One- and three-dimensional octacyanometalate(IV) networks constructed via a building block approach: {[trans-NiII(tn)2(OH2)][trans-NiII(μ-NC)2(tn)2][(μ-NC)3MIV(CN)5]·6H2O} (MIV=Mo, W) and Cs4[CuII(OH2)4]2[CuII(NH3)]4[MoIV(CN)8]4·2H2O

Polyhedron ◽  
2005 ◽  
Vol 24 (14) ◽  
pp. 1845-1854 ◽  
Author(s):  
Jeffrey R. Withers ◽  
Chad Ruschman ◽  
Sean Parkin ◽  
Stephen M. Holmes
Keyword(s):  
Building Block ◽  
Three Dimensional ◽  
Block Approach

scholarly journals Clustering of Protein Structural Fragments Reveals Modular Building Block Approach of Nature

2004 ◽  
Vol 338 (3) ◽  
pp. 611-629 ◽  
Author(s):  
Ashish V. Tendulkar ◽  
Anand A. Joshi ◽  
Milind A. Sohoni ◽  
Pramod P. Wangikar
Keyword(s):  
Building Block ◽  
Block Approach

A ‘Building Block’ Approach To Mixed-Colloid Systems Through Electrostatic Self-Organization

2001 ◽  
Vol 676 ◽  
Author(s):  
Trent H. Galow ◽  
Andrew K. Boal ◽  
Vincent M. Rotello
Keyword(s):  
Particle Size ◽  
Self Assembly ◽  
Building Block ◽  
Acid Base ◽  
Electrostatic Assembly ◽  
Polymer Colloid ◽  
Colloid Systems ◽  
Carboxylic Acid Derivative ◽  
Block Approach ◽  
Shape And Size

ABSTRACTWe have developed a highly modular electrostatically-mediated approach to colloid-colloid and polymer-colloid networks using ‘building block’ and ‘bricks and mortar’ self-assembly methodologies, respectively. The former approach involved functionalization of one type of nanoparticle building block with a primary amine and a counterpart building block with a carboxylic acid derivative. After combining these two systems, acid-base chemistry followed by immediate charge-pairing resulted in the spontaneous formation of electrostatically-bound mixed-nanoparticle constructs. The shape and size of these ensembles were controlled via variation of particle size and stoichiometries. In the ‘bricks and mortar’ approach, a functionalized polymer is combined with complementary nanoparticles to provide mixed polymer-nanoparticle networked structures. A notable feature is the inherent porosity resulting from the electrostatic assembly. The shape and size of these ensembles were controlled via variation of particle size, stoichiometries and the order in which they were added.

scholarly journals Crystal engineered acid-base complexes with 2d and 3d hydrogen bonding systems using p-hydroxybenzoic acid as the building block

2010 ◽  
Vol 75 (4) ◽  
pp. 459-473 ◽  
Author(s):  
Pu Zhao ◽  
Xian Wang ◽  
Fang Jian ◽  
Jun Zhang ◽  
Lian Xiao
Keyword(s):  
Self Assembly ◽  
Building Block ◽  
Three Dimensional ◽  
Hydroxybenzoic Acid ◽  
Acid Base ◽  
3D Network ◽  
Acid And Base ◽  
Butyl Amine ◽  
Bonding Systems ◽  
Simply Connected

p-Hydroxybenzoic acid (p-HOBA) was selected as the building block for self-assembly with five bases, i.e., diethylamine, tert-butyl amine, cyclohexylamine, imidazole and piperazine, and generate the corresponding acid-base complexes 1-5. Crystal structure analyses suggest that proton-transfer from the carboxyl hydrogen to the nitrogen atom of the bases can be observed in 1-4; while only in 5 does a solvent water molecule co-exists with p-HOBA and piperazine. With the presence of O-H?O hydrogen bonds in 1-4, the deprotonated p-hydroxybenzoate anions (p-HOBAA-) are simply connected each other in a head-to-tail motif to form one-dimensional (1D) arrays, which are further extended to distinct two-dimensional (2D) (for 1 and 4) and three-dimensional (3D) (for 2 and 3 ) networks via N-H?O interactions. While in 5, neutral acid and base are combined pair wise by O-H?N and N-H?O bonds to form a 1D tape and then the 1D tapes are sequentially combined by water molecules to create a 3D network. Some interlayer or intralayer C-H?O, C-H?? and ??? interactions help to stabilize the supramolecular buildings. Melting point determination analyses indicate that the five acidbase complexes are not the ordinary superposition of the reactants and they are more stable than the original reactants.

ChemInform Abstract: Synthesis of Thiapyranoside Precursors Using the Building-Block Approach from a Phosphonodifluorodithioacetate.

ChemInform ◽  
2010 ◽  
Vol 33 (26) ◽  
pp. no-no
Author(s):  
Emmanuel Pfund ◽  
Thierry Lequeux ◽  
Michel Vazeux ◽  
Serge Masson
Keyword(s):  
Building Block ◽  
Block Approach

A Building Block Approach to Monofluorinated Organic Compounds

2008 ◽  
Vol 73 (12) ◽  
pp. 1553-1611 ◽  
Author(s):  
Alexander S. Konev ◽  
Alexander F. Khlebnikov
Keyword(s):  
Organic Compounds ◽  
Building Block ◽  
Building Blocks ◽  
Natural Compounds ◽  
Pericyclic Reactions ◽  
Fluoroacetic Acid ◽  
Phosphorus Containing ◽  
Block Approach

Building blocks for the synthesis of monofluorinated organic compounds are reviewed. The synthetic potential of polyhalomethanes, sulfur- and phosphorus-containing building blocks, difluoroethene, polyhaloethanes, fluoroacetic acid derivatives, and other compounds are described. Pericyclic reactions involving fluorinated compounds and application of the methodology of building blocks to the synthesis of monofluorinated pharmaceuticals and analogs of natural compounds are considered. The review with 317 references covers mainly the literature from 1996 through 2007.

A one building block approach for defect-enhanced conjugated microporous polymers: defect utilization for recyclable and catalytic biomass conversion

2018 ◽  
Vol 6 (32) ◽  
pp. 15553-15557 ◽  
Author(s):  
Kyoungil Cho ◽  
Sang Moon Lee ◽  
Hae Jin Kim ◽  
Yoon-Joo Ko ◽  
Seung Uk Son
Keyword(s):  
Building Block ◽  
Solid Acid ◽  
Biomass Conversion ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Microporous Polymers ◽  
Block Approach ◽  
Conjugated Microporous Polymers

A one building block approach for conjugated microporous polymers resulted in enhanced defects which were utilized for the development of solid acid catalysts.

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