Assembling Magnetic Nanowires into Networks: A Layered CoII Carboxylate Coordination Polymer Exhibiting Single-Chain-Magnet Behavior

2006 ◽  
Vol 118 (38) ◽  
pp. 6458-6462 ◽  
Author(s):  
Yan-Zhen Zheng ◽  
Ming-Liang Tong ◽  
Wei-Xiong Zhang ◽  
Xiao-Ming Chen
Keyword(s):  
Coordination Polymer ◽  
Magnetic Nanowires ◽  
Single Chain

A one dimensional coordination polymer composed of antiferromagnetically coupled disk-like [Mn7] units

CrystEngComm ◽  
2018 ◽  
Vol 20 (43) ◽  
pp. 6963-6969
Author(s):  
En-Che Yang ◽  
Han-Sheng Huang ◽  
Shao-Yun Huang ◽  
Shi-Yi Huang ◽  
Yu-Ying Chang ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Single Chain ◽  
One Dimensional

A single-chain magnet (SCM) was constructed from disk-like Mn7 clusters linked by azide units.

An unusual water-bridged homospin CoII single-chain magnet

2014 ◽  
Vol 50 (48) ◽  
pp. 6340-6342 ◽  
Author(s):  
Xiaozhou Ma ◽  
Zhenjie Zhang ◽  
Wei Shi ◽  
Leilei Li ◽  
Jiyong Zou ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Single Chain

A 3D coordination polymer has been constructed by linking water-bridged cobalt chains via dicarboxylic ligands to show interesting SCM behaviour.

Magnetic investigations of monocrystalline [Co(NCS)2(L)2]n: new insights into single-chain relaxations

2021 ◽  
Author(s):  
Magdalena Ceglarska ◽  
Michael Böhme ◽  
Tristan Neumann ◽  
Winfried Plass ◽  
Christian Nather ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Coordination Polymer ◽  
Single Crystal ◽  
Single Chain ◽  
Large Single Crystal ◽  
The Family

The large single crystal of compound from the family of coordination polymer [Co(NCS)2(L)2]n chains was synthesized and its magnetic properties are reported. [Co(NCS)2(4-(3-phenylpropyl)pyridine)2]n is ferromagnetic with Tc = 3:39 K....

scholarly journals A single-chain magnet based on linear [MnIII2MnII] units

2014 ◽  
Vol 50 (94) ◽  
pp. 14873-14876 ◽  
Author(s):  
Constantina Papatriantafyllopoulou ◽  
Sotiris Zartilas ◽  
Manolis J. Manos ◽  
Céline Pichon ◽  
Rodolphe Clérac ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Single Chain ◽  
One Dimensional

The synthesis, structure and single-chain magnet properties of a unique one-dimensional coordination polymer based on a linear mixed valent [MnIII2MnII] repeating unit are described.

scholarly journals A zig-zag uranyl(v)–Mn(ii) single chain magnet with a high relaxation barrier

2015 ◽  
Vol 51 (56) ◽  
pp. 11309-11312 ◽  
Author(s):  
Lucile Chatelain ◽  
Floriana Tuna ◽  
Jacques Pécaut ◽  
Marinella Mazzanti
Keyword(s):  
Coordination Polymer ◽  
Energy Barrier ◽  
High Energy ◽  
Single Chain ◽  
High Energy Barrier ◽  
Repeated Unit

A 1D zig-zag coordination polymer based on a cation–cation [(UVO2)MnII] repeated unit shows single chain magnet (SCM) behaviour with a high energy barrier of 122 K.

Cryo-electron microscopy of two-dimensional crystals of reduced type B botulinum neurotoxin

1992 ◽  
Vol 50 (1) ◽  
pp. 530-531
Author(s):  
P. F. Flicker ◽  
V.S. Kulkarni ◽  
J. P. Robinson ◽  
G. Stubbs ◽  
B. R. DasGupta
Keyword(s):  
Disulfide Bonds ◽  
Clostridium Botulinum ◽  
Structural Changes ◽  
Two Dimensional ◽  
Type B ◽  
Single Chain ◽  
Muscle Paralysis ◽  
Cryo Electron Microscopy ◽  
Disulfide Linkages ◽  
Intracellular Action

Botulinum toxin is a potent neurotoxin produced by Clostridium botulinum. The toxin inhibits release of neurotransmitter, causing muscle paralysis. There are several serotypes, A to G, all of molecular weight about 150,000. The protein exists as a single chain or or as two chains, with two disulfide linkages. In a recent investigation on intracellular action of neurotoxins it was reported that type B neurotoxin can inhibit the release of Ca++-activated [3H] norepinephrine only if the disulfide bonds are reduced. In order to investigate possible structural changes in the toxin upon reduction of the disulfide bonds, we have prepared two-dimensional crystals of reduced type B neurotoxin. These two-dimensional crystals will be compared with those of the native (unreduced) type B toxin.

Fine structure and properties of defects in naturally occurring silicates and oxides

1990 ◽  
Vol 48 (4) ◽  
pp. 460-461
Author(s):  
David R. Veblen
Keyword(s):  
Chemical Reactions ◽  
High Resolution Electron Microscopy ◽  
Extended Defects ◽  
Single Chain ◽  
Naturally Occurring ◽  
Resolution Electron ◽  
Fine Structures ◽  
Image Simulations ◽  
Similar Crystal Structure

Extended defects and interfaces control many processes in rock-forming minerals, from chemical reactions to rock deformation. In many cases, it is not the average structure of a defect or interface that is most important, but rather the structure of defect terminations or offsets in an interface. One of the major thrusts of high-resolution electron microscopy in the earth sciences has been to identify the role of defect fine structures in reactions and to determine the structures of such features. This paper will review studies using HREM and image simulations to determine the structures of defects in silicate and oxide minerals and present several examples of the role of defects in mineral chemical reactions. In some cases, the geological occurrence can be used to constrain the diffusional properties of defects.The simplest reactions in minerals involve exsolution (precipitation) of one mineral from another with a similar crystal structure, and pyroxenes (single-chain silicates) provide a good example. Although conventional TEM studies have led to a basic understanding of this sort of phase separation in pyroxenes via spinodal decomposition or nucleation and growth, HREM has provided a much more detailed appreciation of the processes involved.

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