作者:Ulrich Schubert、Jürgen Schubert
DOI:10.1016/0022-328x(92)83304-z
日期:1992.8
K[(π-arene)(CO)2CrSnPh3] (π-areneC6H6, 1,3,5-C6H3Me3, 1,2,4,5-C6H2Me4, C6Me6) were prepared by deprotonation of the corresponding hydrido stannyl complexes (π-arene)CO)2Cr(H)SnPh3 with KH. Cyclovoltammetric investigations showed that the anionic complexes are reversibly oxidized and that the oxidation potential increases from π-arene = benzene (E1/2 = − 0.481 V) to π-arene = C6Me6 (E1/2 = − 0.677 V). The
阴离子甲锡烷基配合物K [(π-芳烃)(CO)2 CrSnPh 3 ](π-areneC 6 ħ 6,1,3,5--C 6 H ^ 3我3,1,2,4,5--C通过用KH使相应的氢化苯乙烯基配合物(π-芳烃)CO)2 Cr(H)SnPh 3脱质子化而制备6 H 2 Me 4,C 6 Me 6)。循环伏安法研究表明,阴离子络合物被可逆氧化,并且氧化电位从π-芳烃=苯(E 1/2 =-0.481 V)增加到π-芳烃= C 6 Me6(E 1/2 = − 0.677 V)。通过与不同的有机锡卤化物反应,研究了π-芳烃配体和卤化物的电子和空间特性对取代和氧化还原反应之比的影响。用Me 3 SnCl或Me 2 SnCl 2,阴离子锡烷基配合物仅产生取代产物(π-芳烃)(CO)2 Cr(SnPh 3)-(SnMe 2 X)(XMe,Cl)。与Ph 3 SnCl或Ph 2 SnCl 2反应时当π-芳