Hydrogen-adsorption Properties of a Novel Lantern-type Dinuclear Co(BDC)(DABCO)1⁄2

Abstract

A three-dimensional (3-D) cobalt coordination polymer Co(BDC)(DABCO)1⁄2 (BDC = 1,4-benzenedicarboxylate; DABCO = 1,4-diazabicyclo[2.2.2]octane), which has a novel lantern-type structure, was synthesized and characterized by X-ray powder diffraction patterns and elemental analysis. In addition, hydrogen-adsorption characteristics were evaluated at 77 K. The highest measured hydrogen uptake was 2.28 wt % at 77 K and 0.1 MPa for Co(BDC)(DABCO)1⁄2.

Pillared-layered metal–organic frameworks for mechanical energy storage applications

“…The layers are connected through 1,4-diazabicyclo[2.2.2]octane (DABCO) pillar ligands via the axial sites of the paddle wheels. This material has been synthesized with various types of metal ions (Fe, 32 Co, 33,34 Ni, 35,36 Cu, 28 Zn 29 ) and mixed-metal variants exist. 37 While theoretical investigations of DMOF-1 are relatively limited, 5,17,21,38,39 the unusual and reversible breathing behavior has been highlighted by several experimental groups.…”

Pillared cobalt metal–organic frameworks act as chromatic polarizers

“…By selecting the tetragonal DMOF architecture, [M 2 (1,4- 29 and Co 2+ , 30,31 among others), where 2D sheets of divalent transition metal carboxylate paddlewheels are stacked via dabco ligands functioning as pillars (Fig. 1), a complete anisotropic alignment of the metal paddlewheels is achieved.…”

Fabrication of Monodisperse Flower-Like Coordination Polymers (CP) Microparticles by Spray Technique

“…The FT-IR spectrum of the microparticles fabricated in DMF was identical to that of the MOF counterpart as shown in Figure 4 c, indicating that the Co 2+ ions have coordinated with the H 2 BDC ligands successfully. However, the XRD pattern of the microparticles ( Figure 4 d) was totally different from that of the MOF counterpart and even did not fit any standard of the known MOF [ 37 ]. The corresponding single crystal could not be obtained, which limited research on its accurate structure.…”