Nanocavity-enriched Co3O4@ZnCo2O4@NC porous nanowires derived from 1D metal coordination polymers for fast Li+ diffusion kinetics and super Li+ storage

2021 ◽  
Author(s):  
Haibin Wang ◽  
Yongjun Zheng ◽  
Zilin Peng ◽  
Xinlong Liu ◽  
Chen Qu ◽  
...  

Nanocavity-enriched Co3O4@ZnCo2O4@NC porous nanowires have been triumphantly prepared by two-step annealing processes of one-dimensional (1D) coordination polymer precursor. Such unique nanowires with nanocavity-based porous channels can provide a large specific...

1997 ◽  
Vol 52 (1) ◽  
pp. 125-134 ◽  
Author(s):  
Rolf W. Saalfrank ◽  
Roland Harbig ◽  
Oliver Struck ◽  
Frank Hampel ◽  
Eva Maria Peters ◽  
...  

Reaction of a methanolic copper(II) acetate solution with tetrazolyl enol derivatives 2a or 2b leads to the formation of the corresponding lD-coordination polymer 1∞[CuL2] 3a and pseudo 1D-coordination polymer [CuL2]2 3b, respectively. On the contrary, reaction of 2c with methanolic copper(II) acetate solution yields OH-bridged 1D-coordination polymer 1∞[CuL2(MeOH)2 3c. Single-crystal X-ray diffraction of the supramolecular species 3 established unequivocally the structures of the stairlike coordination compounds. Reaction of a methanolic copper(II) acetate solution with amidotetrazole derivative 6 leads to the formation of the lD-coordination polymer 1∞ [CuL2] 7. The structure of 7 has been established by X-ray structure analysis


2013 ◽  
Vol 17 (01n02) ◽  
pp. 86-91 ◽  
Author(s):  
Hiromitsu Maeda ◽  
Hiroaki Kobayashi ◽  
Ryo Akuta

A novel dipyrrolyl metal-coordination ligand dimer directly connected at the meso positions showed the formation of a ZnII -bridged coordination polymer and the spontaneous transformation to a meso–meso- and singly β–β-fused tetrapyrrolyl molecule in solution by C–C bond formation and concomitant proton migration.


2021 ◽  
Author(s):  
Claire Deville ◽  
Henrik Særkjær Jeppesen ◽  
Vickie McKee ◽  
Nina Lock

Controlled bottom-up synthesis of amorphous coordination polymers with tailored metal coordination is a research field in its infancy. In this study, synthesis control was achieved to selectively prepare one-dimensional (1D)...


Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3358
Author(s):  
Sadaf Rauf ◽  
Agata Trzesowska-Kruszynska ◽  
Tomasz Sierański ◽  
Marcin Świątkowski

Three new copper coordination compounds derived from 2,2-bis(hydroxymethyl)propionic acid (dmpa) and hexamethylenetetramine (hmta) were obtained and their crystal structures were determined. The stoichiometry of the reagents applied in the syntheses reflects the metal to ligand molar ratio in the formed solid products. Due to the multiple coordination modes of the used ligands, wide structural diversity was achieved among synthesized compounds, i.e., mononuclear [Cu(dmp)2(hmta)2(H2O)] (1), dinuclear [Cu2(dmp)4(hmta)2] (2), and 1D coordination polymer [Cu2(dmp)4(hmta)]n (3). Their supramolecular structures are governed by O—H•••O and O—H•••N hydrogen bonds. The compounds were characterized in terms of absorption (UV-Vis and IR) and thermal properties. The relationships between structural features and properties were discussed in detail. Owing to discrepancies in the coordination mode of a dmp ligand, bidentate chelating in 1, and bidentate bridging in 2 and 3, there is a noticeable change in the position of the bands corresponding to the stretching vibrations of the carboxylate group in the IR spectra. The differences in the structures of the compounds are also reflected in the nature and position of the UV-Vis absorption maxima, which are located at lower wavelengths for 1.


2021 ◽  
Author(s):  
Nathaniel E. Richey ◽  
Shirin Borhan ◽  
Stacey Bent

Coordination polymers deposited by hybrid molecular layer deposition (MLD) techniques are of interest as highly conformal, functional materials. Addition of a second metal into these coordination polymers can result in...


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