Nanoengineered self-assembled two-dimensional and three-dimensional materials

2013 ◽  
Author(s):  
Richard O. Claus ◽  
Jennifer H. Lalli ◽  
Vince Baranauskas
Keyword(s):  
Three Dimensional ◽  
Two Dimensional ◽  
Self Assembled

Square-grid coordination networks of (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) in its clathrate with two guest molecules of 1,2-dichlorobenzene: supramolecular isomerism of the porphyrin self-assembly

2009 ◽  
Vol 65 (3) ◽  
pp. m139-m142 ◽  
Author(s):  
Rajesh Koner ◽  
Israel Goldberg
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Coordination Networks ◽  
Guest Molecules ◽  
Square Grid ◽  
Supramolecular Isomerism ◽  
Self Assembled ◽  
Solvent Molecules

The title compound, (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) 1,2-dichlorobenzene disolvate, [Zn(C40H24N8)]·2C6H4Cl2, contains a clathrate-type structure. It is composed of two-dimensional square-grid coordination networks of the self-assembled porphyrin moiety, which are stacked one on top of the other in a parallel manner. The interporphyrin cavities of the overlapping networks combine into channel voids accommodated by the dichlorobenzene solvent. Molecules of the porphyrin complex are located on crystallographic inversion centres. The observed two-dimensional assembly mode of the porphyrin units represents a supramolecular isomer of the unique three-dimensional coordination frameworks of the same porphyrin building block observed earlier. The significance of this study lies in the discovery of an additional supramolecular isomer of the rarely observed structures of metalloporphyrins self-assembled directly into extended coordination polymers without the use of external ligand or metal ion auxiliaries.

scholarly journals Hydrothermal synthesis of mpg-C3N4 and Bi2WO6 nest-like structure nanohybrids with enhanced visible light photocatalytic activities

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38682-38690 ◽  
Author(s):  
Xingwang Zhu ◽  
Jinyuan Liu ◽  
Zhenzhen Zhao ◽  
Jia Yan ◽  
Yuanguo Xu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Three Dimensional ◽  
Anisotropic Growth ◽  
Two Dimensional ◽  
Photocatalytic Activities ◽  
Self Assembled ◽  
2D Nanosheets ◽  
Visible Light Photocatalytic

Due to the anisotropic growth of Bi2WO6, the zero-dimensional (0D) nanoparticles can be transformed into two-dimensional (2D) nanosheets, and finally self-assembled into three-dimensional (3D) nest-like structures.

Structure, Magnetic and Ion-Exchange Properties of Self-Assembled Triaza-Copper(II)-Oxalate Hybrides Having Nanoscale One-Dimensional Channel

2006 ◽  
Vol 6 (11) ◽  
pp. 3338-3342 ◽  
Author(s):  
Mee Chang ◽  
Minchul Chung ◽  
Byung Soo Lee ◽  
Chee-Hun Kwak
Keyword(s):  
Magnetic Property ◽  
Three Dimensional ◽  
Antiferromagnetic Interaction ◽  
Two Dimensional ◽  
One Dimensional ◽  
X Ray ◽  
Dimensional Network ◽  
Self Assembled ◽  
Exchange Properties ◽  
Strong Antiferromagnetic Interaction

The X-ray structure, porous and magnetic property of a self-assembled network 1 is described in detail. The single crystal X-ray analysis provides 1 as a three-dimensional network, which contains two-dimensional permanent ring forming nanoscale one-dimensional channels. The inter-replacement of perchlorate and hexafluorophosphate anions in solid 1 proves its porous structure. There is somewhat strong antiferromagnetic interaction (J = −74.1 cm−1) between two copper(II) ions through oxalate bridge and weak antiferromagnetic interaction (J = −5.1 cm−1) through AEP ligand.

Self-assembled monolayers as two-dimensional crystals: relationship to three-dimensional crystals

CrystEngComm ◽  
2007 ◽  
Vol 9 (2) ◽  
pp. 176-180 ◽  
Author(s):  
Edwin C. Constable ◽  
Marc Häusler ◽  
B. A. Hermann ◽  
Catherine E. Housecroft ◽  
Markus Neuburger ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Self Assembled Monolayers ◽  
Two Dimensional ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Retraction: Two-dimensional nanosheets associated with one-dimensional single-crystalline nanorods self-assembled into three-dimensional flower-like Mn3O4 hierarchical architectures

2017 ◽  
Vol 19 (36) ◽  
pp. 25222-25222
Author(s):  
Anna Simpson
Keyword(s):  
Three Dimensional ◽  
Chem Phys ◽  
Two Dimensional ◽  
Single Crystalline ◽  
One Dimensional ◽  
Hierarchical Architectures ◽  
Self Assembled ◽  
Phys Chem Chem Phys

Retraction of ‘Two-dimensional nanosheets associated with one-dimensional single-crystalline nanorods self-assembled into three-dimensional flower-like Mn3O4 hierarchical architectures’ by Mei Wang et al., Phys. Chem. Chem. Phys., 2014, 16, 21742–21746.

Growth patterns of self-assembled InAs quantum dots near the two-dimensional to three-dimensional transition

1997 ◽  
Vol 70 (23) ◽  
pp. 3140-3142 ◽  
Author(s):  
M. Colocci ◽  
F. Bogani ◽  
L. Carraresi ◽  
R. Mattolini ◽  
A. Bosacchi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Three Dimensional ◽  
Growth Patterns ◽  
Two Dimensional ◽  
Inas Quantum Dots ◽  
Self Assembled

Retracted Article: Two-dimensional nanosheets associated with one-dimensional single-crystalline nanorods self-assembled into three-dimensional flower-like Mn3O4 hierarchical architectures

2014 ◽  
Vol 16 (39) ◽  
pp. 21742-21746 ◽  
Author(s):  
Mei Wang ◽  
Liming Cheng ◽  
Quanbao Li ◽  
Zhiwen Chen ◽  
Shilong Wang
Keyword(s):  
Chemical Reaction ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Reaction Route ◽  
Single Crystalline ◽  
One Dimensional ◽  
Retracted Article ◽  
Hierarchical Architectures ◽  
Self Assembled

In this work, three-dimensional flower-like Mn3O4 hierarchical architectures have been successfully synthesized by a novel chemical reaction route.

High Resolution Microscopy of Multi-Layered Biological Crystals

1982 ◽  
Vol 40 ◽  
pp. 80-83
Author(s):  
H.A. Cohen ◽  
T.W. Jeng ◽  
W. Chiu
Keyword(s):  
High Resolution ◽  
Low Dose ◽  
Three Dimensional ◽  
Data Interpretation ◽  
Two Dimensional ◽  
Biological Objects ◽  
Density Maps ◽  
Density Map ◽  
Complex Crystal ◽  
High Resolution Microscopy

This tutorial will discuss the methodology of low dose electron diffraction and imaging of crystalline biological objects, the problems of data interpretation for two-dimensional projected density maps of glucose embedded protein crystals, the factors to be considered in combining tilt data from three-dimensional crystals, and finally, the prospects of achieving a high resolution three-dimensional density map of a biological crystal. This methodology will be illustrated using two proteins under investigation in our laboratory, the T4 DNA helix destabilizing protein gp32*I and the crotoxin complex crystal.

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