Temperature, Cooling Rate, and Additive-Controlled Supramolecular Isomerism in Four Pb(II) Coordination Polymers with an in Situ Ligand Transformation Reaction

2012 ◽  
Vol 12 (11) ◽  
pp. 5338-5348 ◽  
Author(s):  
Dongsheng Deng ◽  
Leilei Liu ◽  
Bao-Ming Ji ◽  
Guojie Yin ◽  
Chenxia Du
Keyword(s):  
Cooling Rate ◽  
Coordination Polymers ◽  
Supramolecular Isomerism ◽  
Transformation Reaction

Reaction-temperature-dependent supramolecular isomerism of copper(I) coordination polymers with incorporated thiocyanate and in situ generated 5-methyltetrazolate ligands

Polyhedron ◽  
2012 ◽  
Vol 42 (1) ◽  
pp. 265-270 ◽  
Author(s):  
Ali Mahmoudi ◽  
Saeed Dehghanpour ◽  
Camelia Gholamrezazadeh ◽  
Maryam Jahanbakhshyan ◽  
Amir H. Mahmoudkhani ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Reaction Temperature ◽  
Temperature Dependent ◽  
Supramolecular Isomerism

Controlled Synthesis of Isomorphous Coordination Polymers via in Situ Ligand Transformation Reaction: Crystal Structure, Thermal and Magnetic Properties

2010 ◽  
Vol 10 (9) ◽  
pp. 4060-4067 ◽  
Author(s):  
Muhammad A. Nadeem ◽  
Mohan Bhadbhade ◽  
Roland Bircher ◽  
John A. Stride
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Coordination Polymers ◽  
Controlled Synthesis ◽  
Transformation Reaction

Construction of five Zn(ii)/Cd(ii) coordination polymers derived from a new linear carboxylate/pyridyl ligand: design, synthesis, and photocatalytic properties

2016 ◽  
Vol 45 (31) ◽  
pp. 12352-12361 ◽  
Author(s):  
Lei-Lei Liu ◽  
Cai-Xia Yu ◽  
Ji-Min Du ◽  
Shi-Min Liu ◽  
Jing-Shuai Cao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Coordination Polymers ◽  
Ligand Design ◽  
Photocatalytic Properties ◽  
Design Synthesis ◽  
Transformation Reaction ◽  
Pyridyl Ligand

Reactions of Cd(OAc)2/Zn(OAc)2 with a new linear carboxylate/pyridyl ligand under different templates via an in situ ligand transformation reaction produced five new CPs. Complexes 1–5 exhibited relatively good photocatalytic activity towards the degradation of methylene blue.

scholarly journals Shear-Induced and Nanofiber-Nucleated Crystallization of Novel Aliphatic–Aromatic Copolyesters Delineated for In Situ Generation of Biodegradable Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2315
Author(s):  
Ramin Hosseinnezhad
Keyword(s):  
Shear Rate ◽  
Cooling Rate ◽  
Isothermal Crystallization ◽  
Cellulose Nanofibers ◽  
Crystallization Time ◽  
Nucleation Density ◽  
Shear Rates ◽  
Biodegradable Nanocomposites ◽  
In Situ Generation

The shear-induced and cellulose-nanofiber nucleated crystallization of two novel aliphatic–aromatic copolyesters is outlined due to its significance for the in situ generation of biodegradable nanocomposites, which require the crystallization of nanofibrous sheared inclusions at higher temperatures. The shear-induced non-isothermal crystallization of two copolyesters, namely, poly(butylene adipate-co-succinate-co-glutarate-co-terephthalate) (PBASGT) and poly(butylene adipate-co-terephthalate) (PBAT), was studied following a light depolarization technique. To have a deep insight into the process, the effects of the shear rate, shear time, shearing temperature and cooling rate on the initiation, kinetics, growth and termination of crystals were investigated. Films of 60 μm were subjected to various shear rates (100–800 s−1) for different time intervals during cooling. The effects of the shearing time and increasing the shear rate were found to be an elevated crystallization temperature, increased nucleation density, reduced growth size of lamella stacks and decreased crystallization time. Due to the boosted nucleation sites, the nuclei impinged with each other quickly and growth was hindered. The effect of the cooling rate was more significant at lower shear rates. Shearing the samples at lower temperatures, but still above the nominal melting point, further shifted the non-isothermal crystallization to higher temperatures. As a result of cellulose nanofibers’ presence, the crystallization of PBAT, analyzed by DSC, was shifted to higher temperatures.

Syntheses, structures and gas sorption properties of two coordination polymers with a unique type of supramolecular isomerism

2015 ◽  
Vol 2 (2) ◽  
pp. 136-140 ◽  
Author(s):  
Xiao-Lin Qi ◽  
Jia-Wen Ye ◽  
Rui-Biao Lin ◽  
Pei-Qin Liao ◽  
Si-Yang Liu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Structural Difference ◽  
Sorption Properties ◽  
Gas Sorption ◽  
Unique Type ◽  
Supramolecular Isomerism ◽  
Porous Properties

Two genuine supramolecular isomers with a unique type of structural difference and completely different porous properties have been synthesized and characterized.

Four unexpected lanthanide coordination polymers involving in situ reaction of solvent N, N-Dimethylformamide

2015 ◽  
Vol 225 ◽  
pp. 216-221 ◽  
Author(s):  
Jun-Cheng Jin ◽  
Wen-Quan Tong ◽  
Ai-Yun Fu ◽  
Cheng-Gen Xie ◽  
Wen-Gui Chang ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
In Situ Reaction ◽  
Lanthanide Coordination Polymers

The construction of Cu(i)/Cu(ii) coordination polymers based on pyrazine–carboxylate: Structural diversity tuned by in situ hydrolysis reaction

CrystEngComm ◽  
2013 ◽  
Vol 15 (26) ◽  
pp. 5359 ◽  
Author(s):  
Zhen-Zhen Wen ◽  
Xi-Ling Wen ◽  
Song-Liang Cai ◽  
Sheng-Run Zheng ◽  
Jun Fan ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Structural Diversity ◽  
Hydrolysis Reaction

scholarly journals Study of the Effect of Carbon on the Contraction of Hypo-Peritectic Steels during Initial Solidification by Surface Roughness

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 982 ◽  
Author(s):  
Dazhi Pu ◽  
Guanghua Wen ◽  
Dachao Fu ◽  
Ping Tang ◽  
Junli Guo
Keyword(s):  
Surface Roughness ◽  
Cooling Rate ◽  
Solidification Process ◽  
Casting Process ◽  
Continuous Casting Process ◽  
Peritectic Steel ◽  
Laser Confocal Microscope ◽  
Initial Solidification

In the continuous casting process, the shrinkage of the peritectic phase transition during the initial solidification process has an important influence on the surface quality of peritectic steel. The initial solidification process of 0.10C%, 0.14C%, and 0.16C% peritectic steels was observed in situ by a high temperature laser confocal microscope, and the contraction degree during initial solidification was characterized by surface roughness. The results showed that under the cooling rate of 20 °C/s, the surface roughness value Ra(δ/γ) of 0.10C% peritectic steel was 32 μm, the Ra(δ/γ) value of 0.14C% peritectic steel was 25 μm, and the Ra(δ/γ) value of 0.16C% peritectic steel was 17 μm. With increasing carbon content, the contraction degree of the δ→γ transformation decreased, and the value of the surface roughness Ra(δ/γ) declined. Therefore, surface roughness can characterize the contraction degree of the δ→γ transformation in the initial solidification process of peritectic steel under the condition of a large cooling rate.

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