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Series of Two‐Dimensional Hofmann‐DMF‐Type Compounds M (DMF) 2 M ′(CN) 4 ( M = Cd, Fe; M ′ = Ni, Pd, Pt): Syntheses, Structures, and Thermal Stabilities
Author(s) -
Zhang Min,
Li BinBin,
Sun Jing,
Kong XiaoPing,
Gu PanPan,
Chen YingYing,
Yuan AiHua
Publication year - 2014
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/zaac.201300352
Subject(s) - crystallography , monoclinic crystal system , octahedron , molecule , chemistry , type (biology) , group (periodic table) , crystal structure , space group , metal , x ray crystallography , diffraction , physics , optics , ecology , organic chemistry , biology
Five two‐dimensional Hofmann‐DMF‐type compounds M (DMF) 2 M ′(CN) 4 [ M = Cd, M ′ = Ni ( 1 ), Pd ( 2 ), Pt ( 3 ); M = Fe, M ′ = Ni ( 4 ), Pt ( 5 )] were synthesized by solution diffusion method. X‐ray diffraction analysis revealed that compounds 1 – 5 are isomorphous and crystallize in the monoclinic C 2/ m space group. The structure consists of corrugated cyanide‐bridged polymeric networks, in which the DMF‐ligated octahedral M and square‐planar M ′ atoms occupy special positions of the 2/ m site symmetry. In addition, the non‐hydrogen atoms of DMF molecules locate on a crystallographic mirror plane and coordinate to the axial sites of M atoms from both sides of the sheets. Thermal stabilities of such system are associated with the metal ions involved in structures and the host framework begins to collapse with the loss of coordinated DMF molecules.