Protonated 4′-(2-pyridyl)-2,2′:6′,2"-terpyridine and its Fe(II) bischelates: Syntheses and molecular structures

被引:8
作者
Padhi, Sumanta Kumar [1 ]
Sahu, Rojalin [1 ]
Saha, Dipankar [1 ]
Manivannan, Vadivelu [1 ]
机构
[1] Indian Inst Technol Guwahati, Dept Chem, Gauhati 781039, India
关键词
Terpyridine; pi...pi interaction; Anion...pi interaction; Magnetism; Water tetramer; Water pentamer; INDUCED SPIN TRANSITION; IRON(II) COMPLEXES; COORDINATION POLYMERS; TERPYRIDINE; LIGANDS; LUMINESCENCE; ALKYLATION; REACTIVITY; DRIVEN; SALTS;
D O I
10.1016/j.ica.2011.01.111
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Compounds of the molecular formulae, [LH3](NO3)(3) (1), [Fe(LH)(2)](PF6)(4)center dot 5H(2)O (2), [Fe(L)(2)][ Fe(L)(LH)](PF6)(5)center dot H2O (3), [Fe(L)(2)][Fe(L)(LH)](BF4)(5)center dot 2H(2)O (4) and [Fe(L)(2)](Cr2O7)center dot 6H(2)O (5) have been synthesized using 4'-(2-pyridyl)-2,2':6',2 ''-terpyridine (L). The molecular structures of all the compounds were determined. The Fe(II) complexes are high spin in nature at room temperature and upon cooling a gradual spin-transition is observed. Among 1-5, hydrogen-bonding, pi...pi, and anion...pi interactions as well as water tetramer and pentamer are present in the molecular packing. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:383 / 388
页数:6
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