scholarly journals Modification of Structure and Magnetic Properties in Coordination Assemblies Based on [Cu(cyclam)]2+ and [W(CN)8]3−

Crystals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 45 ◽  
Author(s):  
Aleksandra Pacanowska ◽  
Mateusz Reczyński ◽  
Beata Nowicka

The 1D {[CuII(cyclam)]3[WV(CN)8]2.5H2O}n (1·5H2O) (cyclam = 1,4,8,11-tetraazacyclotetradecane) coordination polymer of ladder topology can be obtained in water-alcohol solution from [Cu(cyclam)]2+ and [W(CN)8]3− building blocks. Upon dehydration, 1·5H2O undergoes a single-crystal-to-single-crystal structural transformation to the anhydrous {[CuII(cyclam)]3[WV(CN)8]2}n (1) form, which retains the same topology, but is characterized by shorter Cu-W distances and significantly more bent CN-bridges. The deformation of the coordination skeleton is reflected in magnetic properties: the predominant intra-chain interactions change from ferromagnetic in 1·5H2O to antiferromagnetic in 1. The reaction between the same building blocks in water solution under slow diffusion conditions leads to the formation of a 0D {[CuII(cyclam)(H2O)]2[CuII(cyclam)][WV(CN)8]2}.3H2O pentanuclear assembly (2·3H2O).

2015 ◽  
Vol 2 (4) ◽  
pp. 395-402 ◽  
Author(s):  
Tapan K. Pal ◽  
Dinesh De ◽  
Subhadip Neogi ◽  
Parimal K. Bharadwaj

We describe a 3D flexible Gd(iii)-coordination polymer, constructed from a linear carboxylate ligand, which shows reversible single-crystal to single-crystal “guest-responsive fitting” of the channels and carboxylate shift process, upon inclusion of aldehyde guests.


2008 ◽  
Vol 130 (9) ◽  
pp. 2869-2876 ◽  
Author(s):  
Suzanne M. Neville ◽  
Gregory J. Halder ◽  
Karena W. Chapman ◽  
Martin B. Duriska ◽  
Peter D. Southon ◽  
...  

2017 ◽  
Vol 46 (48) ◽  
pp. 17025-17031 ◽  
Author(s):  
Xu-Feng Yang ◽  
Min Liu ◽  
Hai-Bin Zhu ◽  
Cheng Hang ◽  
Yue Zhao

Promoted by the DMF solvent, the 1D chain structure of 1 can be irreversibly transformed into the 3D sod network structure of 2 in a crystal-to-crystal fashion, which is accompanied by a drastic magnetic change.


2017 ◽  
Vol 72 (12) ◽  
pp. 937-940 ◽  
Author(s):  
Xiao-Hong Zhu ◽  
Xiao-Chun Cheng ◽  
Yun-Hua Qian

AbstractThe neutral, four-fold protonated pyridine-3,5-dicarbox(3,5-dicarboxylatoanilide) (H4L) reacts with Mn(II) salts under hydrothermal conditions to yield a new complex: [Mn2(L)(H2O)2]·H2O (1), which has been characterized by single crystal X-ray diffraction, infrared spectroscopy, and elemental and thermogravimetric analyses. Complex 1 exhibits a binodal (4,8)-connected 3D framework with flu (412.612.84)(46)2 topology. The magnetic properties of 1 were investigated.


2018 ◽  
Vol 42 (4) ◽  
pp. 198-201 ◽  
Author(s):  
Liping Wang ◽  
Erpeng Zhang ◽  
Xiaoli Zhou ◽  
Yufei Wang ◽  
Yanli Liu ◽  
...  

The coordination polymer [Cu3(tci)2(phen)2] n (H3tci = 1,3,5-tris(2-carboxyethyl)isocyanurate; phen = 1,10-phenanthroline) has been synthesised. Single-crystal X-ray diffraction studies have shown that the polymer displays a 2-D metal–organic framework based on linear trinuclear copper cluster units, and its magnetic properties indicate antiferromagnetic interactions.


2015 ◽  
Vol 51 (15) ◽  
pp. 3173-3176 ◽  
Author(s):  
Susan Sen ◽  
Subhadip Neogi ◽  
Kari Rissanen ◽  
Parimal K. Bharadwaj

Guest solvent triggered reversible structural transformation and concomitant Zn(ii) to Cu(ii) transmetalation has been realized through single-crystal to single-crystal fashion in an imidazolium functionalized 3D cationic Zn(ii)-framework.


2015 ◽  
Vol 21 (12) ◽  
pp. 4703-4711 ◽  
Author(s):  
Quan-Quan Li ◽  
Chun-Yan Ren ◽  
Yang-Yang Huang ◽  
Jian-Li Li ◽  
Ping Liu ◽  
...  

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