Impact of Benzannulation Site at the Diimine (N^N) Ligand on the Excited-State Properties and Reverse Saturable Absorption of Biscyclometalated Iridium(III) Complexes
Authors:
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Award ID(s):
Publication Date:
NSF-PAR ID:
10097292
Journal Name:
Inorganic Chemistry
Volume:
58
Issue:
9
Page Range or eLocation-ID:
5483 to 5493
ISSN:
0020-1669
National Science Foundation
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1. Abstract We show that for some even $k\leqslant 3570$ and all  $k$ with $442720643463713815200|k$, the equation $\phi (n)=\phi (n+k)$ has infinitely many solutions $n$, where $\phi$ is Euler’s totient function. We also show that for a positive proportion of all $k$, the equation $\sigma (n)=\sigma (n+k)$ has infinitely many solutions $n$. The proofs rely on recent progress on the prime $k$-tuples conjecture by Zhang, Maynard, Tao, and PolyMath.
2. (Ed.)