, Yuncheng University, Yuncheng, Shanxi 044000,  People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.forename: Qiuping
authors.initials: Q
authors.lastname: Han
authors.forename: Xiaochuan
authors.initials: X
authors.lastname: Chai
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Chenzhong
authors.initials: C
authors.lastname: Yao