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- W2103262637 abstract "We report the synthesis, the photophysical and the two-photon absorption (2PA) properties of a series of octupolar bipyrimidine-based ligands incorporating N-substituted amines as terminal donor groups. The effect of replacing phenylvinylene π-conjugated linkers by fluorenylvinylene ones was also investigated. The linear absorption spectrum of these compounds is dominated by an intensive charge transfer band which is sensitive to N-substitution and the π-bridge nature. The excitation anisotropy spectrum indicates that this band encompasses multiple S0 → Sn transitions, whose occurrence is well rationalized on the basis of the Frenkel exciton model. The 2PA spectrum also corroborates the presence of several electronic transitions. In apolar or moderately polar medium, excited ligands mainly deactivate through a highly emissive intramolecular charge transfer (ICT) state localized within a single branch of the chromophore. In highly polar medium, the solvent-induced stabilization of the low emissive twisted intramolecular charge transfer (TICT) state leads to a severe quenching of the fluorescence. The same mechanism is observed upon complexation with Zn2+. According to single-crystal X-ray analyses, metal-induced planarization of the bipyrimidine chelating site was observed for the short length ligands. Such a dimensional change from D2d to D2h symmetry leads to a decrease of 2PA cross-sections with respect to the free ligands. A divergent effect is observed for the complex with the long length ligand since the three-dimensional structure is maintained which induces a sizeable increase of the 2PA cross-section with a maximum value of up to 2000 GM." @default.
- W2103262637 created "2016-06-24" @default.
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- W2103262637 creator A5083129271 @default.
- W2103262637 creator A5088807955 @default.
- W2103262637 date "2014-01-01" @default.
- W2103262637 modified "2023-09-25" @default.
- W2103262637 title "Metal-induced dimensionality tuning in a series of bipyrimidine-based ligands: a tool to enhance two-photon absorption" @default.
- W2103262637 cites W1566106921 @default.
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- W2103262637 cites W1943871403 @default.
- W2103262637 cites W1964438101 @default.
- W2103262637 cites W1964460707 @default.
- W2103262637 cites W1964516236 @default.
- W2103262637 cites W1968069557 @default.
- W2103262637 cites W1968713106 @default.
- W2103262637 cites W1968730224 @default.
- W2103262637 cites W1973470892 @default.
- W2103262637 cites W1977075494 @default.
- W2103262637 cites W1980456489 @default.
- W2103262637 cites W1988590252 @default.
- W2103262637 cites W1989880122 @default.
- W2103262637 cites W1991262047 @default.
- W2103262637 cites W1998189126 @default.
- W2103262637 cites W2001768227 @default.
- W2103262637 cites W2005536483 @default.
- W2103262637 cites W2006327416 @default.
- W2103262637 cites W2006744863 @default.
- W2103262637 cites W2011589991 @default.
- W2103262637 cites W2013514466 @default.
- W2103262637 cites W2014937484 @default.
- W2103262637 cites W2015501698 @default.
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- W2103262637 cites W2015886513 @default.
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- W2103262637 cites W2020586725 @default.
- W2103262637 cites W2029444989 @default.
- W2103262637 cites W2030314851 @default.
- W2103262637 cites W2030615905 @default.
- W2103262637 cites W2031834876 @default.
- W2103262637 cites W2032289398 @default.
- W2103262637 cites W2033484974 @default.
- W2103262637 cites W2033946198 @default.
- W2103262637 cites W2036241481 @default.
- W2103262637 cites W2037809313 @default.
- W2103262637 cites W2037977449 @default.
- W2103262637 cites W2039763825 @default.
- W2103262637 cites W2040601780 @default.
- W2103262637 cites W2045923163 @default.
- W2103262637 cites W2048594906 @default.
- W2103262637 cites W2049749373 @default.
- W2103262637 cites W2058812986 @default.
- W2103262637 cites W2061464631 @default.
- W2103262637 cites W2065589473 @default.
- W2103262637 cites W2071499728 @default.
- W2103262637 cites W2074588391 @default.
- W2103262637 cites W2085659903 @default.
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- W2103262637 cites W2090572943 @default.
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- W2103262637 cites W2094729894 @default.
- W2103262637 cites W2094852733 @default.
- W2103262637 cites W2095724960 @default.
- W2103262637 cites W2103906298 @default.
- W2103262637 cites W2106401515 @default.
- W2103262637 cites W2113504999 @default.
- W2103262637 cites W2126337685 @default.
- W2103262637 cites W2133190808 @default.
- W2103262637 cites W2139993630 @default.
- W2103262637 cites W2153617234 @default.
- W2103262637 cites W2154098848 @default.
- W2103262637 cites W2157714571 @default.
- W2103262637 cites W2161471966 @default.
- W2103262637 cites W2164475333 @default.
- W2103262637 cites W2167837028 @default.
- W2103262637 cites W2168036745 @default.
- W2103262637 cites W2173671462 @default.
- W2103262637 cites W2316448356 @default.
- W2103262637 cites W2332629866 @default.
- W2103262637 cites W2491458126 @default.
- W2103262637 cites W2950713969 @default.
- W2103262637 cites W2953033378 @default.
- W2103262637 cites W2953075698 @default.
- W2103262637 cites W2953200898 @default.
- W2103262637 cites W4211095184 @default.
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- W2103262637 doi "https://doi.org/10.1039/c3tc31370k" @default.
- W2103262637 hasPublicationYear "2014" @default.
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