Nonempirical calculations of NMR indirect spin–spin coupling constants. Part 15: pyrrolylpyridines
作者:Yury Yu. Rusakov、Leonid B. Krivdin、Elena Yu. Schmidt、Albina I. Mikhaleva、Boris A. Trofimov
DOI:10.1002/mrc.1828
日期:2006.7
Conformationalstudy of 2‐(2‐pyrrolyl)pyridine and 2,6‐di(2‐pyrrolyl)pyridine was performed on the basis of the experimental measurements and high‐level ab initio calculations of the one‐bond 13C–13C, 13C–1H and 15N–1H spin–spincouplingconstants showing marked stereochemicalbehavior upon the internal rotation around the pyrrole–pyridine interheterocyclic bonds. Both compounds were established to
申请人:École Polytechnique Fédérale de Lausanne (EPFL)
公开号:EP2678346B1
公开(公告)日:2018-04-04
SELECTIVE OPTICAL AQUEOUS AND NON-AQUEOUS DETECTION OF FREE SULFITES
申请人:The Research Foundation for The State
University of New York
公开号:EP3692366A1
公开(公告)日:2020-08-12
SELECTIVE OPTICAL AQUEOUS AND NONAQUEOUS DETECTION OF FREE SULFITES
申请人:The Research Foundation for the State University of New York
公开号:US20200363382A1
公开(公告)日:2020-11-19
4-pyrrolylpyridine, a novel anion sensor, displays a substantial color loss upon addition of sodium sulfite in aqueous solvents. A variety of anions were tested, including halides, phosphates, sulfates, and hydroxide, but all solutions remained unchanged aside from the sulfite, which displayed bleaching. Described here is a method for which the exact concentration of sulfites in a consumer product can be determined. The test is sensitive over a broad range of sulfites, from 0.84 ppm to over 10,000 ppm, and is accurate with a standard deviation of ±0.01 ppm.
HEXACOORDINATE PINCER COMPLEXES AND APPLICATIONS THEREOF
申请人:The University of North Carolina at Charlotte
公开号:US20210217974A1
公开(公告)日:2021-07-15
A variety of hexacoordinate pincer complexes are described herein having electronic structure advantageous for electronic and/or optoelectronic applications. In some embodiments, the pincer complexes are luminescent, exhibiting fluorescence and/or phosphorescence. Briefly, a hexacoordinate complex comprises a central atom selected from the group consisting of silicon, germanium, and tin, and two pincer ligands bound to the central atom, wherein the hexacoordinate complex is luminescent. In another aspect, a hexacoordinate complex comprises a central atom selected from the group consisting of silicon, germanium and tin, and two pincer ligands bound to the central atom, wherein the difference between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of the hexacoordinate complex is at least 1.5 eV.