Building Block Approach to the Construction of Long-Lived Osmium(II) and Ruthenium(II) Multimetallic Complexes Incorporating the Tridentate Bridging Ligand 2,3,5,6-Tetrakis(2-pyridyl)pyrazine

1996 ◽  
Vol 35 (4) ◽  
pp. 818-824 ◽  
Author(s):  
Lisa M. Vogler ◽  
Karen J. Brewer
Keyword(s):  
Building Block ◽  
Bridging Ligand ◽  
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.

Fusing Nickelocene and Cyclopentadiene by Two Silyl Bridges. Synthesis and 1H, 13C, and 29Si NMR Investigation of a Paramagnetic Building Block for High-Nuclear Metallocenes

1994 ◽  
Vol 49 (6) ◽  
pp. 763-769 ◽  
Author(s):  
Monika Fritz ◽  
Johann Hiermeier ◽  
Frank H. Köhler
Keyword(s):  
Building Block ◽  
Nmr Spectra ◽  
29Si Nmr ◽  
Nmr Spectrum ◽  
Anti Isomer ◽  
Bridging Ligand ◽  
Cyclopentadienyl Anion ◽  
C Nmr

Two isomers of tetrahydro-4,4,8,8-tetramethyl-4,8-disila-s-indacene (LH2) were monodeprotonated and treated with cyclopentadienyl anion and NiBr2(THF)1,5 to give a 72% yield of the mixed nickelocene CpNi(LH) where a cyclopentadiene is fused to a nickelocene. The analysis of the paramagnetic 1H, 13C, and 29Si NMR spectra demonstrated that the syn and anti isomer of CpNi(LH) formed in a ratio of 5/1. Both isomers could be deprotonated to yield the anion CpNi(L-). According to its 13C NMR spectrum the bridging ligand L is not planar

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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