caa a22 4500 469059176 CHVBK 20180323132852.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF01053867 doi (NATIONALLICENCE)springer-10.1007/BF01053867 Li+(TMPAND)Na−: The first alkalide prepared from an azacage complexant [Elektronische Daten] [Judith Eglin, Evelyn Jackson, Kevin Moeggenborg, James Dye, Andrea Bencini, Mauro Micheloni] The new lithium-selective complexant 5,12,17-trimethyl-1,5,9,12,17-pentaazabicyclo[7.5.5]nonadecane (TMPAND) was used to synthesize Li+(TMPAND)Na−, the first alkalide prepared from an azacage complexant. This sodide was characterized by a variety of methods. Differential scanning calorimetry experiments showed a reversible, endothermic, solid-solid phase transition at an onset temperature of −75 ± 3°C and with ΔH = 3.3 ± 1 kJ/mol.23Na NMR spectra showed a peak at −61 ppm, characteristic of a sodium anion, and a second minor peak at −10 ppm, probably due to the interaction of Na- with trapped electrons. The quadrupole coupling constant of the complexed lithium cation was found to be 0.19 MHz at −100°C, and7Li NMR spectra showed a discontinuity in the line width of the7Li NMR peak and in the quadrupole coupling constant at the phase transition. Kluwer Academic Publishers, 1992 Alkalide nationallicence electride nationallicence azacage nationallicence cryptand nationallicence sodium NMR nationallicence lithium NMR nationallicence Eglin Judith Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut Jackson Evelyn Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut Moeggenborg Kevin Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut Dye James Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut Bencini Andrea Department of Chemistry, University of Florence, via Maragliano 77, 50144, Florence, Italy aut Micheloni Mauro Department of Chemistry, University of Florence, via Maragliano 77, 50144, Florence, Italy aut Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 12/1-4(1992-01-01), 263-274 0923-0750 12:1-4<263 1992 12 10847 https://doi.org/10.1007/BF01053867 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01053867 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eglin Judith Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut NATIONALLICENCE 700 1- Jackson Evelyn Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut NATIONALLICENCE 700 1- Moeggenborg Kevin Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut NATIONALLICENCE 700 1- Dye James Department of Chemistry, Michigan State University, 48824, East Lansing, Michigan, USA aut NATIONALLICENCE 700 1- Bencini Andrea Department of Chemistry, University of Florence, via Maragliano 77, 50144, Florence, Italy aut NATIONALLICENCE 700 1- Micheloni Mauro Department of Chemistry, University of Florence, via Maragliano 77, 50144, Florence, Italy aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 12/1-4(1992-01-01), 263-274 0923-0750 12:1-4<263 1992 12 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer