| Bond Valence Sum Analysis of Tl（Ⅰ） and Tl（Ⅲ） Complexes with O and N Donors |
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| 作者姓名： | Gus J. Palenik HU Sheng-Zhi |
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| 作者单位： | [1]Chemistry Department, The University of Florida, PO Box 117200, Gainesville, Florida 32611-7200 USA [2]Department of Chemistry, Institute of Physical Chemistry, Xiamen University, Xiamen 361005, China |
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| 摘 要： | The influence of the lone pair of electrons in thallium complexes is analyzed using the bond valence sum method.Bond length data for metal-organic Tl complexes were obtained from the Cambridge Structural Database(CSD),and problems with searching the CSD file for Tl complexes are discussed.The recommended R0 values for Tl(Ⅰ)-O of 2.162 ,Tl(Ⅲ)-O of 2.016 ,Tl(Ⅰ)-N of 2.286 ?,and for Tl(Ⅲ)-N of 2.014 used with b = 0.37 were derived from analyses of homoleptic Tl-O,Tl-N,and heteroleptic Tl-O and-N metal organic complexes.These R0 values can be used to assign correctly the oxidation state of Tl in complexes containing any combination of Tl-O or Tl-N bonds.Examples of questionable oxidation states for Tl complexes are given.The R0 value for Tl(Ⅲ)-Cl of 2.300 was also determined.
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| 关 键 词： | 金属有机配合物 铊 金属有机络合物 债券 孤对电子 结构数据库 氧化态 键价和 |
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