已为您找到该学者20条结果 成果回收站
施宪法, LI WANG, HONGHAI LI, ZHONGLIANG JIANG, JINYING GU and XIANFA SHI∗
,-0001,():
-1年11月30日
Several new nitrogen-containing calixarene derivatives have been synthesized and their ion-binding properties investigated by UV spectroscopy and solvent extraction. These derivatives include 5,11,17,23-tetra-t-butyl-25,26,27,28-tetrakis (piperidinocarbonylmethoxy) calix [4] arene (5), 5,11,17,23,29,35,41,47-octa-t-butyl-49,50,51,52,53,54,55,56-octa (piperidinocarbonylmethoxy) calix[8]arene (6) and 5,11,17,23,29,35,41,47-octa-t-butyl-49,50,51,52,53,54,55,56-octa(N,N-diethylcarbamoylmethoxy) calix[8]arene (7). The UV spectra of 6 and 7 revealed they had an ability to transform tight lead picrate ion pairs into separated ones by complexation with Pb2+ in tetrahydrofuran. Both derivatives give 1: 1 complexes with Pb2+. Extraction studies showed that these derivatives could efficiently extract Pb2+ (as picrate salts) from the aqueous phase into chloroform. The extractability of these derivatives were also compared with that of the oxygen-containing ester derivative calix [8] arene 2 and the other two nitrogen-containing compounds 8 and 9.
calixarene derivatives,, nitrogen-containing,, lead ions,, ion-binding property,, extraction
-
69浏览
-
0点赞
-
0收藏
-
0分享
-
545下载
-
0
-
引用
【期刊论文】INTERACTION OF METAL IONS WITH TWO NEW CALIX [4,8] ARENE DERIVATIVES
施宪法, ZHIFENG YE a, WEIJIANG HE a, XIANFA SHI b, and LONGGEN ZHU a, *
J. Coord. Chem., 2001, Vol. 54, pp. 105-116,-0001,():
-1年11月30日
Two new calixarene derivative: 5,11,17,23-tetra-t-butyl-25,26,27,2g-tetrakisa (pipclSdinocarbo-nylmetbyoxy) calix [4] arene (L4) and 5,11,17,23,29,35,41,47-octa-t-butyl-49,50,51,52,53,54,55, 56-octa-(piperidinocarbonylmethoxy) calix [8] arene (L8), which show good binding abilities to metal iota, wen synthesized by the reason of the corespondiog calixarene derivatives with piperidine. The ligand L4 is capable of separating a tight ion-pair foxed by Pb2+ and the picrate anion in THF. The interaction of the new hgands L
Calixarene derivatives, Metal iots, Complexes, EIectrospray mass spectrometry
-
31浏览
-
0点赞
-
0收藏
-
0分享
-
94下载
-
0
-
引用
【期刊论文】Synthesis and Properties of New Thiacalixarene Derivatives with Palladium Ion
施宪法, ZHI-FENG YE, ZHI-GANG PAN, WEI-JIANG HE, XIAN-FA SHI, and LONG-GEN ZHU, ∗
,-0001,():
-1年11月30日
Three new thiacalix [4] arene derivatives, 5,11,17,23-tetra-tert-butyl-25,27-di (2-hydroxyethoxy)-26,28-dihydroxythiacalix-[4] arene (2), 5,11,17,23-tetra-tert-25, 26,27,28-tetrakis [(methylcarboxyl)methoxy] thiacalix [4] arene (3), 5,11,17,23-tetratert-butyl-25,26,27,28-tetrakis(2-hydroxy-1-propanoxy)thiacalix [4] arene (4), were synthesized for the first time. The coordination properties of thiacalix [4] arene (1) and its derivatives (2and4) were investigated by detecting the interactions between these compounds and two palladium complexes, cis-[Pd(en)(H2O)2]2+ and cis-[Pd(dtco-3-OH)(H2O)2]2+, by means of electrospray ionization mass spectrometry (ESI-MS) technique.
-
71浏览
-
0点赞
-
0收藏
-
0分享
-
214下载
-
0
-
引用
施宪法, Zhifeng Ye a, Shufeng Pang a, Weijiang He a, Xianfa Shi b, *, Zijian Guo a, Longgen Zhu a
Spectrochimica Acta Part A 57(2001)1443-1447,-0001,():
-1年11月30日
The monolayer properties of p-tert-butylthiacalix[4]arene (TCA) at the air-water interface was investigated by the measurements of surface pressure-area isotherms. However, TCA only exists as a trimmer aggregate on the subphase of deionized water. Copper (II) ion in the subphase can induce the monolayer formation of TCA. The UV-Vis spectra and FTIR spectra of the transferred films suggested that the monolayer formation was fulfilled through the coordination of copper (II) ion to TCA at the air-water surface.
p-tert-Butylthiacalix [4] arene, Monolayer film, Langmuir-Blodgett film
-
79浏览
-
0点赞
-
0收藏
-
0分享
-
159下载
-
0
-
引用
施宪法, Wang Li, Sun Hongbao, Fu Haiying, Jiang Zhongliang, Shi Xianfa
,-0001,():
-1年11月30日
The transport of Fe3+ ions with p-tert-butyl calix[n]arenes and their derivatives as carriers was studied by means of a bubbling pseudo-emulsion liquid membrane. The factors affecting the transport and the selective transport for Fe3+ ions from a mixture of Fe3+ and Cu2+ ions were investigated. It has been discovered that the gradient of the acidity between the source phase and the receiving phase is the driving force for the transport. Additionally, the transports using a series of calixarenes and their derivatives as carriers were studied and compared with each other. A preliminary discussion for the transport mechanism was also given in this paper.
calixarenes, pseudo-emulsion liquid membrane, Fe3+, ions, transport
-
0浏览
-
0点赞
-
0收藏
-
0分享
-
199下载
-
0
-
引用