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Self‐Assembled 1D Water Cluster in a Supramolecular Architecture of Co II (Tartrate)(Phenanthroline/Bipyridine): An Assessment of Magnetic Property
Author(s) -
Manna Subal Chandra,
Zangrando Ennio,
Ribas Joan,
Chaudhuri Nirmalendu Ray
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700574
Subject(s) - chemistry , supramolecular chemistry , phenanthroline , crystallography , hydrogen bond , molecule , crystal structure , tartrate , coordination polymer , bipyridine , polymer , 4,4' bipyridine , antiferromagnetism , cluster (spacecraft) , inorganic chemistry , organic chemistry , physics , computer science , programming language , condensed matter physics
The coordination polymer, {[Co(tart)(phen)] · 6H 2 O} n ( 1 ) (tart, tartrate dianion; phen, 1,10‐phenanthroline) has been synthesized and characterized by single‐crystal X‐ray structure determination, magnetic measurement and thermal analysis. The structural analyses reveal two adjacent parallel 1D–[Co(phen)‐tart‐Co(phen)]– coordination polymers zipped through π‐π interactions. The lattice water molecules, forming a 1D water cluster, function as glue to form a 3D supramolecular network through an extended hydrogen bonding. A comparison highlighting the structural differences with the corresponding 2,2′‐bipyridine (bpy) derivative, {[Co(tart)(bpy)] · 5H 2 O} n ( 2 ) containing a less amount of lattice water molecules is discussed. The variable‐temperature magnetic study of 1 has been carried out and interpretation of the already reported complex 2 has been re‐visited: both polymers 1 and 2 show weak antiferromagnetic interaction. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)