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(4,4′‐Bipyridine)mercury(II) Coordination Polymers, Syntheses, and Structures
Author(s) -
Morsali Ali,
Zhu LongGuan
Publication year - 2006
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200690015
Subject(s) - chemistry , 4,4' bipyridine , crystallography , crystal structure , zigzag , polymer , coordination polymer , mercury (programming language) , atom (system on chip) , bipyridine , ion , ligand (biochemistry) , stereochemistry , molecule , geometry , organic chemistry , hydrogen bond , computer science , programming language , biochemistry , mathematics , receptor , embedded system
Mercury(II) complexes with 4,4′‐bipyridine (4,4′‐bipy) ligand were synthesized and characterized by elemental analysis, and IR, 1 H‐ and 13 C‐NMR spectroscopy. The structures of the complexes [Hg 3 (4,4′‐bipy) 2 (CH 3 COO) 2 (SCN) 4 ] n ( 1 ), [Hg 5 (4,4′‐bipy) 5 (SCN) 10 ] n ( 2 ), [Hg 2 (4,4′‐bipy) 2 (CH 3 COO) 2 ] n (ClO 4 ) 2 n ( 3 ), and [Hg(4,4′‐bipy)I 2 ] n ( 4 ) were determined by X‐ray crystallography. The single‐crystal X‐ray data show that 2 and 4 are one‐dimensional zigzag polymers with four‐coordinate Hg‐atoms, whereas 1 is a one‐dimensional helical chain with two four‐coordinate and one six‐coordinate Hg‐atom. Complex 3 is a two‐dimensional polymer with a five‐coordinate Hg‐atom. These results show the capacity of the Hg‐ion to act as a soft acid that is capable to form compounds with coordination numbers four, five, and six and consequently to produce different forms of coordination polymers, containing one‐ and two‐dimensional networks.