［Sn（ethylmaltol）₂I₂］配合物的合成和晶体结构

Synthesis and Crystal Structure of Sn(ethylmaltol )_2I_2 Complex

由ＳｎＩ４和３－羟基－２－乙基－４（Ｈ）－吡喃酮（ｅｔｈｙｌｍａｌｔｏｌ）合成Ｓｎ（Ｌ）２Ｉ２型配合物，并进行了元素分析、ＵＶ、ＩＲ和ＭＳ表征．Ｘ射线单晶结构分析表明，该晶体属单斜晶系，空间群Ｐ２１／ｎ，ａ＝０．７６５８（１）ｕｍ，ｂ＝２．５３６４（４）ｕｍ，ｃ＝１．１５００（２）ｕｍ，β＝９５．１７°，Ｚ＝４，Ｖ＝２．２２４６（６）ｕｍ３，Ｄｃ＝２．０６６ｍｇ／ｍ３．收集到独立衍射点５０８８个，其中３９１３个为可观测点，最终一致化因子Ｒ＝０．０４４８．结构分析表明Ｓｎ处于两个３－羟基－２－乙基－４（Ｈ）－吡喃酮的４个氧原子和２个碘原子的畸变的八面体配位构型中．

Sn(ethylmaltol)2I2 complex has been prepared using SnI4 and 3-hydroxy-2-ethyl4 (H)-pyrone (ethylmaltol) and characterized by elementary analysis, UV, IR and MS. The crystalstructure of the complex was determined by X-ray diffraction. The crystal is monoclinic withspace group P21/n, a=0. 7658 (1), b=2. 5364 (4), c=1. 1500 (2) urn, β=95. 17°,V= 2. 2246(6) nm3,Dc=2. 066 mg/m3. 5088 points of independent diffraction were collected,inwhich 3913 were observed. The final R=0. 0448 and Rw=0. 0916. The tin atom is situatedamong the 4 oxygen atoms of his-ethylmaltolate and 2 iodium atoms to form a slightly distortedoctahedral coordination.