Zinc(II)-pyridylthioazophenol system: synthesis, characterization and crystal structure

被引：7
作者：
Dhara, Pulak K.
Drew, Michael G. B.
Chattopadhyay, Pabitra [1 ]
机构：
[1] Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India
[2] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England
来源：
JOURNAL OF COORDINATION CHEMISTRY | 2007年 / 60卷 / 06期
基金：
英国工程与自然科学研究理事会;
关键词：
zinc(II); pyridylthioazophenols; pyridylsulfinylazophenols; crystal structure;
D O I：
10.1080/00958970600853382
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Reactivities of pyridylthioazophenols (1) with zinc(II) salts have been studied and the complexes isolated in pure form and characterized. Pyridylthioazophenols react with zinc( II)acetate in MeOH/EtOH at room temperature to give a series of pyridylsulfinylazophenols (2)but no zinc( II) complex. The sulfoxides (2) have been characterized by IR and NMR. One of the pyridylsulfinylazophenols (2a) has been subjected to single-crystal X-ray analysis in order to confirm details of its structure. A series of dimeric zinc( II) complexes of tetradentate NSNO pyridylthioazophenolates has been isolated through reaction of zinc nitrate in MeOH followed by in situ reaction with azide ion, which acts as a mu-(1,1) bridge. All complexes have been characterized spectroscopically. The detailed structure of one of the dinuclear zinc( II) complexes has been established by a single-crystal X-ray structure determination. In complex 3a two octahedrally coordinated zinc( II) ions are bridged by two end-on azide ions. No reactions of pyridylthioazophenols with zinc chloride in refluxing EtOH have been observed.
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收藏
页码：627 / 634
页数：8
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