Peculiar phenomena of structural transformations triggered from a nickel coordination polymer

CrystEngComm ◽  
2015 ◽  
Vol 17 (8) ◽  
pp. 1839-1847 ◽  
Author(s):  
Meng Kang ◽  
Guo-Ping Yang ◽  
Lei Hou ◽  
Wei-Ping Wu ◽  
Yun-Long Wu ◽  
...  

Four multi-dimensional nickel-based coordination polymers have been prepared, and their solvent-mediated and solid-state structural transformations have been observed and studied systematically.

CrystEngComm ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 888-894 ◽  
Author(s):  
Ashkan Kianimehr ◽  
Kamran Akhbari ◽  
Jonathan White ◽  
Anukorn Phuruangrat

Two new Na and K coordination polymers with halogen bond, metallophilic and hydrogen bonding interactions were synthesized. These two compounds were synthesized sonochemically and solid-state conversions of them to each other were investigated.


2013 ◽  
Vol 19 (12) ◽  
pp. 3962-3968 ◽  
Author(s):  
Goutam Kumar Kole ◽  
Abdul Malik Puthan Peedikakkal ◽  
Belinda Mei Fang Toh ◽  
Jagadese J. Vittal

RSC Advances ◽  
2014 ◽  
Vol 4 (33) ◽  
pp. 17265-17267 ◽  
Author(s):  
Lida Hashemi ◽  
Ali Morsali

Reversible anion-exchange of 2D lead(ii) coordination polymers from [Pb(4-bpdb)Br2]n (1) to [Pb(4-bpdb)Cl2]n (2) by solid state anion-replacement has been studied.


2018 ◽  
Vol 54 (76) ◽  
pp. 10695-10697 ◽  
Author(s):  
Yasuchika Hasegawa ◽  
Yui Miura ◽  
Yuichi Kitagawa ◽  
Satoshi Wada ◽  
Takayuki Nakanishi ◽  
...  

A spiral-type chiral Eu(iii) coordination polymer showed strong luminescence, effective CD and CPL properties compared with a mono-nuclear chiral Eu(iii) complex in the solid state.


Inorganics ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 115
Author(s):  
Hitoshi Kumagai ◽  
Sadahiro Yagishita ◽  
Ken Kanazashi ◽  
Mariko Ishii ◽  
Shinya Hayami ◽  
...  

We herein report the synthesis, single-crystal structures of coordination polymers, and structural transformations of complexes employing 1,4,5,6-tetrahydro-5,6-dioxo-2,3-pyrazinedicarbonitrile (tdpd2−) and pyrazine (pyz) as bridging ligands. {[M(H2O)4(pyz)][M(tdpd)2(pyz)]·6(H2O)}n, [1·10H2O and 2·10H2O where M = Co (1) and Zn (2)], consists of two types of crystallographically independent one-dimensional (1D) structures packed together. One motif, [M(tdpd)2(pyz)]2− (A), is an anionic infinite pyz bridged 1D array with chelating tdpd2− ligands, and the other motif is a cationic chain, [M(H2O)4(pyz)]2+ (B), which is decorated with four terminal water molecules. The 1D arrays (A) and (B) are arranged in parallel by multi-point hydrogen-bonding interactions in an alternate (A)(B)(A)(B) sequence extending along the c-axis. Both compounds exhibit structural transformations driven by thermal dehydration processes around 350 K to give partially dehydrated forms, 1·2H2O and 2·2H2O. The structural determination of the partially dehydrated form, 2·2H2O, reveals a solid-state structural transformation from a 1D chain structure to a two-dimensional (2D) coordination sheet structure, [Zn2(tdpd)2(H2O)2(pyz)]n (2·2H2O). Further heating to 500 K yields the anhydrous form 2. While the virgin samples of 1·10H2O and 2·10H2O crystallize in different crystal systems, powder X-ray diffraction (PXRD) measurements of the dehydrated forms, 1·2H2O and 2·2H2O, are indicative of the same structure. The structural transformation is irreversible for 1·10H2O at ambient conditions. On the other hand, compound 2·10H2O shows a reversible structural change. The solid-state structural transformation for 1·10H2O was also confirmed by monitoring in-situ magnetic susceptibility, which is consistent with other thermally-induced measurements.


Sign in / Sign up

Export Citation Format

Share Document