Guest-induced Assembly of Bis(thiosemicarbazonato) Zinc(II) Coordination Nanotubes.
A ZnIIcomplex of the dianionic tetradentate ligand formed by deprotonation of glyoxal-bis(4-phenyl-3-thiosemicarbazone) (H2gtsp) is a [3+3] trinuclear triangular prism. Recrystallization of this complex in the presence of either CO2, CS2, or CH3CN leads to the formation of [4+4] open-ended charge-neutral tetranuclear coordination nanotubes, approximately 2 nm in length and with internal dimensions large enough to accommodate linear guest molecules, which serve to template their formation. Upon removal of the templating molecules the nanotubes demonstrated reversible sorption of CO2with an isosteric enthalpy of sorption of 28 kJ mol-1at low loading.
School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Vic, Australia.
Brett M
0000-0002-7768-811X
BM
Paterson
School of Chemistry, The University of Melbourne, Melbourne, Vic, Australia.
Keith F
KF
White
School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Vic, Australia.
Jonathan M
0000-0002-0707-6257
JM
White
School of Chemistry, The University of Melbourne, Melbourne, Vic, Australia.
Brendan F
BF
Abrahams
School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Vic, Australia.
Paul S
0000-0001-5373-0080
PS
Donnelly
coordination nanotubes; guest-induced assembly; thiosemicarbazones; zinc