Self-organization of dipyridylcalix[4]pyrrole into a supramolecular cage for dicarboxylates

RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 19794-19796 ◽  
Author(s):  
Naoaki Kiriyama ◽  
Masahiro Ebihara ◽  
Taro Udagawa ◽  
Hidekazu Miyaji

Cis-dipyridylcalix[4]pyrrole formed a supramolecular cage upon dimerization and coordination with Pd(ii). The cage molecule recognised suberate selectively by hydrogen bonding to the two calix[4]pyrroles.

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
Makoto Tadokoro ◽  
Kyosuke Isoda ◽  
Yasuko Tanaka ◽  
Yuko Kaneko ◽  
Syoko Yamamoto ◽  
...  

Anionic tris (biimidazolate) nickelate (II) ([Ni(Hbim)3]−), which is a hydrogen-bonding (H-bonding) molecular building block, undergoes self-organization into honeycomb-sheet superstructures connected by complementary intermolecular H-bonds. The crystal obtained from the stacking of these sheets is assembled into channel frameworks, approximately 2 nm wide, that clathrate two cationic K+-crown ether derivatives organised into one-dimensional (1D) double-columnar arrays. In this study, we have shown that all five cationic guest-included crystals form nanochannel structures that clathrate the 1-D double-columnar arrays of one of the four types of K+-crown ether derivatives, one of which induces a polymorph. This is accomplished by adaptably fitting two types of anionic [Ni(Hbim)3]−host arrays. One is a network with H-bonded linkages alternating between the two different optical isomers of the and types with flexible H-bonded [Ni(Hbim)3]−. The other is a network of a racemate with 1-D H-bonded arrays of the same optical isomer for each type. Thus, [Ni(Hbim)3]−can assemble large cations such as K+crown-ether derivatives into double-columnar arrays by highly recognizing flexible H-bonding arrangements with two host networks of and .


2019 ◽  
Author(s):  
Thomas Anglim Lagones ◽  
Stephanie Boer ◽  
Nicholas White

<div> <p>A small organic cage molecule (<b>1</b>) containing six nitrile groups was crystallized in the presence of a number of guests with hydrogen bond donor groups, and from different solvents. In total, eight crystal structures of <b>1</b> were obtained, six of which are guest-free and two of which are co-crystals. When the guest was resorcinol or pyrogallol co-crystals did not form, but the presence of the guests directed formation of new crystalline phases that were not observed when the cage was crystallized alone. When the guest was hydroquinone or diaminobenzene, it was possible to isolate co-crystals where the guest hydrogen bonds to some of the nitrile groups of the cage. </p> </div> <br>


Langmuir ◽  
2013 ◽  
Vol 29 (7) ◽  
pp. 2242-2249 ◽  
Author(s):  
Pratap Zalake ◽  
K. George Thomas

2019 ◽  
Author(s):  
Thomas Anglim Lagones ◽  
Stephanie Boer ◽  
Nicholas White

<div> <p>A small organic cage molecule (<b>1</b>) containing six nitrile groups was crystallized in the presence of a number of guests with hydrogen bond donor groups, and from different solvents. In total, eight crystal structures of <b>1</b> were obtained, six of which are guest-free and two of which are co-crystals. When the guest was resorcinol or pyrogallol co-crystals did not form, but the presence of the guests directed formation of new crystalline phases that were not observed when the cage was crystallized alone. When the guest was hydroquinone or diaminobenzene, it was possible to isolate co-crystals where the guest hydrogen bonds to some of the nitrile groups of the cage. </p> </div> <br>


2019 ◽  
Vol 19 (7) ◽  
pp. 4121-4126
Author(s):  
Thomas Anglim Lagones ◽  
Stephanie A. Boer ◽  
Nicholas G. White

2012 ◽  
Vol 124 (27) ◽  
pp. 6747-6751 ◽  
Author(s):  
Shiki Yagai ◽  
Yusaku Goto ◽  
Xu Lin ◽  
Takashi Karatsu ◽  
Akihide Kitamura ◽  
...  

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