Structures of aza-macrocyclic ligands with polyphosphonated dangling groups Academic Article

abstract

• 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. 2008 Elsevier Ltd. All rights reserved.

authors

• Clearfield, Abraham

published proceedings

• TETRAHEDRON LETTERS

author list (cited authors)

• Kong, D., Mcbee, J., Holliness, L., & Clearfield, A.

citation count

• 5

complete list of authors

• Kong, Deyuan||Mcbee, Jennifer||Holliness, LeAnthony||Clearfield, Abraham

publication date

• May 2008

publisher

• Elsevier  Publisher

published in

• Tetrahedron Letters: the international journal for the rapid publication of all preliminary communications in organic chemistry  Journal

Digital Object Identifier (DOI)

• 10.1016/j.tetlet.2008.03.085

start page

• 3512

end page

• 3515

volume

• 49

issue

• 21

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.tetlet.2008.03.085