
TY  - JOUR
A1  - Duckworth, PA 
A1  - Lindoy, LF 
A1  - Mcpartlin, M 
A1  - Tasker, PA 
T1  - New Macrocyclic Ligands. IV. Dibenzo-Substituted Rings Incorporating Five Donor Atoms. X-Ray Structures of an N<sub>4</sub>O-Donor Macrocycle, Its Protonated Form, and Its Complex With Barium Perchlorate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1993
VL  - 46
IS  - 11
SP  - 1787
EP  - 1797
KW  - 
UR  - https://doi.org/10.1071/CH9931787 
N2  - The syntheses and characterization of four dibenzo-substituted macrocycles incorporating N5-, N4O-or N4S-donor sets are reported. The new systems extend the range of related (potentially pentadentate ) macrocyclic systems of this general structure reported previously. For the 17-membered macrocycle incorporating an N4O-donor set, X-ray structure determinations of the free ligand and its salt of type [LH]ClO4 confirm the structure of this compound predicted from physical measurements. The diperchloratobarium complex of this macrocycle is shown to have the barium nine-coordinate; the coordination sphere is composed of the N4O-donors of the macrocycle and four oxygen atoms derived from a monodentate as well as a bidentate perchlorate group and an ethanol molecule. 
ER  -

