Semiconducting and electroluminescent cyclometalated platinum (II) complexes : from molecular functional materials to supramolecular architecture and self-assembled nanomaterials

2010 ◽  
Author(s):  
Mai-yan Yuen
2018 ◽  
Vol 47 (15) ◽  
pp. 5614-5645 ◽  
Author(s):  
Atanu Jana ◽  
Steffen Bähring ◽  
Masatoshi Ishida ◽  
Sébastien Goeb ◽  
David Canevet ◽  
...  

Tetrathiafulvalene- (TTF-) based macrocyclic systems, cages and supramolecularly self-assembled 3D constructs have been extensively explored as functional materials for sensing and switching applications.


2001 ◽  
Author(s):  
ALAN R BURNS ◽  
DARRYL Y SASAKI ◽  
R W CARPICK ◽  
JOHN A SHELNUTT ◽  
C JEFFREY BRINKER

Photochem ◽  
2022 ◽  
Vol 2 (1) ◽  
pp. 32-57
Author(s):  
Shashikana Paria ◽  
Prasenjit Maity ◽  
Rafia Siddiqui ◽  
Ranjan Patra ◽  
Shubhra Bikash Maity ◽  
...  

Luminescent micelles are extensively studied molecular scaffolds used in applied supramolecular chemistry. These are particularly important due to their uniquely organized supramolecular structure and chemically responsive physical and optical features. Various luminescent tags can be incorporated with these amphiphilic micelles to create efficient luminescent probes that can be utilized as “chemical noses” (sensors) for toxic and hazardous materials, bioimaging, drug delivery and transport, etc. Due to their amphiphilic nature and well-defined reorganized self-assembled geometry, these nano-constructs are desirable candidates for size and shape complementary guest binding or sensing a specific analyte. A large number of articles describing micellar fluorogenic probes are reported, which are used for cation/anion sensing, amino acid and protein sensing, drug delivery, and chemo-sensing. However, this particular review article critically summarizes the sensing application of nitroaromatic (e.g., trinitrotoluene (TNT), trinitrobenzene (TNB), trinitrophenol (TNP), dinitrobenzene (DNB), etc.) and nitramine explosives (e.g., 1,3,5-trinitro-1,3,5-triazinane, trivially named as “research department explosive” (RDX), 1,3,5,7-tetranitro-1,3,5,7-tetrazocane, commonly known as “high melting explosive” (HMX) etc.). A deeper understanding on these self-assembled luminescent “functional materials” and the physicochemical behavior in the presence of explosive analytes might be helpful to design the next generation of smart nanomaterials for forensic applications. This review article will also provide a “state-of-the-art” coverage of research involving micellar–explosive adducts demonstrating the intermolecular charge/electron transfer (CT/ET) process operating within the host–guest systems.


2016 ◽  
Vol 72 (5) ◽  
pp. 442-450 ◽  
Author(s):  
Ammasai Karthikeyan ◽  
Packianathan Thomas Muthiah ◽  
Franc Perdih

The coordination chemistry of mixed-ligand complexes continues to be an active area of research since these compounds have a wide range of applications. Many coordination polymers and metal–organic framworks are emerging as novel functional materials. Aminopyrimidine and its derivatives are flexible ligands with versatile binding and coordination modes which have been proven to be useful in the construction of organic–inorganic hybrid materials and coordination polymers. Thiophenecarboxylic acid, its derivatives and their complexes exhibit pharmacological properties. Cobalt(II) and copper(II) complexes of thiophenecarboxylate have many biological applications, for example, as antifungal and antitumor agents. Two new cobalt(II) and copper(II) complexes incorporating thiophene-2-carboxylate (2-TPC) and 2-amino-4,6-dimethoxypyrimidine (OMP) ligands have been synthesized and characterized by X-ray diffraction studies, namely (2-amino-4,6-dimethoxypyrimidine-κN)aquachlorido(thiophene-2-carboxylato-κO)cobalt(II) monohydrate, [Co(C5H3O2S)Cl(C6H9N3O2)(H2O)]·H2O, (I), andcatena-poly[copper(II)-tetrakis(μ-thiophene-2-carboxylato-κ2O:O′)-copper(II)-(μ-2-amino-4,6-dimethoxypyrimidine-κ2N1:N3)], [Cu2(C5H3O2S)4(C6H9N3O2)]n, (II). In (I), the CoIIion has a distorted tetrahedral coordination environment involving one O atom from a monodentate 2-TPC ligand, one N atom from an OMP ligand, one chloride ligand and one O atom of a water molecule. An additional water molecule is present in the asymmetric unit. The amino group of the coordinated OMP molecule and the coordinated carboxylate O atom of the 2-TPC ligand form an interligand N—H...O hydrogen bond, generating anS(6) ring motif. The pyrimidine molecules also form a base pair [R22(8) motif]viaa pair of N—H...N hydrogen bonds. These interactions, together with O—H...O and O—H...Cl hydrogen bonds and π–π stacking interactions, generate a three-dimensional supramolecular architecture. The one-dimensional coordination polymer (II) contains the classical paddle-wheel [Cu2(CH3COO)4(H2O)2] unit, where each carboxylate group of four 2-TPC ligands bridges two square-pyramidally coordinated CuIIions and the apically coordinated OMP ligands bridge the dinuclear copper units. Each dinuclear copper unit has a crystallographic inversion centre, whereas the bridging OMP ligand has crystallographic twofold symmetry. The one-dimensional polymeric chains self-assembleviaN—H...O, π–π and C—H...π interactions, generating a three-dimensional supramolecular architecture.


2014 ◽  
Vol 1706 ◽  
Author(s):  
Hiroaki Wakayama ◽  
Hirotaka Yonekura ◽  
Yasuaki Kawai

ABSTRACTPeriodically ordered nanohetero inorganic structures offer great promise due to their unique electric, ionic, magnetic, and photonic properties. Many studies have focused on the formation of periodically ordered nano-hetero inorganic structures through layer-by-layer adsorption, sputtering, and self-assembly methods. However, the construction of three-dimensional periodically ordered nanohetero inorganic structures with desired sizes and morphologies remains a great challenge. We present a simple method for producing three-dimensional periodically ordered inorganic nanoheterostructures with controlled shape and size by replicating self-assembled block copolymers (BCPs) containing precursors of metals and metal oxides. Precursors were dissolved with BCPs in a solvent. Upon evaporation of the solvent, each precursor was selectively introduced into a separate polymer block. Application of an external magnetic field (10 T) to the BCP-precursor composites resulted in a phase transition of from spheres to hexagonal cylinders. Subsequent pyrolytic removal of the BCPs produced periodically ordered nanoheterostructures that were structural replicates of the precursor–BCP composites. Self-assembled nano-hetero inorganic structures of nanoparticles, nanorods and layers in a matrix were produced. The morphology and domain size can be tailored by controlling the molecular weight and relative block length of block copolymers. The controlled size and morphology of the inorganic nanoheterostructures demonstrate the method’s utility for producing highly functional materials.


Langmuir ◽  
2011 ◽  
Vol 27 (20) ◽  
pp. 12760-12768 ◽  
Author(s):  
Antony George ◽  
A. Wouter Maijenburg ◽  
Minh Duc Nguyen ◽  
Michiel G. Maas ◽  
Dave H. A. Blank ◽  
...  

Author(s):  
Yiwei Zhang ◽  
Maggie Ng ◽  
Michael Ho-Yeung Chan ◽  
Nathan Man-Wai Wu ◽  
Lixin Wu ◽  
...  

A series of photochromic triethylene glycol (TEG)-containing spiropyrans (SPs) has been synthesized, and systematic and controlled formation of their self-assembled functional materials has been achieved.


2002 ◽  
Vol 43 (41) ◽  
pp. 7311-7314 ◽  
Author(s):  
Alessandro Casnati ◽  
Chiara Massera ◽  
Nicola Pelizzi ◽  
Ivan Stibor ◽  
Evgueni Pinkassik ◽  
...  

2017 ◽  
Vol 5 (32) ◽  
pp. 6572-6578 ◽  
Author(s):  
Meiding Yang ◽  
Huipeng Zhou ◽  
Yongxin Li ◽  
Qingfeng Zhang ◽  
Juanmin Li ◽  
...  

Distinct peroxidase-like catalytic activity of small organic probe self-assembled nanofibers is reported for the first time.


Sign in / Sign up

Export Citation Format

Share Document