Tri-, tetra- and pentamers of 9,9'-spirobifluorenes through full ortho -linkage: High triplet-energy pure hydrocarbon host for blue phosphorescent emitter

Cong Fan; Yonghua Chen; Pei Gan; Chuluo Yang; Cheng Zhong; Jingui Qin; Dongge Ma

doi:10.1021/ol1024184

Tri-, tetra- and pentamers of 9,9'-spirobifluorenes through full ortho -linkage: High triplet-energy pure hydrocarbon host for blue phosphorescent emitter

Cong Fan, Yonghua Chen, Pei Gan, Chuluo Yang, Cheng Zhong, Jingui Qin, Dongge Ma

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

4,4'-Dibromo-9,9'-spirobifluorene was first synthesized, and from this intermediate, three fully ortho-linked tri-, tetra-, and pentamers of 9,9'-spirobifluorenes were constructed. The full ortho-linkage impedes the π conjugation of fluorene units, and guarantees their high triplet energies (E_T = 2.80 eV). A device with the trimer as the first pure hydrocarbon host material for blue phosphor FIrpic shows a maximum current efficiency of 25 cd/A.

Original language	English
Pages (from-to)	5648-5651
Number of pages	4
Journal	Organic Letters
Volume	12
Issue number	24
DOIs	https://doi.org/10.1021/ol1024184
State	Published - 17 Dec 2010
Externally published	Yes

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10.1021/ol1024184

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title = "Tri-, tetra- and pentamers of 9,9'-spirobifluorenes through full ortho -linkage: High triplet-energy pure hydrocarbon host for blue phosphorescent emitter",

abstract = "4,4'-Dibromo-9,9'-spirobifluorene was first synthesized, and from this intermediate, three fully ortho-linked tri-, tetra-, and pentamers of 9,9'-spirobifluorenes were constructed. The full ortho-linkage impedes the π conjugation of fluorene units, and guarantees their high triplet energies (ET = 2.80 eV). A device with the trimer as the first pure hydrocarbon host material for blue phosphor FIrpic shows a maximum current efficiency of 25 cd/A.",

author = "Cong Fan and Yonghua Chen and Pei Gan and Chuluo Yang and Cheng Zhong and Jingui Qin and Dongge Ma",

year = "2010",

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doi = "10.1021/ol1024184",

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T1 - Tri-, tetra- and pentamers of 9,9'-spirobifluorenes through full ortho -linkage

T2 - High triplet-energy pure hydrocarbon host for blue phosphorescent emitter

AU - Fan, Cong

AU - Chen, Yonghua

AU - Gan, Pei

AU - Yang, Chuluo

AU - Zhong, Cheng

AU - Qin, Jingui

AU - Ma, Dongge

PY - 2010/12/17

Y1 - 2010/12/17

N2 - 4,4'-Dibromo-9,9'-spirobifluorene was first synthesized, and from this intermediate, three fully ortho-linked tri-, tetra-, and pentamers of 9,9'-spirobifluorenes were constructed. The full ortho-linkage impedes the π conjugation of fluorene units, and guarantees their high triplet energies (ET = 2.80 eV). A device with the trimer as the first pure hydrocarbon host material for blue phosphor FIrpic shows a maximum current efficiency of 25 cd/A.

AB - 4,4'-Dibromo-9,9'-spirobifluorene was first synthesized, and from this intermediate, three fully ortho-linked tri-, tetra-, and pentamers of 9,9'-spirobifluorenes were constructed. The full ortho-linkage impedes the π conjugation of fluorene units, and guarantees their high triplet energies (ET = 2.80 eV). A device with the trimer as the first pure hydrocarbon host material for blue phosphor FIrpic shows a maximum current efficiency of 25 cd/A.

UR - http://www.scopus.com/inward/record.url?scp=78650335242&partnerID=8YFLogxK

U2 - 10.1021/ol1024184

DO - 10.1021/ol1024184

M3 - 文章

AN - SCOPUS:78650335242

SN - 1523-7060

VL - 12

SP - 5648

EP - 5651

JO - Organic Letters

JF - Organic Letters

IS - 24

ER -

Tri-, tetra- and pentamers of 9,9'-spirobifluorenes through full ortho -linkage: High triplet-energy pure hydrocarbon host for blue phosphorescent emitter

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