- Structure property relationship of linear and angular pyrazine-based structural isomers with terminal D-A groups and evaluation of their photophysical properties
-
A series of pyrazine-based linear and angular shaped push-pull chromophores were synthesized by Sonogashira reaction and were further investigated by X-ray analysis. The photophysical properties were comprehensively studied both experimentally and through
- Meti, Puttavva,Park, Dong-Jin,Gong, Young-Dae
-
-
Read Online
- The difference in the CO2adsorption capacities of different functionalized pillar-layered metal-organic frameworks (MOFs)
-
The excessive use of fossil energy has caused the CO2concentration in the atmosphere to increase year by year. MOFs are ideal CO2adsorbents that can be used in CO2capture due to their excellent characteristics. Studies of the structure-activity relationship between the small structural differences in MOFs and the CO2adsorption capacities are helpful for the development of efficient MOF-based CO2adsorbents. Therefore, a series of pillar-layered MOFs with similar structural and different functional groups were designed and synthesized. The CO2adsorption tests were carried out at 273 K to explore the relationship between the small structural differences in MOFs caused by different functional groups and the CO2adsorption capacities. Significantly, compound6which contains a pyridazinyl group has a 30.9% increase in CO2adsorption capacity compared to compound1with no functionalized group.
- Gao, Xiang-Jing,Zheng, He-Gen
-
supporting information
p. 9310 - 9316
(2021/07/12)
-
- NOVEL COMPOUNDS AS GPR119 AGONISTS
-
The present invention relates to novel compounds of formula (I) as GPR119 agonist, composition compositions containing such compounds and method of preparation thereof.
- -
-
Paragraph 0592-0594
(2017/10/26)
-
- RuII multinuclear metallosupramolecular rack-type architectures of polytopic hydrazone-based ligands: Synthesis, structural features, absorption spectra, redox behavior, and near-infrared luminescence
-
A novel class of polytopic hydrazone-based ligands was synthesized. They gave heteroleptic RuII polynuclear rack-like complexes of formula [Runterpyn molecular strand)]2n+ (terpy = 2,2′:6′,2″-terpyridine). The new rack-like systems can be viewed as being made of two identical or roughly identical peripheral subunits separated by several similar metal-containing spacer subunits. The presence of pyrazine or pyrimidine units within the molecular multitopic strands introduces additional chemical diversity; whereas a pyrimidine unit leads to appended orthogonal subunits that are on the same side with regard to the main molecular strand, a pyrazine unit leads to orthogonal subunits that lie on different sides. Mixing pyrazine and pyrimidine units within the same (bridging) molecular strand also allows peculiar and topographically controlled geometries to be obtained. Redox studies provided evidence that each species undergoes reversible redox processes at mild potentials, which can be assigned to specific subunits of the multicomponent arrays. Non-negligible electronic coupling takes place among the various subunits, and some electron derealization ex-tending over the overall bridging molecular strand takes place. In particular, oxidation data suggest that the systems can behave as p-type "molecular wires" and reduction data indicate that n-type electron conduction can occur within the multimetallic framework. All the multinuclear racks exhibit 3MLCT emission, both at 77 K in rigid matrix and at 298 K in fluid solution, which takes place in the near-infrared region (emission maxima in the 1000-1100 nm region), and is quite structured. Rigidity of the molecular structures and derealization within the large bridging ligands are proposed to contribute to the occurrence of the rather uncommon MLCT infrared emission, which is potentially interesting for optical communication devices.
- Stadler, Adrian-Mihail,Puntoriero, Fausto,Nastasi, Francesco,Campagna, Sebastiano,Lehn, Jean-Marie
-
scheme or table
p. 5645 - 5660
(2010/07/16)
-
- BENZO ‘ D!AZEPINE DERIVATIVES FOR THE TREATMENT OF NEUROLOGICAL DISORDERS
-
The present invention relates to benzazepine derivatives of formula ( I ) wherein: R1 represents -C3-7 cycloalkyl optionally substituted by C1-3 alkyl; having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of neurological and psychiatric disorders.
- -
-
Page/Page column 24-25
(2010/02/07)
-