Molecular Packing and Singlet Fission: The Parent and Three Fluorinated 1,3-Diphenylisobenzofurans
- Univ. of Colorado, Boulder, CO (United States)
- Univ. of Colorado, Boulder, CO (United States); Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic)
- Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- 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
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