Structures of aza-macrocyclic ligands with polyphosphonated dangling groups

被引：5
|
作者：
Kong, Deyuan [1 ]
Mcbee, Jennifer [2 ]
Holliness, LeAnthony [3 ]
Clearfield, Abraham [3 ]
机构：
[1] Chevron Tech Com, Energy Tech 35 1204, Richmond, CA 94801 USA
[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[3] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
来源：
TETRAHEDRON LETTERS | 2008年 / 49卷 / 21期
关键词：
D O I：
10.1016/j.tetlet.2008.03.085
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Two phosphonated hexaaza-macrocycles with 24- and 26-membered rings have been synthesized via a Mannich reaction and characterized. The novel crystal structures of the macrocyclic ligands show the extended 3-D hydrogen bonded structure in their solid states. These ligands have unusual ring conformations with two or four pendent arms wrapping around the macrocycle with alternating up and down orders. Strong hydrogen bonding between the protonated phosphonate groups and the deprotonated phosphonated groups was observed in those structures together with the complicated solvent hydrogen bonding networks. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3512 / 3515
页数：4
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