Document Type
Article
Language
eng
Publication Date
7-2-2019
Publisher
American Chemical Society
Source Publication
Journal of Physical Chemistry : C
Source ISSN
1932-7447
Abstract
In this work, we report the design and photophysical properties of a unique class of Ni porphyrins, in which the tert-butyl benzene substituents at the meso positions of the macrocycle were tethered by ethers with alkyl linkers. This not only results in the permanently locked ruf distortion of the macrocycle but also enables the engineering of the degree of distortion through varying the length of alkyl linkers, which addressed the complication of uncertainty in the specific structural distortions that has long plagued the porphyrin photophysical community. Using advanced time-resolved optical and X-ray absorption spectroscopy, we observed tunability in the excited-state relaxation pathway depending on the degree of distortion and characterized the associated transient intermediate structure. These findings provide a new avenue to afford accessibility to a wide range of excited-state properties in nonplanar porphyrins.
Recommended Citation
Pattengale, Brian; Liu, Qiuhua; Hu, Wenhui; Yang, Sizhuo; He, Peilei; Tender, Sir Lawrence; Wang, Yingqi; Zhang, Xiaoyi; Zhou, Zaichun; Zhang, Jian; and Huang, Jier, "Selective Excited-State Dynamics in a Unique Set of Rationally Designed Ni Porphyrins" (2019). Chemistry Faculty Research and Publications. 999.
https://epublications.marquette.edu/chem_fac/999
Comments
Accepted version. Journal of Physical Chemistry : C, Vol. 123, No. 29 (July 2, 2019): 17994-18000. DOI. © 2019 American Chemical Society. Used with permission.