Construction of Larger Molecular Aluminophosphate Cages from the Cyclic Four-Ring Building Unit

2014 ◽  
Vol 53 (7) ◽  
pp. 3753-3762 ◽  
Author(s):  
Jan Chyba ◽  
Zdenek Moravec ◽  
Marek Necas ◽  
Sanjay Mathur ◽  
Jiri Pinkas
Keyword(s):  
2020 ◽  
Author(s):  
Frederik Haase ◽  
Gavin Craig ◽  
Mickaele Bonneau ◽  
kunihisa sugimoto ◽  
Shuhei Furukawa

Reticular framework materials thrive on designability, but unexpected reaction outcomes are crucial in exploring new structures and functionalities. By combining “incompatible” building blocks, we employed geometric frustration in reticular materials leading to emergent structural features. The combination of a pseudo C<sub>5</sub> symmetrical organic building unit based on a pyrrole core, with a C<sub>4</sub> symmetrical copper paddlewheel synthon led to three distinct frameworks by tuning the synthetic conditions. The frameworks show structural features typical for geometric frustration: self-limiting assembly, internally stressed equilibrium structures and topological defects in the equilibrium structure, which manifested in the formation of a hydrogen bonded framework, distorted and broken secondary building units and dangling functional groups, respectively. The influence of geometric frustration on the CO<sub>2</sub> sorption behavior and the discovery of a new secondary building unit shows geometric frustration can serve as a strategy to obtain highly complex porous frameworks.


2020 ◽  
Author(s):  
Frederik Haase ◽  
Gavin Craig ◽  
Mickaele Bonneau ◽  
kunihisa sugimoto ◽  
Shuhei Furukawa

Reticular framework materials thrive on designability, but unexpected reaction outcomes are crucial in exploring new structures and functionalities. By combining “incompatible” building blocks, we employed geometric frustration in reticular materials leading to emergent structural features. The combination of a pseudo C<sub>5</sub> symmetrical organic building unit based on a pyrrole core, with a C<sub>4</sub> symmetrical copper paddlewheel synthon led to three distinct frameworks by tuning the synthetic conditions. The frameworks show structural features typical for geometric frustration: self-limiting assembly, internally stressed equilibrium structures and topological defects in the equilibrium structure, which manifested in the formation of a hydrogen bonded framework, distorted and broken secondary building units and dangling functional groups, respectively. The influence of geometric frustration on the CO<sub>2</sub> sorption behavior and the discovery of a new secondary building unit shows geometric frustration can serve as a strategy to obtain highly complex porous frameworks.


2021 ◽  
Vol 36 ◽  
pp. 102120
Author(s):  
Siddhesh Godbole ◽  
Nelson Lam ◽  
M.M.M. Mafas ◽  
Emad Gad

2006 ◽  
Vol 45 (19) ◽  
pp. 7566-7568 ◽  
Author(s):  
Daofeng Sun ◽  
Yanxiong Ke ◽  
Tracy M. Mattox ◽  
Sean Parkin ◽  
Hong-Cai Zhou

ChemInform ◽  
2006 ◽  
Vol 37 (51) ◽  
Author(s):  
Ragnar Kiebach ◽  
Christian Naether ◽  
C. Peter Sebastian ◽  
Bernd D. Mosel ◽  
Rainer Poettgen ◽  
...  

2010 ◽  
Vol 46 (12) ◽  
pp. 2049 ◽  
Author(s):  
M. Jaya Prakash ◽  
Minhak Oh ◽  
Xinfang Liu ◽  
Kwi Nam Han ◽  
Gi Hun Seong ◽  
...  

1959 ◽  
Vol 25 (1) ◽  
pp. 117-119 ◽  
Author(s):  
Edwin R. Littmann

AbstractChemical and microscopic examination of the material from successive floors of Mound A, Las Flores, Tampico, indicates that each building unit consisted of a lime-aggregate forming a monolithic mass, with subsequent plastering, essentially as at Comalcalco, Tabasco.


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