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A New Chair‐shaped Conformation Containing HgHgOHgHgO: Synthesis and Structure of Hg 4 ( L 2 ) 2 (NO 3 ) 4 ( L 2 = morpholin‐4‐ylpyridin‐2‐ylmethyleneamine)
Author(s) -
Dehghanpour Saeed,
Taleghani Somayeh
Publication year - 2010
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.200900498
Subject(s) - crystal structure , chemistry , molecule , denticity , crystallography , moiety , mercury (programming language) , ligand (biochemistry) , x ray crystallography , stereochemistry , diffraction , biochemistry , receptor , physics , organic chemistry , optics , computer science , programming language
. The complex Hg 4 ( L 2 ) 2 (NO 3 ) 4 ( 1 ) ( L 2 = morpholin‐4‐ylpyridin‐2‐ylmethyleneamine) has been synthesized and characterized by CHN analysis, IR, and UV/Vis spectroscopy. The crystal structure of 1 was determined using single‐crystal X‐ray diffraction. The crystal structure of 1 contains four mercury atoms, four nitrate anions (two terminal and two bridge ones) and two L 2 ligand molecules. A chair shape, six‐membered ring is formed with the sequence OHgHgOHgHg built from Hg–Hg dumbbells and oxygen atoms from the nitrate co‐ligands. In the crystal structure, the asymmetric unit of the compound is built up by one‐half of the molecule. It contains the Hg 2 2+ moiety with a mercury–mercury bonded core, in which one diimine ligand is coordinated to one of the mercury atoms. The nitrate anions act as anisobidentate and bidentate ligands.