T. Akitsu et al., A novel five-coordinated sodium ion captured in Na-2[Ni(succim)(4)]center dot 2H(2)O (succim = succinimidate) complex: Crystal structure and crystal polarized electronic spectra., B CHEM S J, 74(3), 2001, pp. 507-508
The crystal structure of Na-2[Ni(succim)(4)]. 2H(2)O complex having four mo
nodentate succinimidate (succim) ligands was determined by X-ray structural
analysis. The host complex captures five-coordinated guest sodium ion, whi
ch is the first example of a podand complex formed in a crystal. Polarized
crystal electronic spectra of the complex were measured with parallel and p
erpendicular to b axis polarization.