Abstract
The title crystal, [HgZn(NCSe)4]n, a coordination polymer, has a diamond-like network. In the crystal, the metal ions, Zn2+ and Hg2+, are both located on fourfold inversion axes and mimic the role of C atoms in the structure of diamond, and the linear selenocyanate bridges replace the C—C bonds. The C—N—Zn unit is almost linear and the C—Se—Hg unit is nearly a right angle. Thus, the HgZn4 (or ZnHg4) arrangement is midway between a tetrahedron and a square plane, with two types of Hg—Zn—Hg (or Zn—Hg—Zn) angles of 92.38 (6) and 156.45 (6)°.
Highlights
The title crystal, [HgZn(NCSe)4]n, a coordination polymer, has a diamond-like network
The metal ions, Zn2+ and Hg2+, are both located on fourfold inversion axes and mimic the role of C atoms in the structure of diamond, and the linear selenocyanate bridges replace the C—C bonds
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BR2230)
Summary
R[F 2 > 2(F 2)] = 0.026 wR(F 2) = 0.053 S = 0.86 1244 reflections 33 parameters Ámax = 1.35 e A À3. Key indicators: single-crystal X-ray study; T = 293 K; mean (N–C) = 0.007 A; R factor = 0.026; wR factor = 0.053; data-to-parameter ratio = 37.7. The title crystal, [HgZn(NCSe)4]n, a coordination polymer, has a diamond-like network. The metal ions, Zn2+ and Hg2+, are both located on fourfold inversion axes and mimic the role of C atoms in the structure of diamond, and the linear selenocyanate bridges replace the C—C bonds. The C—N—Zn unit is almost linear and the C—Se—Hg unit is nearly a right angle. The HgZn4 (or ZnHg4) arrangement is midway between a tetrahedron and a square plane, with two types of Hg—Zn—Hg (or Zn—Hg—Zn) angles of 92.38 (6) and 156.45 (6)
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