12-, 15-, and 18-Membered-ring nitrogen-pivot lariat ethers: syntheses, properties, and sodium and ammonium cation binding properties
作者:Rose Ann Schultz、Banita D. White、Dennis M. Dishong、Kristin A. Arnold、George W. Gokel
DOI:10.1021/ja00309a039
日期:1985.11
Preparation de pres de 50 etherslariat par cyclisation d'une amine ou d'un diol convenablement substitue. Formation de complexes avec lesions Na et NH 4
制备 de pres de 50 ethers lariat par cyclisation d'une amine ou d'un diol convenablement substitue。形成复合物 avec 病变 Na et NH 4
C-Donor lariat ether ‘scorpionates’
作者:Pious Arya、Asif Channa、Peter J. Cragg、Paul D. Prince、Jonathan W. Steed
DOI:10.1039/b108522k
日期:2002.4.2
Structural studies on a range of Ag+ and Pb2+ complexes of N-allyl and N-butenyl lariat ethers are reported. In the case of smaller ligands with allyl side arms (L=N-allylaza-15-crown-5 and N-azaallyl-18-crown-6), coordination polymers of type [Ag(L)]+∞ exhibiting Ag+⋯π interactions are observed. Increasing the length of the side arm to N-butenylaza-18-crown-6 gives a monomeric ‘scorpionate’ species
报道了对N-烯丙基和N-丁烯基套索状醚的一系列Ag +和Pb 2+配合物的结构研究。在具有烯丙基侧臂的较小配体的情况下(L = N -allylaza-15-crown-5和N -azaallyl-18-crown-6),[Ag(L)] + ∞类型的配位聚合物显示Ag + ⋯观察到π相互作用。将侧臂的长度增加至N-丁烯氮杂18-冠-6,可得到单体的“蝎形”物质,其中Ag +离子同时与单个配体的大环部分和侧臂结合。NMR滴定结果表明,Ag+ ⋯π相互作用持续存在于溶液中。在Pb 2+配合物的情况下,在任何情况下均未观察到侧臂受累。还报道了新型的质子化复合物(H 3 O)( N -allylaza-18-crown-6)[Cu 2 I 3 ]。
Formation of an organometallic coordination polymer from the reaction of silver(I) with a non-complimentary lariat ether
作者:Paul D. Prince、Jonathan W. Steed、Peter J. Cragg
DOI:10.1039/a900252i
日期:——
The ‘AgI(15-crown-5)’ core moiety is a versatile supramolecular synthon, which is able to satisfy its coordination requirements using a variety of capping ligands; in the presence of the lariat ether N-allylaza-15-crown-5 an infinite organometallic coordination polymer is formed.
The reaction between ethanolamine (4) and tri- or tetraethylene tosylate (5) and (13) gave 9- and 12-membered monoazacrowns with a -CH2CH2OH residue on nitrogen, A-OH and B-OH, together with 18- and 24-membered diazacrown ethers with the same substituent on nitrogen, E-OH and F-OH. If 2-(2-aminoethoxy)ethanol (12) was used in the reaction described above, instead of 4, the final products, G-OH and H-OH, and K-OH and L-OH, have a longer side chain, -CH2CH2OCH2CH2OH, on nitrogen (Route 1). A series of reactions involving bromoethanol (6) and diethanolamine (9) formed, with 5 or 13, 18- and 24-membered monoazacrowns with the shorter substituent as described above, a 15-membered monoazacrown ether C-OH and an 18-membered D-OH. If 2-(2-chloroethoxy)ethanol (14) is used instead of 6, I-OH and J-OH are obtained (Route 2'). All these hydroxy azacrown ethers were made to react with 3-trimethylgermylpropionic acid (18) to give the corresponding germanium-containing A-L. A preliminary investigation was carried out on the cation transport capability of these germanium-containing azacrown ethers to observe whether germanium might enhance their cation transporting capability. (C) 2001 Published by Elsevier Science B.V.
KUO P.; MIKI M.; IKEDA I.; OKAHARA M., TETRAHEDRON LETT., 1978, NO 44, 4273-4276