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Title: Molecular Packing and Singlet Fission: The Parent and Three Fluorinated 1,3-Diphenylisobenzofurans

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [2];  [3];  [4];  [3];  [3];  [5];  [2]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Univ. of Colorado, Boulder, CO (United States); Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic)
  3. Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  5. National Renewable Energy Lab. (NREL), Golden, CO (United States)

Crystal structures, singlet fission (SF) rate constants, and other photophysical properties are reported for three fluorinated derivatives of 1,3-diphenylisobenzofuran and compared with those of the two crystal forms of the parent. The results place constraints on the notion that the effects of molecular packing on SF rates could be studied separately from effects of chromophore structural changes by examining groups of chromophores related by weakly perturbing substitution if their crystal structures are different. The results further provide experimental evidence that dimer-based models of SF are not sufficiently general and that trimer- and possibly even higher oligomer-based or many-body models need to be formulated.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC36-08GO28308; SC0007004; AC02-06CH11357
OSTI ID:
1508955
Alternate ID(s):
OSTI ID: 1530193; OSTI ID: 1688396
Report Number(s):
NREL/JA-5900-73051
Journal Information:
Journal of Physical Chemistry Letters, Vol. 10, Issue 8; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (2)

Substituent effects on energetics and crystal morphology modulate singlet fission in 9,10-bis(phenylethynyl)anthracenes journal July 2019
Structure and photophysics of indigoids for singlet fission: Cibalackrot journal November 2019

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