149806-06-4Relevant articles and documents
The Role of Substituent Effects in Tuning Metallophilic Interactions and Emission Energy of Bis-4-(2-pyridyl)-1,2,3-triazolatoplatinum(II) Complexes
Prabhath, M. R. Ranga,Romanova, Julia,Curry, Richard J.,Silva, S. Ravi P.,Jarowski, Peter D.
, p. 7949 - 7953 (2015)
The photoluminescence spectra of a series of 5-substituted pyridyl-1,2,3-triazolato PtII homoleptic complexes show weak emission tunability (ranging from λ=397-408 nm) in dilute (10-6 M) ethanolic solutions at the monomer level and strong tunability in concentrated solutions (10-4 M) and thin films (ranging from λ=487-625 nm) from dimeric excited states (excimers). The results of density functional calculations (PBE0) attribute this "turn-on" sensitivity and intensity in the excimer to strong Pt-Pt metallophilic interactions and a change in the excited-state character from singlet metal-to-ligand charge transfer (1MLCT) to singlet metal-metal-to-ligand charge transfer (1MMLCT) emissions in agreement with lifetime measurements. Turn-on tunability: A series of bis-4-(2-pyridyl)-1,2,3-triazolatoplatinum(II) complexes display variable emission tunability. At low concentration, the emission can be tuned only slightly by changing the nature of the substituent but at higher concentrations tunability is enhanced. This "turn-on" sensitivity in the excimeric emission is attributed to strong Pt-Pt metallophilic interactions and a change in the excited-state character.
Self-assembled porphyrin-based cage complexes, M11L6 (M = ZnII, CdII), with inner coordination sites in their crystal structure
Iizuka, Fumiya,Nakamura, Takashi,Sato, Hiroyasu,Shionoya, Mitsuhiko,Ube, Hitoshi
, p. 323 - 326 (2020)
Herein we report self-assembled metallo-cage complexes, M11(L1)6 (M = ZnII, CdII), formed from 4-fold-symmetric ZnII-porphyrin-centered tetrakis-meso-(5¤-methyl-2,2¤-bipyridyl) ligands. The structures of these two D3-symmetric cages have been characterized by 1D and 2D NMR, ESI-MS, and XRD analyses. A common structural feature of these complexes is their inner molecular binding site at the axial position of each square-pyramidal ZnII-porphyrin in the crystal structure, which would provide a method to place molecular coordination sites inside or outside the cage complex with the minimum chemical modification.
NOVEL COMPOUNDS FOR INHIBITION OF JANUS KINASE 1
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Page/Page column 100; 117, (2020/12/11)
An object of the invention is to provide compounds as selective JAK1 inhibitor, a process for preparation of the inhibitors, a composition containing the compounds and utility of the compounds.
PISTON FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING THE PISTON FOR AN INTERNAL COMBUSTION ENGINE
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, (2018/08/03)
The present invention relates to compounds of general formula (I), wherein A represents an optionally substituted heterocycle group, B represents an aryl or heteroaryl group and wherein X, R1, R2, R3, R4 and R5 are as defined in the description. Compounds of formula (I) are useful to destroy, inhibit, or prevent the growth or spread of cells, especially malignant cells, into surrounding tissues implicated in a variety of human and animal diseases.