A magnetic self-contained thermochromic system with convenient temperature range
作者:Floriana Billeci、H. Q. Nimal Gunaratne、Francesca D'Anna、Grace G. Morgan、Kenneth R. Seddon、Natalia V. Plechkova
DOI:10.1039/c8gc03906b
日期:——
new ionicliquid with sugar-based ligand has been prepared and used to coordinate cobalt(II), at low loading, in an ionicliquid solution. The system obtained reveals magnetic switching and marked thermochromism in solution/polymer films over a convenienttemperature range (20–60 °C). This system is self-contained, devoid of any volatile substances, and reproducible over multiple thermal cycles. The
已经制备了具有糖基配体的新型离子液体,并用于在离子液体溶液中以低负荷配位钴(II)。所获得的系统显示出在便利的温度范围(20–60°C)下溶液/聚合物膜中的磁性开关和明显的热致变色现象。该系统是独立的,没有任何挥发性物质,并且可以在多个热循环中重现。颜色变化可归因于配位几何形状的变化,从室温下的八面体(粉红色)到变暖时的四面体(蓝色),由59 Co NMR光谱监测,这是首次用于研究这种变化。该材料可以在针对能量存储应用的刺激响应智能系统中找到应用。
Synthesis and evaluation of d-gluconamides as green mineral scales
作者:Marcelo I.P. Reis、Aline D. Gonçalves、Fernando de C. da Silva、Alessandro K. Jordão、Ricardo J. Alves、Saulo Fernandes de Andrade、Jackson A.L.C. Resende、Anderson A. Rocha、Vitor F. Ferreira
DOI:10.1016/j.carres.2012.01.027
日期:2012.5
A series of 13 D-gluconamides were synthesized in moderate to good yields and evaluated as green scale inhibitors. The crystal structures of two compounds were determined by X-ray crystallography. The compounds 6c and 6d showed a reasonable inhibition of BaSO4 precipitation from aqueous solution (47% and 51%, respectively) that indicated the potential for these derivatives of delta-gluconolactone. (C) 2012 Elsevier Ltd. All rights reserved.