Chapter 12
Kinetic Assembly of Porous Coordination
Networks Leads to Trapping Unstable
Elemental Allotropes
Hiroyoshi Ohtsu, Pavel M. Usov, and Masaki Kawano
Abstract Kinetic assembly is an important method for obtaining desired materials
in chemical synthesis and material sciences. However, the application of this strategy
to porous coordination networks has been limited. We highlight the kinetic assembly
of porous coordination networks, which promote the production of interactive pore
sites. These sites can activate or stabilize different guest molecules. The properties
of interactive pores are exemplified by iodine chemisorption and small sulfur encapsulation. Using the interactive feature of these pores, we were able to trap small
sulfur allotropes, such as S 2 , cyclo-S 3 , bent-S 3 , and S 6 , demonstrating their importance for the stabilization of unusual elemental species. Furthermore, several reactive
elemental allotropes could also be incorporated into the interactive pores. Herein, we
address the important aspects of creating interactive pore sites by kinetic assembly
of porous coordination networks and present detailed case-by-case studies of small
allotrope encapsulation.
Keywords Porous coordination network · Kinetic assembly · Unstable small
sulfur species · Elemental allotropes
12.1 Introduction
12.1.1 Scope of the Book Chapter
The kinetic assembly method for the coordination network formation is introduced in
this chapter. This method is not common in coordination network chemistry, despite
it having a great capacity to create functional materials. Furthermore, the kinetically
assembled networks enabled us to successfully trap and visualize unstable elemental
allotropes.
H. Ohtsu · P. M. Usov · M. Kawano (B)
Tokyo Institute of Technology, Tokyo, Japan
e-mail: mkawano@chem.titech.ac.jp
© Springer Nature Singapore Pte Ltd. 2020
M. Sakamoto and H. Uekusa (eds.), Advances in Organic Crystal Chemistry,
https://doi.org/10.1007/978-981-15-5085-0_12
221
Kinetic Assembly of Porous Coordination
Networks Leads to Trapping Unstable
Elemental Allotropes
Hiroyoshi Ohtsu, Pavel M. Usov, and Masaki Kawano
Abstract Kinetic assembly is an important method for obtaining desired materials
in chemical synthesis and material sciences. However, the application of this strategy
to porous coordination networks has been limited. We highlight the kinetic assembly
of porous coordination networks, which promote the production of interactive pore
sites. These sites can activate or stabilize different guest molecules. The properties
of interactive pores are exemplified by iodine chemisorption and small sulfur encapsulation. Using the interactive feature of these pores, we were able to trap small
sulfur allotropes, such as S 2 , cyclo-S 3 , bent-S 3 , and S 6 , demonstrating their importance for the stabilization of unusual elemental species. Furthermore, several reactive
elemental allotropes could also be incorporated into the interactive pores. Herein, we
address the important aspects of creating interactive pore sites by kinetic assembly
of porous coordination networks and present detailed case-by-case studies of small
allotrope encapsulation.
Keywords Porous coordination network · Kinetic assembly · Unstable small
sulfur species · Elemental allotropes
12.1 Introduction
12.1.1 Scope of the Book Chapter
The kinetic assembly method for the coordination network formation is introduced in
this chapter. This method is not common in coordination network chemistry, despite
it having a great capacity to create functional materials. Furthermore, the kinetically
assembled networks enabled us to successfully trap and visualize unstable elemental
allotropes.
H. Ohtsu · P. M. Usov · M. Kawano (B)
Tokyo Institute of Technology, Tokyo, Japan
e-mail: mkawano@chem.titech.ac.jp
© Springer Nature Singapore Pte Ltd. 2020
M. Sakamoto and H. Uekusa (eds.), Advances in Organic Crystal Chemistry,
https://doi.org/10.1007/978-981-15-5085-0_12
221