A series of bisimine-bridged dicatechol ligands 2-H(4)-5-H(4) were synthesized and were used to prepare triple-strandeddinuclear helicate-type complexes with a length of up to more than 2 nm. X-ray structural analyses of Na(4)[(2)(3)V(2)], Na(4)[(3)(3)Ti(2)], Na(4)[(4)(3)Ti(2)], and Na(4)[(5)(3)Ti(2)], as well as temperature-dependent NMR investigations of Na(4)[(4)(3)Ti(2)] and Na(4)[(5)(3)Ti(2)]
3,3′-{(1E,2E)-Hydrazine-1,2-diylidenedi[(E)methylylidene]}dibenzene-1,2-diol (BCAz-H4): an easy to prepare but very useful building block for the self-assembly of triple-stranded helicates; the X-ray crystal structure of Na4[(BCAz)3Ti2]·7 dmf·H2O
The azine bridged dicatechol ligand BCAz-H4 forms triple-stranded dinuclearhelicates with titanium(IV) ions in the presence of alkali metal carbonate. The X-ray structure of Na4[(BCAz)3Ti2]·7 dmf·H2O shows that countercations can be encapsulated in the interior of the helicate binding not only to internal oxygen atoms of the catecholates but also to nitrogen atoms of the spacer.
POLYMERS, SUBSTRATES, METHODS FOR MAKING SUCH, AND DEVICES COMPRISING THE SAME
申请人:Avertica Inc.
公开号:EP2953993B1
公开(公告)日:2018-01-31
[EN] POLYMERS, SUBSTRATES, METHODS FOR MAKING SUCH, AND DEVICES COMPRISING THE SAME<br/>[FR] POLYMÈRES, SUBSTRATS, PROCÉDÉS DE FABRICATION DE CEUX-CI, ET DISPOSITIFS COMPRENANT CEUX-CI
申请人:AVERTICA INC
公开号:WO2014124130A1
公开(公告)日:2014-08-14
The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same.
An Ullmann Coupling of Aryl Iodides and Amines Using an Air-Stable Diazaphospholane Ligand
作者:Minghua Yang、Fei Liu
DOI:10.1021/jo0712291
日期:2007.11.1
A copper-based catalytic system, using an air-stable diazaphospholane as the ligand, was developed for an efficient Ullmann reaction between aryl iodides and alkyl or heterocyclic amines.