N N FeClCthenrt N Br N CuI P oxylenereflux N N N CSCScheme S1 The synthetic pathway of KT Wong HF Chen and FC Fang Org Lett ID: 105711
Download Pdf The PPT/PDF document "Supplementary Material (ESI) for This jo..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Supplementary Material (ESI) for This journal is © the Owner Societies 2010 A spiro-configured ambipolar host material for impressively efficient single-layer green electrophosphorescent devices Wen-Yi Hung*, Ting-Chih Wang, Hao-Chih Chiu, Hsiao-Fan Chen, Ken-Tsung Wong Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Fax: 886 2 24634360; Tel: 886 2 24622192 ext. 6718; E-mail:wenhung@mail.ntou.edu.tw Department of Chemistry, National Taiwan University, Taipei 106, Taiwan. Fax 886 2 33661667; Tel: 886 2 33661665; E-mail: kenwong@ntu.edu.tw Electronic Supplementary Information The synthesis of CSC depicted in Scheme S-1 was reported previously. In this paper, we report herein an improved bromination method of 4,5-diaza-9,9-spirobifluorene through stepwise temperature control to afford 4,5-diaza-2,7-dibromo-9,9-spirobifluorene in 95% yield without tedious column separation. The final product (CSC) was synthesized in 77% yield by Cu-mediated C-N bond formation of 4,5-diaza-2,7-dibromo-9,9-spirobifluorene with an excess amount of carbazole in the presence of a catalytic amount of biphenyl-2-yldicyclohexylphosphane. N N ,FeClCthenr.t. N Br N CuI, P ,o-xylene,reflux N N N CSCScheme S-1. The synthetic pathway of K.-T. Wong, H.-F. Chen and F.-C. Fang, Org. Lett.2006, 3501. K.-T. Wong, R.-T. Chen, F.-C. Fang, C.-C. Wu and Y.-T. Lin Org. Lett.2005 Supplementary Material (ESI) for This journal is © the Owner Societies 2010 Phosphor HOMO/LUMO(PPy)Ir(acac) 5.6/3.0Ir(PPy) 5.2/2.8(PBi)Ir(acac) 5.12/2.44(TPm)Ir(acac) 5.45/3.1 (AC-2) LiF/AlITO/pedot5.3 eV 2.36 eV CSC5.63 eVFigure S-2 Energy levels of and the green phosphors used in this study.