2003
DOI: 10.1039/b308664j
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Improved transparency–nonlinearity trade-off with boroxine-based octupolar molecules

Abstract: A series of octupolar molecules derived from the boroxine framework were designed and their optical nonlinearities were investigated by performing harmonic light scattering experiments in solution; the molecules were found to combine excellent transparency in the near UV-visible region (lambdamax < or = 280 nm) and significant first-order hyperpolarisabilities (up to beta(0) = 56 x 10(-30) esu).

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Cited by 67 publications
(52 citation statements)
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“…[3] They have been designed by chemical functionalization of a central core and can be roughly classified into three main classes: 1) 2D molecules of global D 3h symmetry obtained by 1,3,5-functionalization of a central aromatic core (phenyl, [4] triazine, [5] or boroxine [6] ); 2) D 3h or slightly twisted D 3 propeller-like molecules, such as functionalized trivalent carbon (carbocation, carbanion, or radical), [7] or nitrogen atoms;…”
Section: Introductionmentioning
confidence: 99%
“…[3] They have been designed by chemical functionalization of a central core and can be roughly classified into three main classes: 1) 2D molecules of global D 3h symmetry obtained by 1,3,5-functionalization of a central aromatic core (phenyl, [4] triazine, [5] or boroxine [6] ); 2) D 3h or slightly twisted D 3 propeller-like molecules, such as functionalized trivalent carbon (carbocation, carbanion, or radical), [7] or nitrogen atoms;…”
Section: Introductionmentioning
confidence: 99%
“…Resultados análogos foram também obtidos para os compostos boroxínicos octupolares em experimentos de geração e espalhamento de harmônicos de luz laser. 7 A presença de um orbital vacante p propicia ao átomo de boro, inserido em uma cadeia carbônica insaturada, uma participação ativa na dinâmica do sistema conjugado de elétrons, estendendo-lhe a conjugação e permitindo o surgimento de uma pequena ou grande separação de cargas devido ao seu caráter receptor de elétrons. Espera-se que essa característica ímpar dote os compostos organoboranos trivalentes de boas ou ótimas propriedades óticas não-lineares.…”
Section: Introductionunclassified
“…Boroxine ring The boroxine core is stable, planar 26,45 in both DFT optimized and crystallographic structures, electron-deficient, and has a low aromaticity 46 .…”
Section: Systems Under Considerationmentioning
confidence: 99%
“…Indeed, despite boron inorganic crystals such as BBO (beta barium borate, β-BaB 2 O 4 ) , which is widely used in wavelength conversion devices, have long been known to display interesting NLO properties, the potentialities of molecular boroxine derivatives for NLO have not been overlooked until recently 26 in the context of a nonlinearitytransparency trade-off.…”
Section: -Introductionmentioning
confidence: 99%