Organosilicon molecules such as silicon carbide (SiC), dicarbide (c-SiC2), tricarbide (c-SiC3), and tetracarbide (SiC4) represent basic molecular building blocks connected to the growth of silicon-carbide dust grains in outflow circumstellar envelopes carbon-rich asymptotic giant branch (AGB) stars. Yet, fundamental mechanisms formation carbides early processes that initiate coupling silicon–ca...

The synthesis, photoswitchability and NIR emitting properties of a novel π-extended pyrene derivative, peripherally decorated with four azobenzenyl-ethynyl legs, are reported.

Although they decompose rapidly to produce cyanocarbenes, ethynyl azides were generated from (chloroethynyl)arenes and trapped for the first time by 1,3-dipolar cycloaddition at cyclooctyne.

The first benzene-centered, phthalocyanine hexamer has been synthesized by a dicobaltoctacarbonyl-catalyzed trimerization reaction of an ethynyl-bridged bisphthalocyanine and characterized by different spectrometric and spectroscopic techniques.

The preparation and dynamic behavior of two functionally rigid and degenerate [2]rotaxanes (14 PF(6) and 24 PF(6)) in which a pi-electron deficient tetracationic cyclophane, cyclobis(paraquat-p-phenylene) (CBPQT(4+)) ring, shuttles back and forth between two pi-electron-rich naphthalene (NP) stations by making the passage along an ethynyl-phenylene-(PH)-ethynyl or butadiyne rod, are described. ...

We describe the synthesis and photophysical properties in both solution solid-state of dual-state emitters undergoing an Excited-State Intramolecular Proton Transfer (ESIPT) process. These fluorophores, built around 2-(2?-hydroxyphenyl)benzoxazole (HBO) scaffold incorporate a N-methylpyridinium unit, at 3 or 5 position phenol ring, prone to reduce vibrational relaxation excited-state thanks res...

The asymmetric unit of the title compound, C20H15N, comprises two crystallographically independent mol-ecules (A and B). In each mol-ecule, the N atom adopts an approximately trigonal planar geometry, lying 0.009 (1) or 0.003 (1) Å from the plane defined by the C atoms of the aromatic substituents to which it is attached. In the crystal, mol-ecules are linked via C-H⋯π inter-actions, forming a ...