Handcuff-like metallo-pseudorotaxanes consisting of tiara[5]arene wheels and dimeric silver trifluoroacetate axles

Abstract

Co-crystallising per-methylated tiara[5]arene and silver trifluoroacetate results in handcuff-like metallo-bis-pseudorotaxanes on account of endo-cavity and exo-wall AgI η2-arene interactions.

Potential of nonporous adaptive crystals for hydrocarbon separation

“…In addition to the above mentioned PA[n]-based NACs, asymmetric PA[n]-based NACs have also received extensive attention, which are expected to achieve hydrocarbon separation that cannot be achieved by symmetrical PA[n]-based NACs. 143 Yao and co-workers proposed a novel rim-differentiated pillar [5]arene H6 prepared by Lewis acid catalyzed condensation reaction. 144 There are five alkynyl groups on the upper-rim and five ester groups on the lower-rim of H6.…”

Improved catalytic activity on transitioning from inverse to normal spinel in Zn2−xGa2xSn1−xO4: a robust bifunctional OER and HER electrocatalyst

“…Wang et al 13 have recently reported Ir/MoS 2 nanoowers for overall water splitting in acidic media and the catalyst requires overpotentials of 270 and 35 mV for the OER and HER, respectively. Another study was reported by the same group 14 in which they fabricated an Ir based catalyst (Ir/Te nanorods) which has shown superior activity in acidic electrolytes. The high cost and scarcity of noble metal-based catalysts can hinder large-scale application.…”

Enhanced d–π overlap in a graphene supported Ni/PtNi heterojunction for efficient seawater hydrogen evolution

“…Water electrolysis using abundantly available seawater is an ideal method for low-cost and large-scale hydrogen production. [1][2][3] Various electrocatalysts have been developed for efficient hydrogen production as the key component of electrolyzers for water splitting. [4][5][6][7] In the group investigated thus far, Pt-based materials have been found to possess superior H adsorption properties that make them the most efficient catalyst for the cathodic hydrogen evolution reaction (HER).…”