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Electronic Supplementary Material ( ESI ) for ChemComm
a. College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China b. Beijing NMR Center, Peking University, Beijing, 100871, China c. School of Life Sciences;Expand
Photoinduced electron transfer in pentacoordinated complex of zinc tetraphenylporphyrin and isoquinoline N-oxide. Crystal structure, spectroscopy and DFT studies
Abstract A novel, pentacoordinated complex of (1:1) zinc tetraphenylporphyrin and isoquinoline N-oxide (ZnTPP–IQNO) was synthesized and its crystal structure along with photophysical properties byExpand
Single organic molecules for photonic quantum technologies
It is shown that quantum emitters based on single molecules hold promise to play a key role in the development of quantum science and technologies and in single-molecule sensing and quantum-sensing applications. Expand
12-hydroxy-1-azaperylene-limiting case of the ESIPT system: enol-keto tautomerization in S0 and S1 states.
Observation of absorption and fluorescence of both tautomeric forms and lack of large Stokes shift offluorescence of the keto form classify HAP as the limiting case of the excited-state intramolecular proton transfer system. Expand
Vertically π-expanded coumarin--synthesis via the Scholl reaction and photophysical properties.
The strategic placement of naphthalene at the 4-position of coumarin allowed us to fuse these two moieties via aromatic dehydrogenation under Scholl conditions and the intriguing optical properties of this π-expanded Coumarin are discussed on the basis of quantum chemical calculations. Expand
How a Small Structural Difference Can Turn Optical Properties of π-Extended Coumarins Upside Down: The Role of Non-Innocent Saturated Rings.
According to quantum chemical calculations, 3H-chromeno[3,4-c]pyridine-4,5-diones show the specific mechanism of fluorescence quenching, which is related to the intermolecular interaction between adjacent molecules prevailing to a greater extent in the crystal lattice. Expand
Low-temperature spectra of the analogues of 10-hydroxybenzo[h]quinoline as an indication of barrierless ESIPT.
The π-expansion of the 10-HBQ chromophore led to compounds possessing diverse photophysical properties, ranging from the non-ESIPT strongly fluorescent molecule of 10-hydroxy-1-azaperylene to weakly emitting (or nonemitting) molecules, where ESIPT occurs very efficiently. Expand
The forbidden emission of protonated proton sponge
Abstract The forbidden and strongly redshifted emission of monoprotonated proton sponge (PS·H + ) in water and in acidified acetonitrile is reported. An explanation consistent with both the stronglyExpand
Dipyrrolonaphthyridinediones--structurally unique cross-conjugated dyes.
Red-emissive dyes based on a previously unknown skeleton--dipyrrolo[1,2-b:1',2'-g][2,6]naphthyridine-5,11-dione--can be easily synthesized from simple and inexpensive reagents by one- or two-stepExpand
Double head-to-tail direct arylation as a viable strategy towards the synthesis of the aza-analog of dihydrocyclopenta[hi]aceanthrylene--an intriguing antiaromatic heterocycle.
This molecule, comprising of two imidazo[1,2-a]pyridine units, is antiaromatic due to the changes in the efficiency of π-electron ring current and it belongs to a class of seldom encountered compounds with a dark lowest electronically excited singlet state. Expand