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Two of the platinum(II) complexes have been structurally characterized by X\u2010ray crystallography. Their electrochemical, electronic absorption, and luminescence properties have been investigated. In dichloromethane solution at room temperature, the cyclometalated N^C^N platinum(II) complexes exhibited rich luminescence with well\u2010resolved vibronic\u2010structured emission bands. The emission energies of the complexes are found to be closely related to the electronic properties of the N^C^N ligands. By varying the electronic properties of the cyclometalated ligands, a fine\u2010tuning of the emission energies can be achieved, as supported by computational studies. Multilayer organic light\u2010emitting devices have been prepared by utilizing two of these platinum(II) complexes as phosphorescent dopants, in which a saturated yellow emission with Commission International de I\u2032Eclairage coordinates of (0.50, 0.49) was achieved.\n                  <\/jats:p>","DOI":"10.1002\/chem.201301586","type":"journal-article","created":{"date-parts":[[2013,9,2]],"date-time":"2013-09-02T10:54:38Z","timestamp":1378119278000},"page":"13910-13924","source":"Crossref","is-referenced-by-count":55,"title":["Synthesis and Characterization of Luminescent Cyclometalated Platinum(II) Complexes of 1,3\u2010Bis\u2010Hetero\u2010Azolylbenzenes with Tunable Color for Applications in Organic Light\u2010Emitting Devices through Extension of \u03c0 Conjugation by Variation of the Heteroatom"],"prefix":"10.1002","volume":"19","author":[{"given":"Alan 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