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Poly­[mercury(II)-di-μ-chloro-μ-pyrazine-κ2N:N′]

✍ Scribed by Nockemann, Peter ;Meyer, Gerd


Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
327 KB
Volume
60
Category
Article
ISSN
1600-5368

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Poly­[[di­bromo­mercury(II)]-di-μ-pyrazi
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The crystal structure of [HgBr 2 (Pyp) 2 ] n (Pyp = pyrazine, C 4 H 4 N 2 ) consists of almost linear HgBr 2 molecules which are linked by pyrazine molecules to form double strands of a coordination polymer in the [010] direction. The Hg and Br atoms lie on mirror planes.

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Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.040 A Ê R factor = 0.059 wR factor = 0.171 Data-to-parameter ratio = 23.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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The crystal structure of [HgBr 2 (Pyo)] n (Pyo = pyridazine, C 4 H 4 N 2 ) consists of strands of octahedrally coordinated mercuric centers asymmetrically bridged by bromide and connected by the two neighboring N atoms of pyridazine molecules to complete the octahedral coordination of mercury. The H

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Single-crystal X-ray study T = 296 K Mean (C-C) = 0.004 A R factor = 0.030 wR factor = 0.085 Data-to-parameter ratio = 12.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.