Several structural factors can contribute for the toxicity of chloronitrophenols, namely, the presence of (1) an acid-dissociable group (hydroxyl substituent), (2) strong-withdrawing moieties (halogen and nitrogroups), and (3) a bulky hydrophobic group (a benzene ring).
PEI functionalized SWCNTs are known to have a high selectivity towards strong electron withdrawing molecules.
The strong electron withdrawing and electron donor groups efficiently reduce the energy gaps.
The second-order polarizability has shown a remarkable increase on substitution of strong electron withdrawing atom/groups as an acceptor.
Compound 5l with strong electron withdrawing group (m-trifluoromethyl) also showed less potency against HIV-1 RT.
7,7,8,8-tetracyanoquinodimethane (TCNQ), a strong electron withdrawing olefin, has long been regarded as an ideal compound for the synthesis of semiconducting coordination polymers when coordinated to transition metals.
The superior SEI formation capability of TFPC could be attributed to the strong electron withdrawing group of CF3, which promote the "ring-opening" reaction.
The BT4 show wider absorption profile and lower bandgap as compared to BT3 due to the strong electron withdrawing ability of dicyanoquinodimethane (DCNQ) as compared to tetracyanobutadiene (TCBD).
The strong electron withdrawing groups did not increase the solar cell performance of furanyl-anthracenes. Surprisingly, DFA was found to exhibit the best OSCs performance (Efficiency = 3.36).
The complexes with strong electron withdrawing groups, i.e. –CN and –CF3, introduced at the unreacted ligands can increase the reactivity of reacted dithiolene with ethylene.
The result shows that ME17 has the largest maximum absorption wavelength (λmax) among these new designed dyes due to the strong electron withdrawing ability of two CNs.
