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Synthesis, Crystal Structures, and Properties of the Copper(I) Halide Coordination Polymers 2[CuX(μ‐2‐chloropyrazine‐N, N')] (X = Cl, Br), 1[CuI(2‐chloropyrazine‐N)], and [Cu 2 I 2 (2‐chloropyrazine)]
Author(s) -
Näther Christian,
Wriedt Mario,
Jeß Inke
Publication year - 2002
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200202)628:2<394::aid-zaac394>3.0.co;2-r
Subject(s) - halide , copper , thermogravimetry , crystallography , chemistry , thermal decomposition , crystal structure , differential thermal analysis , coordination polymer , molecule , single crystal , diffraction , inorganic chemistry , organic chemistry , physics , optics
The new copper coordination polymers 2[CuX(μ‐2‐chlor‐opyrazine‐N, N')] (X = Cl ( I ), Br ( II ), 1[CuI(2‐chloropyrazine‐N)] ( III ) and [Cu 2 I 2 (2‐chloropyrazine)] ( IV ) has been prepared by the reaction of the copper(I) halides with 2‐chloropyrazine at roomtemperature or under hydrothermal conditions. The crystal structures of the 1:1 compounds I and II consist of zig‐zag CuX single chains running parallel to the crystallographic a‐axis which are linked by the 2‐chloropyrazine spacer molecules to sheets parallel to (010). For the iodine compound III a one‐dimensional structure is found which consists of CuX double chains running parallel to the crystallographic a‐axis. The thermic properties of all compounds were investigated in different gas atmospheres using simultaneously differential thermal analysis and thermogravimetry (DTA‐TG) as well as temperature resolved X‐ray powder diffraction. On heating, the 1:1 compounds I and II decompose directly to the corresponding copper(I) Halides, whereas the thermal decomposition of III occcur via IV as an intermediate.