TY - JOUR
T1 - Mapping out the diversity of lanthanide(III) coordination complexes involving p-sulfonatocalix[4,6]arenes
AU - Ling, Irene
AU - Makha, Mohamed
AU - Sobolev, Alexandre N.
AU - Alias, Yatimah
AU - Raston, Colin L.
PY - 2020/3/19
Y1 - 2020/3/19
N2 - Structurally authenticated complexes of the cone-shaped p-sulfonatocalix[4]arene and conformationally flexible p-sulfonatocalix[6]arene devoid of co-ligands/ancillary molecules are limited. Early and late members of the lanthanide series as their trivalent ions, La3+, Er3+, and Yb3+, form complexes from aqueous media under these conditions. For La3+ and Er3+, distinct hydrophobic and hydrophilic bilayers are formed with p-sulfonatocalix[4]arene, whereas for Yb3+, two complexes form that deviate from the well-known bilayer arrangement of calixarenes. Replacing the calixarene with p-sulfonatocalix[6]arene results in a hydrogen-bonded network with alternating hydrophobic-hydrophilic layers associated with primary coordination of Yb3+, with the larger macrocyclic calixarene in a partial cone conformation.
AB - Structurally authenticated complexes of the cone-shaped p-sulfonatocalix[4]arene and conformationally flexible p-sulfonatocalix[6]arene devoid of co-ligands/ancillary molecules are limited. Early and late members of the lanthanide series as their trivalent ions, La3+, Er3+, and Yb3+, form complexes from aqueous media under these conditions. For La3+ and Er3+, distinct hydrophobic and hydrophilic bilayers are formed with p-sulfonatocalix[4]arene, whereas for Yb3+, two complexes form that deviate from the well-known bilayer arrangement of calixarenes. Replacing the calixarene with p-sulfonatocalix[6]arene results in a hydrogen-bonded network with alternating hydrophobic-hydrophilic layers associated with primary coordination of Yb3+, with the larger macrocyclic calixarene in a partial cone conformation.
UR - http://www.scopus.com/inward/record.url?scp=85082630262&partnerID=8YFLogxK
U2 - 10.1071/CH19640
DO - 10.1071/CH19640
M3 - Article
AN - SCOPUS:85082630262
SN - 0004-9425
VL - 73
SP - 570
EP - 578
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
IS - 6
ER -