Spectral studies with coordination behaviour of (NO3) and (NCS) anions and EPR parameters of chromium(III) complexes which have different chromospheres macrocyclic ligands: Synthesis and electronic spectroscopy
作者:Sulekh Chandra、Rajiv Kumar
DOI:10.1016/j.saa.2006.02.024
日期:2007.1
New macrocyclic ligands were prepared and chromium(III) stability in the marcrocyclic cavities are reported. Two of them have four-coordinate [N2O2]:[N4], third one has five-coordinate [N2O2S] and the last one has six-coordinate [N4O2] donor macrocyclic cavities. These macrocyclic ligands have been synthesized with their chromium(III) complexes which have mononuclear nature and their structural features
Efficient synthesis of 18–40 membered macrocyclic polyoxadiamides and polyoxatetraamides via ring closing metathesis
作者:Yehia A. Ibrahim、Elizabeth John
DOI:10.1016/j.tet.2005.10.031
日期:2006.1
Ringclosingmetathesis of the appropriate 1,ω-dienes led to efficient synthetic approaches towards the corresponding macrocyclic polyoxadiamides and tetraamides with 18–40 membered ring sizes in good to excellent yields using Grubbs' catalyst.
Novel and effective calcium ionbinding molecular fluorescent probes have been developed by systematic structural modification of BAPTA ionophore. The comprehensive computational studies suggested the role of the coordination number in the chelator moiety.
Improved microwave synthesis of unsymmetrical N,N'-diaryl-1,2-aminoethane and imidazolidinium salts as precursors of N-heterocyclic carbenes
作者:Yehia A. Ibrahim、Nouria A. Al-Awadi、Talal F. Al-Azemi、Elizabeth John
DOI:10.1039/c4ra06128d
日期:——
Microwave facilitates the difficult to accomplish lithium aluminium hydride reduction of bis-unsymmetric-diaryloxamides 3 especially for the sterically hindered mesityl derivatives.
EPOXY COMPOUND, EPOXY RESIN, EPOXY RESIN COMPOSITION, CURED RESIN PRODUCT, PREPREG, FIBER-REINFORCED COMPOSITE MATERIAL, AND PRODUCTION METHODS FOR THESE
申请人:Teijin Limited
公开号:US20210292471A1
公开(公告)日:2021-09-23
The present invention provides an epoxy compound indicated by chemical formula (1) (in chemical formula (1), X indicates a C1-10 aliphatic hydrocarbon group, R
1
and R
2
each independently indicate one selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group, an aromatic group, an alkoxy group, and a halogen atom.)