TY - JOUR
T1 - Intermolecular axial solvation of bound cations by sidearm donor groups in lariat ethers
T2 - Formation of a supramolecular network
AU - Montalban, Antonio Garrido
AU - Sakellariou, Efstathia G.
AU - Riguet, Eric
AU - McCubbin, Quentin J.
AU - Barrett, Anthony G.M.
AU - Hoffman, Brian M.
N1 - Funding Information:
We thank the NIH (GM-36262) and the NSF (CHE-9805840) for grants that supported this work.
PY - 2001/5/28
Y1 - 2001/5/28
N2 - Previously studied disubstituted 4,13-diaza-18-crown-6 derivatives, R < N18N > R, in which the substituents were cyanomethyl or propargyl did not show intramolecular, lariat-type cation solvation. The ring-bound cation in the propargyl derivative is solvated by the six macroring heteroatoms and apically by a bifurcated interaction of the type F···K+···F. In contrast, when the sidearm is cyanoethyl, an extended intermolecular network forms when the bound cation is either Na+ or K+.
AB - Previously studied disubstituted 4,13-diaza-18-crown-6 derivatives, R < N18N > R, in which the substituents were cyanomethyl or propargyl did not show intramolecular, lariat-type cation solvation. The ring-bound cation in the propargyl derivative is solvated by the six macroring heteroatoms and apically by a bifurcated interaction of the type F···K+···F. In contrast, when the sidearm is cyanoethyl, an extended intermolecular network forms when the bound cation is either Na+ or K+.
KW - Aza macrocycles
KW - Crown ethers
KW - Supramolecular network
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U2 - 10.1016/S0020-1693(01)00343-7
DO - 10.1016/S0020-1693(01)00343-7
M3 - Article
AN - SCOPUS:0035962905
SN - 0020-1693
VL - 317
SP - 121
EP - 126
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
IS - 1-2
ER -