Chiroptical molecular switches

BL Feringa, RA Van Delden, N Koumura… - Chemical …, 2000 - ACS Publications
The design of molecular switches and trigger elements offers a formidable challenge on the
road toward miniaturization in future technology1-3 and the development of materials for …

Switching a helical polymer between mirror images using circularly polarized light

J Li, GB Schuster, KS Cheon, MM Green… - Journal of the …, 2000 - ACS Publications
A system has been created in which chiral information inherent in circularly polarized light
can be used to influence the helical sense characteristics of a polymer. A racemic mixture of …

Antiaromaticity in nonbenzenoid oligoarenes and ladder polymers

RR Parkhurst, TM Swager - Polyarenes II, 2014 - Springer
Polycyclic aromatic hydrocarbons (PAHs) and fully-conjugated ladder polymers are leading
candidates for organics electronics, as their inherent conformational rigidity encourages …

A Search for Chiral Photochromic Optical Triggers for Liquid Crystals: Photoracemization of 1, 1 '-Binaphthylpyran through a Transient Biaryl Quinone Methide …

KS Burnham, GB Schuster - Journal of the American Chemical …, 1998 - ACS Publications
The photochromic pair 1, 1 '-binaphthylpyran (1) and 2-hydroxy-2 '-hydroxymethyl-[1, 1 ']-
binaphthylene (2) was examined to assess suitability as optical triggers in a liquid crystal …

A New Series of Sandwich‐Type 5, 5′‐Biterphenylenes: Synthetic Challenge, Structural Uniqueness and Photodynamics

ML Pan, CH Hsu, YD Lin, WS Chen… - … A European Journal, 2024 - Wiley Online Library
A new series of biaryls, bi‐linear‐terphenylenes (BLTPs), were prepared using the tert‐
butyllithium‐mediated cyclization as the key synthetic step. The three‐dimensional …

Photophysical properties of [N] phenylenes

C Dosche, HG Löhmannsröben, A Bieser… - Physical Chemistry …, 2002 - pubs.rsc.org
In the present study, photophysical properties of [N] phenylenes were studied by means of
stationary and time-resolved absorption and fluorescence spectroscopy (in THF at room …

Optical limiting characteristics and mechanism of silver bromide nanosols

MRV Sahyun, SE Hill, N Serpone, R Danesh… - Journal of applied …, 1996 - pubs.aip.org
Optical limiting behavior has been observed in nanosols comprising∼ 60 Å particles of
silver bromide. Switching times, τ, are consistently in the ns regime, and values of I 1/2;, the …

Cyclopropyl Group: An Excited‐State Aromaticity Indicator?

R Ayub, R Papadakis, K Jorner, B Zietz… - … –A European Journal, 2017 - Wiley Online Library
The cyclopropyl (cPr) group, which is a well‐known probe for detecting radical character at
atoms to which it is connected, is tested as an indicator for aromaticity in the first ππ* triplet …

A hot molecule as an intermediate in multiphoton reactions: First photoinduced reactions of biphenylene

T Yatsuhashi, T Akiho… - Journal of the American …, 2001 - ACS Publications
Biphenylene (BP) has been deemed to be a photoinert molecule because it fluoresces very
weakly, has little triplet transition, and does not react photochemically. 1 However, here we …

Ground state vibrations of biphenylene: experiment and theory

I Kautz, T Koch, K Malsch, G Hohlneicher - Journal of Molecular Structure …, 1997 - Elsevier
Biphenylene embedded in an argon matrix was investigated by Fourier transform IR
spectroscopy at 12 K. The spectrum allows the assignment of a considerable number of …