期刊论文详细信息
  1. 返回上一页
Sensors
Vapochromic Behaviour of M[Au(CN)2]2-Based Coordination Polymers (M = Co, Ni)
Julie Lefebvre1  Jasmine L. Korčok1  Michael J. Katz1 
[1] Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada;
关键词: vapochromism;    cyanide;    X-ray structures;    cobalt(II);    nickel(II);   
DOI  :  10.3390/s120303669
来源: mdpi
PDF
【 摘 要 】

A series of M[Au(CN)2]2(analyte)x coordination polymers (M = Co, Ni; analyte = dimethylsulfoxide (DMSO), N,N-dimethylformamide (DMF), pyridine; x = 2 or 4) was prepared and characterized. Addition of analyte vapours to solid M(μ-OH2)[Au(CN)2]2 yielded visible vapochromic responses for M = Co but not M = Ni; the IR νCN spectral region changed in every case. A single crystal structure of Zn[Au(CN)2]2(DMSO)2 revealed a corrugated 2-D layer structure with cis-DMSO units. Reacting a Ni(II) salt and K[Au(CN)2] in DMSO yielded the isostructural Ni[Au(CN)2]2(DMSO)2 product. Co[Au(CN)2]2(DMSO)2 and M[Au(CN)2]2(DMF)2 (M = Co, Ni) complexes have flat 2-D square-grid layer structures with trans-bound DMSO or DMF units; they are formed via vapour absorption by solid M(μ-OH2)[Au(CN)2]2 and from DMSO or DMF solution synthesis. Co[Au(CN)2]2(pyridine)4 is generated via vapour absorption by Co(μ-OH2)[Au(CN)2]2; the analogous Ni complex is synthesized by immersion of Ni(μ-OH2)[Au(CN)2]2 in 4% aqueous pyridine. Similar immersion of Co(μ-OH2)[Au(CN)2]2 yielded Co[Au(CN)2]2(pyridine)2, which has a flat 2-D square-grid structure with trans-pyridine units. Absorption of pyridine vapour by solid Ni(μ-OH2)[Au(CN)2]2 was incomplete, generating a mixture of pyridine-bound complexes. Analyte-free Co[Au(CN)2]2 was prepared by dehydration of Co(μ-OH2)[Au(CN)2]2 at 145 °C; it has a 3-D diamondoid-type structure and absorbs DMSO, DMF and pyridine to give the same materials as by vapour absorption from the hydrate.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland

【 预 览 】
附件列表
Files Size Format View
RO202003190045078ZK.pdf 1355KB PDF download
  文献评价指标  
  下载次数：14次 浏览次数：26次
   
推荐资源列表
关于我们|团队介绍|帮助中心|联系我们

Copyright © 2016 中国科学院文献情报中心

京公网安备340104078870146号  878987797  028-85220240

OAinOne平台基于对开放资源的发现、遴选和评价方式，发现、获取、集成9类优质的开放科技资源，包括开放期刊、开放会议论文、开放课件、科技政策、开放学位论文、开放图书、开放科技报告、科研项目、开放科学数据。同时，为实现开放知识资源普遍服务、个性化服务、精准服务，基于OAinONE集成的丰富开放资源，开发建设领域开放知识资源服务定制工具(OAtoYOU)、开放资源评价评估体系（OAEvaluation），建设集成OAinONE资源及其他第三方资源的OA Hub，及其面向我院分布式大数据知识资源系统及其他第三方的开放接口服务，并打造特色专题数据库产品建设，包括科技政策集成及趋势平台、开放课程大讲堂等。此外，OAinOne构建开放知识资源建设的可持续发展机制，支持我院研究所特色馆藏资源、自建资源、古籍资源等在OAinONE平台上的集成、开放、共享。