Geometric Frustration in Molecular Crystals

2020 ◽  
Vol 60 (12) ◽  
pp. 1185-1189
Author(s):  
Efi Efrati
Keyword(s):  
Molecular Crystals ◽  
Geometric Frustration

Twist renormalization in molecular crystals driven by geometric frustration

Soft Matter ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 116-126 ◽  
Author(s):  
Asaf Haddad ◽  
Hillel Aharoni ◽  
Eran Sharon ◽  
Alexander G. Shtukenberg ◽  
Bart Kahr ◽  
...  
Keyword(s):  
Molecular Crystals ◽  
Length Scales ◽  
Size Dependent ◽  
Geometric Frustration

Geometric frustration provides a path for conveying twist across length scales and for producing size dependent twist in macroscopic assemblies, thus shining a light on the formation of twisted molecular crystals.

THEORY OF THERMAL CONDUCTIVITY IN MOLECULAR CRYSTALS, APPLICATION TO ALCALI CYANIDES

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-247-C6-249 ◽  
Author(s):  
W. Bauernfeind ◽  
J. Keller ◽  
U. Schröder
Keyword(s):  
Thermal Conductivity ◽  
Molecular Crystals

COHERENT EXCITATION AND EVOLUTION OF TWO-PHONON STATES IN MOLECULAR CRYSTALS

1985 ◽  
Vol 46 (C7) ◽  
pp. C7-281-C7-286
Author(s):  
F. Vallée ◽  
G. Gale ◽  
C. Flytzanis
Keyword(s):  
Molecular Crystals ◽  
Coherent Excitation

Adiabatic large polarons in anisotropic molecular crystals

2011 ◽  
Vol 35 (1) ◽  
pp. 15-27
Author(s):  
Zoran Ivić ◽  
Željko Pržulj
Keyword(s):  
Energy Transfer ◽  
Effective Mass ◽  
Molecular Crystals ◽  
Single Chain ◽  
Proper Understanding ◽  
One Dimensional ◽  
Interchain Coupling ◽  
Large Polaron ◽  
The One

Adiabatic large polarons in anisotropic molecular crystals We study the large polaron whose motion is confined to a single chain in a system composed of the collection of parallel molecular chains embedded in threedimensional lattice. It is found that the interchain coupling has a significant impact on the large polaron characteristics. In particular, its radius is quite larger while its effective mass is considerably lighter than that estimated within the one-dimensional models. We believe that our findings should be taken into account for the proper understanding of the possible role of large polarons in the charge and energy transfer in quasi-one-dimensional substances.

A Pseudo Five-Fold Symmetrical Ligand Drives Geometric Frustration in Porous Metal-Organic and Hydrogen Bonded Frameworks

2020 ◽  
Author(s):  
Frederik Haase ◽  
Gavin Craig ◽  
Mickaele Bonneau ◽  
kunihisa sugimoto ◽  
Shuhei Furukawa
Keyword(s):  
Topological Defects ◽  
Porous Metal ◽  
Building Blocks ◽  
Structural Features ◽  
Equilibrium Structure ◽  
Sorption Behavior ◽  
Building Unit ◽  
Geometric Frustration ◽  
Secondary Building Units ◽  
Hydrogen Bonded

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.

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