Herein we report two tubular metal−organic cages (MOCs), synthesized by the self-assembly of bidentate metalloligands with different lengths and Pd II . These two MOCs feature Pd 4 L 8 -type square tubular and Pd 3 L 6 -type triangular cage structures, respectively. Both MOCs have been fully characterized by NMR spectroscopy, mass spectrometry, and theoretical calculation. Both cages can be employed for encapsulating polycyclic aromatic hydrocarbons and show high binding affinity toward coronene.
Herein we report a discrete heterometallic
Pd4Cu8L8 cage with a tubular structure,
which was synthesized
by the assembly of copper metalloligands and PdII ions
in a stepwise manner. The Pd4Cu8L8 cage has been unequivocally characterized by single-crystal X-ray
diffraction, electrospray ionization-mass spectroscopy, and energy
dispersive spectroscopy. The cage showed excellent catalytic activity
in the epoxidation of styrene and its derivatives under conditions
without using additional solvent, providing potential material for
catalyzing the oxidation reactions.
Developing effective catalysts to degrade chemical warfare agents is of great significance. Herein, a mesoporous MIL‐101(Cr) composite material dangled with porphyrin molecules (denote as TCPP@MIL‐101(Cr), TCPP = tetra(4‐carboxyphenyl)porphyrin) is reported, which can be used as a heterogeneous photocatalyst for detoxification of mustard gas simulants 2‐chloroethyl ethyl sulfide (CEES) to 2‐chloroethyl ethyl sulfoxide (CEESO) with a half‐life of 1 min. The catalytic performance of TCPP@MIL‐101(Cr) is comparable to that of homogeneous molecular porphyrin. Mechanistic studies reveal that both 1O2 and O2•− are efficiently generated and play vital roles in the oxidation reaction. Gold nanoparticles (AuNPs) are attached to the TCPP@MIL‐101(Cr) to further enhance the catalytic activity with a benchmark half‐life of 45 s, which is the fastest record so far. A medical mask loaded TCPP@MIL‐101(Cr) is fabricated for practical applications, which can selectively photoxidize CEES to CEESO under sunlight and air atmosphere, exhibiting the best degradation performance among the reported fabric‐like composite materials.
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