FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2327590906> ?p ?o ?g. }

• W2327590906 endingPage "3826" @default.
• W2327590906 startingPage "3813" @default.
• W2327590906 abstract "A family of complexes (1a-3a and 1b-3b) was prepared, having the structure Ir(N∧C∧N)(N∧C)Cl. Here, N∧C∧N represents a terdentate, cyclometallating ligand derived from 1,3-di(2-pyridyl)benzene incorporating CH3 (1a,b), F (2a,b), or CF3 (3a,b) substituents at the 4 and 6 positions of the benzene ring, and N∧C is 2-phenylpyridine (series a) or 2-(2,4-difluorophenyl)pyridine (series b). The complexes are formed using a stepwise procedure that relies on the initial introduction of the terdentate ligand to form a dichloro-bridged iridium dimer, followed by cleavage with the N∧C ligand. 1H NMR spectroscopy reveals that the isomer that is exclusively formed in each case is that in which the pyridyl ring of the N∧C ligand is trans to the cyclometallating aryl ring of the N∧C∧N ligand. This conclusion is unequivocally confirmed by X-ray diffraction analysis for two of the complexes (1b and 3a). All of the complexes are highly luminescent in degassed solution at room temperature, emitting in the green (1a,b), blue-green (2a,b), and orange-red (3a,b) regions. The bidentate ligand offers independent fine-tuning of the emission energy: for each pair, the “b” complex is blue-shifted relative to the analogous “a” complex. These trends in the excited-state energies are rationalized in terms of the relative magnitudes of the effects of the substituents on the highest occupied and lowest unoccupied orbitals, convincingly supported by time-dependent density functional theory (TD-DFT) calculations. Luminescence quantum yields are high, up to 0.7 in solution and close to unity in a PMMA matrix for the green-emitting complexes. Organic light emitting devices (OLEDs) employing this family of complexes as phosphorescent emitters have been prepared. They display high efficiencies, at least comparable, and in some cases superior, to similar devices using the well-known tris-bidentate complexes such as fac-Ir(ppy)3. The combination of terdentate and bidentate ligands is seen to offer a versatile approach to tuning of the photophysical properties of iridium-based emitters for such applications." @default.
• W2327590906 created "2016-06-24" @default.
• W2327590906 creator A5022345621 @default.
• W2327590906 creator A5055864432 @default.
• W2327590906 creator A5056955223 @default.
• W2327590906 creator A5061442960 @default.
• W2327590906 creator A5073991542 @default.
• W2327590906 creator A5087551752 @default.
• W2327590906 date "2012-03-08" @default.
• W2327590906 modified "2023-10-13" @default.
• W2327590906 title "Luminescent Iridium(III) Complexes with N^∧C^∧N-Coordinated Terdentate Ligands: Dual Tuning of the Emission Energy and Application to Organic Light-Emitting Devices" @default.
• W2327590906 cites W12873206 @default.
• W2327590906 cites W1512388082 @default.
• W2327590906 cites W1607456377 @default.
• W2327590906 cites W1963767481 @default.
• W2327590906 cites W1969504469 @default.
• W2327590906 cites W1970649495 @default.
• W2327590906 cites W1972964515 @default.
• W2327590906 cites W1979102452 @default.
• W2327590906 cites W1987092714 @default.
• W2327590906 cites W1987528118 @default.
• W2327590906 cites W1989105499 @default.
• W2327590906 cites W1990496513 @default.
• W2327590906 cites W1997107645 @default.
• W2327590906 cites W1998945486 @default.
• W2327590906 cites W2000338865 @default.
• W2327590906 cites W2001198725 @default.
• W2327590906 cites W2001823292 @default.
• W2327590906 cites W2003039976 @default.
• W2327590906 cites W2006680993 @default.
• W2327590906 cites W2008648807 @default.
• W2327590906 cites W2010189574 @default.
• W2327590906 cites W2013767827 @default.
• W2327590906 cites W2022573775 @default.
• W2327590906 cites W2025764192 @default.
• W2327590906 cites W2030068595 @default.
• W2327590906 cites W2030401969 @default.
• W2327590906 cites W2031872440 @default.
• W2327590906 cites W2033140465 @default.
• W2327590906 cites W2034750001 @default.
• W2327590906 cites W2036240062 @default.
• W2327590906 cites W2039370145 @default.
• W2327590906 cites W2042595063 @default.
• W2327590906 cites W2043487135 @default.
• W2327590906 cites W2044109308 @default.
• W2327590906 cites W2044187374 @default.
• W2327590906 cites W2048677754 @default.
• W2327590906 cites W2051036147 @default.
• W2327590906 cites W2051293602 @default.
• W2327590906 cites W2058281601 @default.
• W2327590906 cites W2059205366 @default.
• W2327590906 cites W2059511412 @default.
• W2327590906 cites W2060070053 @default.
• W2327590906 cites W2066774243 @default.
• W2327590906 cites W2067855263 @default.
• W2327590906 cites W2068700246 @default.
• W2327590906 cites W2072515914 @default.
• W2327590906 cites W207396953 @default.
• W2327590906 cites W2075999741 @default.
• W2327590906 cites W2077110666 @default.
• W2327590906 cites W2078456489 @default.
• W2327590906 cites W2082316842 @default.
• W2327590906 cites W2086021375 @default.
• W2327590906 cites W2093840577 @default.
• W2327590906 cites W2095915347 @default.
• W2327590906 cites W2095917356 @default.
• W2327590906 cites W2095961221 @default.
• W2327590906 cites W2108624840 @default.
• W2327590906 cites W2119783360 @default.
• W2327590906 cites W2131721476 @default.
• W2327590906 cites W2137213349 @default.
• W2327590906 cites W2137803240 @default.
• W2327590906 cites W2158422033 @default.
• W2327590906 cites W2165521501 @default.
• W2327590906 cites W2166192201 @default.
• W2327590906 cites W271008867 @default.
• W2327590906 cites W2878404963 @default.
• W2327590906 cites W1982667455 @default.
• W2327590906 doi "https://doi.org/10.1021/ic202756w" @default.
• W2327590906 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22400487" @default.
• W2327590906 hasPublicationYear "2012" @default.
• W2327590906 type Work @default.
• W2327590906 sameAs 2327590906 @default.
• W2327590906 citedByCount "92" @default.
• W2327590906 countsByYear W23275909062012 @default.
• W2327590906 countsByYear W23275909062013 @default.
• W2327590906 countsByYear W23275909062014 @default.
• W2327590906 countsByYear W23275909062015 @default.
• W2327590906 countsByYear W23275909062016 @default.
• W2327590906 countsByYear W23275909062017 @default.
• W2327590906 countsByYear W23275909062018 @default.
• W2327590906 countsByYear W23275909062019 @default.
• W2327590906 countsByYear W23275909062020 @default.
• W2327590906 countsByYear W23275909062021 @default.
• W2327590906 countsByYear W23275909062022 @default.
• W2327590906 countsByYear W23275909062023 @default.
• W2327590906 crossrefType "journal-article" @default.
• W2327590906 hasAuthorship W2327590906A5022345621 @default.

• next