首页 | 本学科首页   官方微博 | 高级检索  
     


Ketimine synthesis in the coordination sphere of thallium (I)
Authors:Eduardo J. Ferná  ndez,Tania Lasanta,Manuel Montiel
Affiliation:a Departamento de Química, Universidad de la Rioja, Grupo de Síntesis Química de La Rioja, UA-CSIC, Complejo Científico Tecnológico, 26006 Logroño, Spain
b Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
Abstract:[AuTl(C6F5)2(en)] (en = ethylenediamine) reacts with cyclic ketones as cyclopentanone (Cy5double bond; length as m-dashO), cyclohexanone (Cy6double bond; length as m-dashO) or cycloheptanone (Cy7double bond; length as m-dashO) in 1:1 or 1:2 molar ratio leading to products of stoichiometry [AuTl(C6F5)2{Cyxdouble bond; length as m-dashN(CH2)2NH2}] (x = 5 1, 6 2 or 7 3), or [AuTl(C6F5)2{Cyxdouble bond; length as m-dashN(CH2)2Ndouble bond; length as m-dashCyx}] (x = 5 4, 6 5 or 7 6). Addition of ethylenediamine to the ketimine complexes in chloroform regenerates [AuTl(C6F5)2(en)], the starting material, and the free ketimines, as their NMR and mass spectra evidenced. The ketimine complexes display luminescence in solid state at room temperature and at 77 K at higher wavelengths than the diamine starting product (505 nm). The excited states responsible for this behaviour are assigned to orbitals due to the gold-thallium interactions.
Keywords:Gold   Thallium   Ketimine   Luminescence   Metal-metal interactions
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号