Intermediates for x-rays

The former compound displays a remarkable three-dimensional architecture sustained by the catenation of 2D bilayers, while the latter exhibits a unique twofold interpenetrating three-dimensional architecture. The thermal and fluorescence properties associated with their crystal structures have been measured.

Two novel cadmium(II) coordination compounds, [Cd(bpe)_1.5(NO₂-BDC)]·0.25H₂O (1) and [Cd(bpp)(NO₂-BDC)(H₂O)]·0.25H₂O (2) [NO₂-BDCH₂ = 5-nitro-1,3-benzenedicarboxylic acid, bpe = 1,2-bis(4-pyridyl)ethane, bpp = 1,3-bis(4-pyridyl)propane] have been hydrothermally synthesized by reaction of cadmium chloride and NO₂-BDC with the homologous ligands bpe and bpp, respectively.

A unique noninterpenetrated 2D bilayer cobalt(II)-organic framework, [{Co(dpe)(NO₂-BDC)}·0.5(dpe)]_n·nH₂O (1), possessing nanoscale rectangular channels that clathrate large organic molecules, has been hydrothermally synthesized by reaction of cobalt(II) salt with 5-nitro-1,3-benzenedicarboxylic acid (NO₂-H₂BDC) and 1,2-bis(4-pyridyl)ethylene